Add support for AArch64.

42 files changed, 1789 insertions, 0 deletions

diff --git a/lib/libc/arch/aarch64/DEFS.h b/lib/libc/arch/aarch64/DEFS.h
new file mode 100644
index 00000000000..04662946862
--- /dev/null
+++ b/lib/libc/arch/aarch64/DEFS.h
@@ -0,0 +1,61 @@
+/*	$OpenBSD: DEFS.h,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)SYS.h	5.5 (Berkeley) 5/7/91
+ *	$NetBSD: SYS.h,v 1.5 2002/06/03 18:30:32 fvdl Exp $
+ */
+
+#include <machine/asm.h>
+
+/*
+ * We define a hidden alias with the prefix "_libc_" for each global symbol
+ * that may be used internally.  By referencing _libc_x instead of x, other
+ * parts of libc prevent overriding by the application and avoid unnecessary
+ * relocations.
+ */
+#define _HIDDEN(x)		_libc_##x
+#define _HIDDEN_ALIAS(x,y)			\
+	STRONG_ALIAS(_HIDDEN(x),y);		\
+	.hidden _HIDDEN(x)
+#define _HIDDEN_FALIAS(x,y)			\
+	_HIDDEN_ALIAS(x,y);			\
+	.type _HIDDEN(x),@function
+
+/*
+ * For functions implemented in ASM that aren't syscalls.
+ *   END_STRONG(x)	Like DEF_STRONG() in C; for standard/reserved C names
+ *   END_WEAK(x)	Like DEF_WEAK() in C; for non-ISO C names
+ */
+#define	END_STRONG(x)	END(x); _HIDDEN_FALIAS(x,x); END(_HIDDEN(x))
+#define	END_WEAK(x)	END_STRONG(x); .weak x
+
diff --git a/lib/libc/arch/aarch64/Makefile.inc b/lib/libc/arch/aarch64/Makefile.inc
new file mode 100644
index 00000000000..20eea05c66b
--- /dev/null
+++ b/lib/libc/arch/aarch64/Makefile.inc
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile.inc,v 1.1 2017/01/11 18:09:24 patrick Exp $
+# $NetBSD: Makefile.inc,v 1.5 2002/07/10 04:29:06 thorpej Exp $
+
+.include <bsd.own.mk>
+
+CERROR=	cerror.S
diff --git a/lib/libc/arch/aarch64/SYS.h b/lib/libc/arch/aarch64/SYS.h
new file mode 100644
index 00000000000..e52b7fe5ebf
--- /dev/null
+++ b/lib/libc/arch/aarch64/SYS.h
@@ -0,0 +1,108 @@
+/*	$OpenBSD: SYS.h,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: SYS.h,v 1.8 2003/08/07 16:42:02 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)SYS.h	5.5 (Berkeley) 5/7/91
+ */
+
+#include "DEFS.h"
+#include <sys/syscall.h>
+#include <arm64/swi.h>
+
+#define SYSENTRY(x)					\
+	.weak _C_LABEL(x);				\
+	_C_LABEL(x) = _C_LABEL(_thread_sys_ ## x);	\
+	ENTRY(_thread_sys_ ## x)
+#define SYSENTRY_HIDDEN(x)				\
+	ENTRY(_thread_sys_ ## x)
+#define __END_HIDDEN(x)					\
+	END(_thread_sys_ ## x);				\
+	_HIDDEN_FALIAS(x, _thread_sys_ ## x);		\
+	END(_HIDDEN(x))
+#define __END(x)					\
+	__END_HIDDEN(x); END(x)
+
+#define SYSTRAP(x) \
+	ldr	x8, =SYS_ ## x;		\
+	svc	0
+
+#define	CERROR		_C_LABEL(__cerror)
+
+#define _SYSCALL_NOERROR(x,y)						\
+	SYSENTRY(x);							\
+	SYSTRAP(y)
+#define _SYSCALL_HIDDEN_NOERROR(x,y)					\
+	SYSENTRY_HIDDEN(x);						\
+	SYSTRAP(y)
+
+#define _SYSCALL(x, y)							\
+	_SYSCALL_NOERROR(x,y);						\
+	bcs CERROR
+#define _SYSCALL_HIDDEN(x, y)						\
+	_SYSCALL_HIDDEN_NOERROR(x,y);					\
+	bcs CERROR
+
+#define SYSCALL_NOERROR(x)						\
+	_SYSCALL_NOERROR(x,x)
+
+#define SYSCALL(x)							\
+	_SYSCALL(x,x)
+
+
+#define PSEUDO_NOERROR(x,y)						\
+	_SYSCALL_NOERROR(x,y);						\
+	ret;								\
+	__END(x)
+
+#define PSEUDO(x,y)							\
+	_SYSCALL(x,y);							\
+	ret;								\
+	__END(x)
+#define PSEUDO_HIDDEN(x,y)						\
+	_SYSCALL_HIDDEN(x,y);						\
+	ret;								\
+	__END_HIDDEN(x)
+
+#define RSYSCALL_NOERROR(x)						\
+	PSEUDO_NOERROR(x,x)
+
+#define RSYSCALL(x)							\
+	PSEUDO(x,x)
+#define RSYSCALL_HIDDEN(x)						\
+	PSEUDO_HIDDEN(x,x)
+#define SYSCALL_END(x)							\
+	__END(x)
+#define SYSCALL_END_HIDDEN(x)						\
+	__END_HIDDEN(x)
+
+	.globl	CERROR
diff --git a/lib/libc/arch/aarch64/Symbols.list b/lib/libc/arch/aarch64/Symbols.list
new file mode 100644
index 00000000000..3ee01d71eae
--- /dev/null
+++ b/lib/libc/arch/aarch64/Symbols.list
@@ -0,0 +1,15 @@
+__bswap16
+__bswap32
+__mcount
+__multf3
+_fpgetmask
+_fpgetround
+_fpgetsticky
+_fpsetmask
+_fpsetround
+_fpsetsticky
+_mcount
+_memcpy
+_stack
+end
+fabsl
diff --git a/lib/libc/arch/aarch64/gdtoa/Makefile.inc b/lib/libc/arch/aarch64/gdtoa/Makefile.inc
new file mode 100644
index 00000000000..dd5219036dd
--- /dev/null
+++ b/lib/libc/arch/aarch64/gdtoa/Makefile.inc
@@ -0,0 +1,3 @@
+#	$OpenBSD: Makefile.inc,v 1.1 2017/01/11 18:09:24 patrick Exp $
+
+SRCS+= strtord.c strtorQ.c
diff --git a/lib/libc/arch/aarch64/gdtoa/arith.h b/lib/libc/arch/aarch64/gdtoa/arith.h
new file mode 100644
index 00000000000..32513b96e90
--- /dev/null
+++ b/lib/libc/arch/aarch64/gdtoa/arith.h
@@ -0,0 +1,6 @@
+#define IEEE_8087
+#define Arith_Kind_ASL 1
+#define Long int
+#define Intcast (int)(long)
+#define Double_Align
+#define X64_bit_pointers
diff --git a/lib/libc/arch/aarch64/gdtoa/gd_qnan.h b/lib/libc/arch/aarch64/gdtoa/gd_qnan.h
new file mode 100644
index 00000000000..9593d5c247f
--- /dev/null
+++ b/lib/libc/arch/aarch64/gdtoa/gd_qnan.h
@@ -0,0 +1,12 @@
+#define f_QNAN 0x7fc00000
+#define d_QNAN0 0x0
+#define d_QNAN1 0x7ff80000
+#define ld_QNAN0 0x0
+#define ld_QNAN1 0x0
+#define ld_QNAN2 0x0
+#define ld_QNAN3 0x7fff8000
+#define ldus_QNAN0 0x0
+#define ldus_QNAN1 0x0
+#define ldus_QNAN2 0x0
+#define ldus_QNAN3 0x0
+#define ldus_QNAN4 0x0
diff --git a/lib/libc/arch/aarch64/gdtoa/strtold.c b/lib/libc/arch/aarch64/gdtoa/strtold.c
new file mode 100644
index 00000000000..4115a146d6c
--- /dev/null
+++ b/lib/libc/arch/aarch64/gdtoa/strtold.c
@@ -0,0 +1,46 @@
+/*	$OpenBSD: strtold.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*-
+ * Copyright (c) 2003 David Schultz <das@FreeBSD.ORG>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Machine-dependent glue to integrate David Gay's gdtoa
+ * package into libc for architectures where a long double
+ * uses quad precision, such as sparc64.
+ */
+
+#include <float.h>
+
+#include "gdtoaimp.h"
+
+long double
+strtold(const char * __restrict s, char ** __restrict sp)
+{
+	long double result;
+
+	strtorQ(s, sp, FLT_ROUNDS, &result);
+	return result;
+}
+DEF_STRONG(strtold);
diff --git a/lib/libc/arch/aarch64/gen/Makefile.inc b/lib/libc/arch/aarch64/gen/Makefile.inc
new file mode 100644
index 00000000000..a7b1b73f3ef
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/Makefile.inc
@@ -0,0 +1,12 @@
+# $OpenBSD: Makefile.inc,v 1.1 2017/01/11 18:09:24 patrick Exp $
+# $NetBSD: Makefile.inc,v 1.6 2003/08/01 17:03:47 lukem Exp $
+
+SRCS+=	byte_swap_2.S byte_swap_4.S fabs.c flt_rounds.c infinity.c
+SRCS+=	ldexp.c modf.c nan.c
+SRCS+=	setjmp.S _setjmp.S sigsetjmp.S
+SRCS+=	clz_tab.c
+SRCS+=	fpgetmask.c fpgetround.c fpgetsticky.c
+SRCS+=	fpsetmask.c fpsetround.c fpsetsticky.c
+SRCS+=	fpclassifyl.c
+SRCS+=	isfinitel.c isinfl.c isnanl.c isnormall.c
+SRCS+=	signbitl.c
diff --git a/lib/libc/arch/aarch64/gen/_setjmp.S b/lib/libc/arch/aarch64/gen/_setjmp.S
new file mode 100644
index 00000000000..220ef839a97
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/_setjmp.S
@@ -0,0 +1,99 @@
+/*	$OpenBSD: _setjmp.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*-
+ * Copyright (c) 2014 Andrew Turner
+ * Copyright (c) 2014 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * Portions of this software were developed by Andrew Turner
+ * under sponsorship from the FreeBSD Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include "DEFS.h"
+#include <machine/setjmp.h>
+
+ENTRY(_setjmp)
+	/* Store the magic value and stack pointer */
+	ldr	x8, .Lmagic
+	mov	x9, sp
+	stp	x8, x9, [x0], #16
+
+	/* Store the general purpose registers and lr */
+	stp	x19, x20, [x0], #16
+	stp	x21, x22, [x0], #16
+	stp	x23, x24, [x0], #16
+	stp	x25, x26, [x0], #16
+	stp	x27, x28, [x0], #16
+	stp	x29, x30, [x0], #16
+
+#ifndef _STANDALONE
+	/* Store the vfp registers */
+	stp	d8, d9, [x0], #16
+	stp	d10, d11, [x0], #16
+	stp	d12, d13, [x0], #16
+	stp	d14, d15, [x0]
+#endif
+
+	/* Return value */
+	mov	x0, #0
+	ret
+	.align	3
+.Lmagic:
+	.quad	_JB_MAGIC__SETJMP
+END_STRONG(_setjmp)
+
+ENTRY(_longjmp)
+	/* Check the magic value */
+	ldr	x8, [x0], #8
+	ldr	x9, .Lmagic
+	cmp	x8, x9
+	b.ne	botch
+
+	/* Restore the stack pointer */
+	ldr	x8, [x0], #8
+	mov	sp, x8
+
+	/* Restore the general purpose registers and lr */
+	ldp	x19, x20, [x0], #16
+	ldp	x21, x22, [x0], #16
+	ldp	x23, x24, [x0], #16
+	ldp	x25, x26, [x0], #16
+	ldp	x27, x28, [x0], #16
+	ldp	x29, x30, [x0], #16
+
+#ifndef _STANDALONE
+	/* Restore the vfp registers */
+	ldp	d8, d9, [x0], #16
+	ldp	d10, d11, [x0], #16
+	ldp	d12, d13, [x0], #16
+	ldp	d14, d15, [x0]
+#endif
+
+	/* Load the return value */
+	mov	x0, x1
+	ret
+
+botch:
+	bl	_HIDDEN(abort)
+END_STRONG(_longjmp)
diff --git a/lib/libc/arch/aarch64/gen/byte_swap_2.S b/lib/libc/arch/aarch64/gen/byte_swap_2.S
new file mode 100644
index 00000000000..5bd951ee8a4
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/byte_swap_2.S
@@ -0,0 +1,42 @@
+/*	$OpenBSD: byte_swap_2.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: byte_swap_2.S,v 1.3 2003/04/05 23:08:51 bjh21 Exp $	*/
+
+/*-
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <machine/asm.h>
+
+_ENTRY(_C_LABEL(__bswap16))
+_ENTRY(_C_LABEL(ntohs))
+_ENTRY(_C_LABEL(htons))
+_PROF_PROLOGUE
+	and     w8, w0, #0xffff
+        ubfx    w0, w0, #8, #8
+	bfi     w0, w8, #8, #16
+	ret
diff --git a/lib/libc/arch/aarch64/gen/byte_swap_4.S b/lib/libc/arch/aarch64/gen/byte_swap_4.S
new file mode 100644
index 00000000000..6d9119b2230
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/byte_swap_4.S
@@ -0,0 +1,40 @@
+/*	$OpenBSD: byte_swap_4.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: byte_swap_4.S,v 1.2 2003/04/05 23:08:51 bjh21 Exp $	*/
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Neil A. Carson
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <machine/asm.h>
+
+_ENTRY(_C_LABEL(__bswap32))
+_ENTRY(_C_LABEL(ntohl))
+_ENTRY(_C_LABEL(htonl))
+_PROF_PROLOGUE
+	rev	w0, w0
+	ret
diff --git a/lib/libc/arch/aarch64/gen/clz_tab.c b/lib/libc/arch/aarch64/gen/clz_tab.c
new file mode 100644
index 00000000000..2135debb702
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/clz_tab.c
@@ -0,0 +1,34 @@
+const unsigned char __clz_tab[] = {
+	0, 1, 2, 2, 3, 3, 3, 3,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	5, 5, 5, 5, 5, 5, 5, 5,
+	5, 5, 5, 5, 5, 5, 5, 5,
+        6, 6, 6, 6, 6, 6, 6, 6,
+        6, 6, 6, 6, 6, 6, 6, 6,
+        6, 6, 6, 6, 6, 6, 6, 6,
+        6, 6, 6, 6, 6, 6, 6, 6,
+        7, 7, 7, 7, 7, 7, 7, 7,
+        7, 7, 7, 7, 7, 7, 7, 7,
+        7, 7, 7, 7, 7, 7, 7, 7,
+        7, 7, 7, 7, 7, 7, 7, 7,
+        7, 7, 7, 7, 7, 7, 7, 7,
+        7, 7, 7, 7, 7, 7, 7, 7,
+        7, 7, 7, 7, 7, 7, 7, 7,
+        7, 7, 7, 7, 7, 7, 7, 7,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8,
+        8, 8, 8, 8, 8, 8, 8, 8
+};
diff --git a/lib/libc/arch/aarch64/gen/fabs.c b/lib/libc/arch/aarch64/gen/fabs.c
new file mode 100644
index 00000000000..9688c091b29
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/fabs.c
@@ -0,0 +1,35 @@
+/*	$OpenBSD: fabs.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <math.h>
+
+/*
+ * fabs(d) returns the absolute value of d.
+ */
+double
+fabs(double d)
+{
+	struct ieee_double *p = (struct ieee_double *)&d;
+
+	p->dbl_sign = 0;
+
+	return(d);
+}
+
+__strong_alias(fabsl, fabs);
diff --git a/lib/libc/arch/aarch64/gen/flt_rounds.c b/lib/libc/arch/aarch64/gen/flt_rounds.c
new file mode 100644
index 00000000000..717e4102b4f
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/flt_rounds.c
@@ -0,0 +1,77 @@
+/*	$OpenBSD: flt_rounds.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: flt_rounds.c,v 1.1 2000/12/29 20:13:48 bjh21 Exp $	*/
+
+/*
+ * Copyright (c) 1996 Mark Brinicombe
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Mark Brinicombe
+ *	for the NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <ieeefp.h>
+#include <float.h>
+
+static const int map[] = {
+	1,	/* round to nearest */
+	2,	/* round to positive infinity */
+	3,	/* round to negative infinity */
+	0	/* round to zero */
+};
+
+/*
+ * Return the current FP rounding mode
+ *
+ * Returns:
+ *	0 - round to zero
+ *	1 - round to nearest
+ *	2 - round to postive infinity
+ *	3 - round to negative infinity
+ *
+ * ok all we need to do is get the current FP rounding mode
+ * index our map table and return the appropriate value.
+ *
+ * HOWEVER:
+ * The ARM FPA codes the rounding mode into the actual FP instructions
+ * so there is no such thing as a global rounding mode.
+ * The default is round to nearest if rounding is not explicitly specified.
+ * FP instructions generated by GCC will not explicitly specify a rounding
+ * mode.
+ *
+ * So the best we can do it to return the rounding mode FP instructions
+ * use if rounding is not specified which is round to nearest.
+ *
+ * This could change in the future with new floating point emulators or
+ * soft float FP libraries.
+ */
+
+int
+__flt_rounds()
+{
+	return(map[fpgetround()]);
+}
+DEF_STRONG(__flt_rounds);
diff --git a/lib/libc/arch/aarch64/gen/fpclassifyl.c b/lib/libc/arch/aarch64/gen/fpclassifyl.c
new file mode 100644
index 00000000000..80e0a0698d3
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/fpclassifyl.c
@@ -0,0 +1,45 @@
+/*	$OpenBSD: fpclassifyl.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <math.h>
+
+int
+__fpclassifyl(long double e)
+{
+	struct ieee_ext *p = (struct ieee_ext *)&e;
+
+	if (p->ext_exp == 0) {
+		if (p->ext_frach == 0 && p->ext_frachm == 0 &&
+		    p->ext_fraclm == 0 && p->ext_fracl == 0)
+			return FP_ZERO;
+		else
+			return FP_SUBNORMAL;
+	}
+
+	if (p->ext_exp == EXT_EXP_INFNAN) {
+		if (p->ext_frach == 0 && p->ext_frachm == 0 &&
+		    p->ext_fraclm == 0 && p->ext_fracl == 0)
+			return FP_INFINITE;
+		else
+			return FP_NAN;
+	}
+
+	return FP_NORMAL;
+}
+DEF_STRONG(__fpclassifyl);
diff --git a/lib/libc/arch/aarch64/gen/fpgetmask.c b/lib/libc/arch/aarch64/gen/fpgetmask.c
new file mode 100644
index 00000000000..c2158c75963
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/fpgetmask.c
@@ -0,0 +1,48 @@
+/*	$OpenBSD: fpgetmask.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(_fpgetmask,fpgetmask);
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except
+fpgetmask(void)
+{
+	fp_except mask;
+
+	__asm __volatile("mrs %x0, fpcr" : "=&r"(mask));
+
+	return ((mask >> 8) & FP_X_MASK);
+}
diff --git a/lib/libc/arch/aarch64/gen/fpgetround.c b/lib/libc/arch/aarch64/gen/fpgetround.c
new file mode 100644
index 00000000000..fa7dda454c7
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/fpgetround.c
@@ -0,0 +1,46 @@
+/*	$OpenBSD: fpgetround.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(_fpgetround,fpgetround);
+#endif
+
+fp_rnd
+fpgetround(void)
+{
+	uint32_t fpscr;
+
+	__asm __volatile("mrs %x0, fpcr" : "=&r"(fpscr));
+
+	return ((fpscr >> 22) & 3);
+}
diff --git a/lib/libc/arch/aarch64/gen/fpgetsticky.c b/lib/libc/arch/aarch64/gen/fpgetsticky.c
new file mode 100644
index 00000000000..852e97e550b
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/fpgetsticky.c
@@ -0,0 +1,48 @@
+/*	$OpenBSD: fpgetsticky.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(_fpgetsticky,fpgetsticky);
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except
+fpgetsticky(void)
+{
+	fp_except old;
+
+	__asm __volatile("mrs %x0, fpcr" : "=&r"(old));
+
+	return (old & FP_X_MASK);
+}
diff --git a/lib/libc/arch/aarch64/gen/fpsetmask.c b/lib/libc/arch/aarch64/gen/fpsetmask.c
new file mode 100644
index 00000000000..997e2da31be
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/fpsetmask.c
@@ -0,0 +1,51 @@
+/*	$OpenBSD: fpsetmask.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(_fpsetmask,fpsetmask);
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except
+fpsetmask(fp_except mask)
+{
+	fp_except old, new;
+
+	__asm __volatile("mrs %x0, fpcr" : "=&r"(old));
+	mask = (mask & FP_X_MASK) << 8;
+	new = (old & ~(FP_X_MASK << 8)) | mask;
+	__asm __volatile("msr fpcr, %x0" : : "r"(new));
+
+	return ((old >> 8) & FP_X_MASK);
+}
diff --git a/lib/libc/arch/aarch64/gen/fpsetround.c b/lib/libc/arch/aarch64/gen/fpsetround.c
new file mode 100644
index 00000000000..05f1c6e7d4e
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/fpsetround.c
@@ -0,0 +1,49 @@
+/*	$OpenBSD: fpsetround.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(_fpsetround,fpsetround);
+#endif
+
+fp_rnd
+fpsetround(fp_rnd rnd_dir)
+{
+	uint32_t old, new;
+
+	__asm __volatile("mrs %x0, fpcr" : "=&r"(old));
+	new = old & ~(3 << 22);
+	new |= rnd_dir << 22;
+	__asm __volatile("msr fpcr, %x0" : : "r"(new));
+
+	return ((old >> 22) & 3);
+}
diff --git a/lib/libc/arch/aarch64/gen/fpsetsticky.c b/lib/libc/arch/aarch64/gen/fpsetsticky.c
new file mode 100644
index 00000000000..7a4994f8220
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/fpsetsticky.c
@@ -0,0 +1,51 @@
+/*	$OpenBSD: fpsetsticky.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(_fpsetsticky,fpsetsticky);
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except
+fpsetsticky(fp_except except)
+{
+	fp_except old, new;
+
+	__asm __volatile("mrs %x0, fpcr" : "=&r"(old));
+	new = old & ~(FP_X_MASK);
+	new &= ~except;
+	__asm __volatile("msr fpcr, %x0" : : "r"(new));
+
+	return (old & except);
+}
diff --git a/lib/libc/arch/aarch64/gen/infinity.c b/lib/libc/arch/aarch64/gen/infinity.c
new file mode 100644
index 00000000000..a845539ec8b
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/infinity.c
@@ -0,0 +1,16 @@
+/*	$OpenBSD: infinity.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: infinity.c,v 1.3 2002/02/19 20:08:19 bjh21 Exp $	*/
+
+/*
+ * IEEE-compatible infinity.c -- public domain.
+ */
+
+#include <endian.h>
+#include <math.h>
+
+char __infinity[] __attribute__((__aligned__(sizeof(double)))) =
+#if BYTE_ORDER == BIG_ENDIAN
+	{ 0x7f, 0xf0,    0,    0, 0, 0,    0,    0};
+#else
+	{    0,    0,    0,    0, 0, 0, 0xf0, 0x7f};
+#endif
diff --git a/lib/libc/arch/aarch64/gen/isfinitel.c b/lib/libc/arch/aarch64/gen/isfinitel.c
new file mode 100644
index 00000000000..eeffa6f3e16
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/isfinitel.c
@@ -0,0 +1,28 @@
+/*	$OpenBSD: isfinitel.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <math.h>
+
+int
+__isfinitel(long double e)
+{
+	struct ieee_ext *p = (struct ieee_ext *)&e;
+
+	return (p->ext_exp != EXT_EXP_INFNAN);
+}
diff --git a/lib/libc/arch/aarch64/gen/isinfl.c b/lib/libc/arch/aarch64/gen/isinfl.c
new file mode 100644
index 00000000000..86bea7075bd
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/isinfl.c
@@ -0,0 +1,30 @@
+/*	$OpenBSD: isinfl.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <math.h>
+
+int
+__isinfl(long double e)
+{
+	struct ieee_ext *p = (struct ieee_ext *)&e;
+
+	return (p->ext_exp == EXT_EXP_INFNAN &&
+	    p->ext_frach == 0 && p->ext_frachm == 0 &&
+	    p->ext_fraclm == 0 && p->ext_fracl == 0);
+}
diff --git a/lib/libc/arch/aarch64/gen/isnanl.c b/lib/libc/arch/aarch64/gen/isnanl.c
new file mode 100644
index 00000000000..a8d08f1da73
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/isnanl.c
@@ -0,0 +1,30 @@
+/*	$OpenBSD: isnanl.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <math.h>
+
+int
+__isnanl(long double e)
+{
+	struct ieee_ext *p = (struct ieee_ext *)&e;
+
+	return (p->ext_exp == EXT_EXP_INFNAN &&
+	    (p->ext_frach != 0 || p->ext_frachm != 0 ||
+	     p->ext_fraclm != 0 || p->ext_fracl != 0));
+}
diff --git a/lib/libc/arch/aarch64/gen/isnormall.c b/lib/libc/arch/aarch64/gen/isnormall.c
new file mode 100644
index 00000000000..2e3d8b5fc8f
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/isnormall.c
@@ -0,0 +1,28 @@
+/*	$OpenBSD: isnormall.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <math.h>
+
+int
+__isnormall(long double e)
+{
+	struct ieee_ext *p = (struct ieee_ext *)&e;
+
+	return (p->ext_exp != 0 && p->ext_exp != EXT_EXP_INFNAN);
+}
diff --git a/lib/libc/arch/aarch64/gen/nan.c b/lib/libc/arch/aarch64/gen/nan.c
new file mode 100644
index 00000000000..eca9a48c383
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/nan.c
@@ -0,0 +1,14 @@
+/*	$OpenBSD: nan.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+
+/* Written by Martynas Venckus.  Public Domain. */
+
+#include <endian.h>
+#include <math.h>
+
+/* bytes for qNaN on an arm (IEEE single format) */
+char __nan[] __attribute__((__aligned__(sizeof(float)))) =
+#if BYTE_ORDER == BIG_ENDIAN
+					{ 0x7f, 0xc0, 0, 0 };
+#else /* BYTE_ORDER == BIG_ENDIAN */
+					{ 0, 0, 0xc0, 0x7f };
+#endif /* BYTE_ORDER == BIG_ENDIAN */
diff --git a/lib/libc/arch/aarch64/gen/setjmp.S b/lib/libc/arch/aarch64/gen/setjmp.S
new file mode 100644
index 00000000000..ba4010be7ff
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/setjmp.S
@@ -0,0 +1,118 @@
+/*	$OpenBSD: setjmp.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*-
+ * Copyright (c) 2014 Andrew Turner
+ * Copyright (c) 2014 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * Portions of this software were developed by Andrew Turner
+ * under sponsorship from the FreeBSD Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include "SYS.h"
+#include <machine/setjmp.h>
+
+ENTRY(setjmp)
+	stp	x0, x30, [sp, #-16]!
+
+	/* Store the signal mask */
+	add	x2, x0, #(_JB_SIGMASK * 8)	/* oset */
+	mov	x1, #0				/* set */
+	mov	x0, #1				/* SIG_BLOCK */
+	SYSTRAP(sigprocmask)
+
+	ldp	x0, x30, [sp], #16
+
+	/* Store the magic value and stack pointer */
+	ldr	x8, .Lmagic
+	mov	x9, sp
+	stp	x8, x9, [x0], #16
+
+	/* Store the general purpose registers and lr */
+	stp	x19, x20, [x0], #16
+	stp	x21, x22, [x0], #16
+	stp	x23, x24, [x0], #16
+	stp	x25, x26, [x0], #16
+	stp	x27, x28, [x0], #16
+	stp	x29, x30, [x0], #16
+
+	/* Store the vfp registers */
+	stp	d8, d9, [x0], #16
+	stp	d10, d11, [x0], #16
+	stp	d12, d13, [x0], #16
+	stp	d14, d15, [x0]
+
+	/* Return value */
+	mov	x0, #0
+	ret
+
+	.align	3
+.Lmagic:
+	.quad	_JB_MAGIC_SETJMP
+END_STRONG(setjmp)
+
+ENTRY(longjmp)
+	stp	x0, x1, [sp, #-32]!
+	str	x30, [sp, #24]
+
+	/* Restore the signal mask */
+	mov	x2, #0				/* oset */
+	add	x1, x0, #(_JB_SIGMASK * 8)	/* set */
+	mov	x0, #3				/* SIG_SETMASK */
+	SYSTRAP(sigprocmask)
+
+	ldr	x30, [sp, #24]
+	ldp	x0, x1, [sp], #32
+
+	/* Check the magic value */
+	ldr	x8, [x0], #8
+	ldr	x9, .Lmagic
+	cmp	x8, x9
+	b.ne	botch
+
+	/* Restore the stack pointer */
+	ldr	x8, [x0], #8
+	mov	sp, x8
+
+	/* Restore the general purpose registers and lr */
+	ldp	x19, x20, [x0], #16
+	ldp	x21, x22, [x0], #16
+	ldp	x23, x24, [x0], #16
+	ldp	x25, x26, [x0], #16
+	ldp	x27, x28, [x0], #16
+	ldp	x29, x30, [x0], #16
+
+	/* Restore the vfp registers */
+	ldp	d8, d9, [x0], #16
+	ldp	d10, d11, [x0], #16
+	ldp	d12, d13, [x0], #16
+	ldp	d14, d15, [x0]
+
+	/* Load the return value */
+	mov	x0, x1
+	ret
+
+botch:
+	bl	_HIDDEN(abort)
+END_STRONG(longjmp)
diff --git a/lib/libc/arch/aarch64/gen/signbitl.c b/lib/libc/arch/aarch64/gen/signbitl.c
new file mode 100644
index 00000000000..7afd4eaf0d7
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/signbitl.c
@@ -0,0 +1,28 @@
+/*	$OpenBSD: signbitl.c,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <math.h>
+
+int
+__signbitl(long double e)
+{
+	struct ieee_ext *p = (struct ieee_ext *)&e;
+
+	return p->ext_sign;
+}
diff --git a/lib/libc/arch/aarch64/gen/sigsetjmp.S b/lib/libc/arch/aarch64/gen/sigsetjmp.S
new file mode 100644
index 00000000000..186859bb52f
--- /dev/null
+++ b/lib/libc/arch/aarch64/gen/sigsetjmp.S
@@ -0,0 +1,53 @@
+/*	$OpenBSD: sigsetjmp.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*-
+ * Copyright (c) 2014 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Andrew Turner under
+ * sponsorship from the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <machine/asm.h>
+
+#include <machine/setjmp.h>
+
+ENTRY(sigsetjmp)
+	cmp	x1, #0
+	b.eq	_C_LABEL(_setjmp)
+	b	_C_LABEL(setjmp)
+//END(sigsetjmp)
+
+ENTRY(siglongjmp)
+	/* Load the _setjmp magic */
+	ldr	x2, .Lmagic
+	ldr	x3, [x0]
+
+	/* Check the magic */
+	cmp	x2, x3
+	b.eq	_C_LABEL(_longjmp)
+	b	_C_LABEL(longjmp)
+.Lmagic:
+	.align	3
+	.quad	_JB_MAGIC__SETJMP
+//END(siglongjmp)
diff --git a/lib/libc/arch/aarch64/net/Makefile.inc b/lib/libc/arch/aarch64/net/Makefile.inc
new file mode 100644
index 00000000000..f88d6126c4e
--- /dev/null
+++ b/lib/libc/arch/aarch64/net/Makefile.inc
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile.inc,v 1.1 2017/01/11 18:09:24 patrick Exp $
+# $NetBSD: Makefile.inc,v 1.1 2000/12/29 20:13:53 bjh21 Exp $
+
+# hton* and nto* functions provided by ../gen/byte_swap_*.S
+SRCS+= 
diff --git a/lib/libc/arch/aarch64/string/Makefile.inc b/lib/libc/arch/aarch64/string/Makefile.inc
new file mode 100644
index 00000000000..a44e1d0265e
--- /dev/null
+++ b/lib/libc/arch/aarch64/string/Makefile.inc
@@ -0,0 +1,9 @@
+# $OpenBSD: Makefile.inc,v 1.1 2017/01/11 18:09:24 patrick Exp $
+
+SRCS+=	bcopy.c memcpy.c memmove.c \
+	strchr.c strrchr.c \
+	bcmp.c bzero.c ffs.c memchr.c memcmp.c memset.c \
+	strcmp.c strncmp.c \
+	strcat.c strcpy.c strcspn.c strlen.c strlcat.c strlcpy.c \
+	strncat.c  strncpy.c strpbrk.c strsep.c \
+	strspn.c swab.c strstr.c
diff --git a/lib/libc/arch/aarch64/sys/Ovfork.S b/lib/libc/arch/aarch64/sys/Ovfork.S
new file mode 100644
index 00000000000..daf30211c56
--- /dev/null
+++ b/lib/libc/arch/aarch64/sys/Ovfork.S
@@ -0,0 +1,55 @@
+/*	$OpenBSD: Ovfork.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: Ovfork.S,v 1.6 2003/08/07 16:42:03 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)Ovfork.s	5.1 (Berkeley) 4/23/90
+ */
+
+#include "SYS.h"
+
+/*
+ * pid = vfork();
+ *
+ * On return from the SWI:
+ * r1 == 0 in parent process, r1 == 1 in child process.
+ * r0 == pid of child in parent, r0 == pid of parent in child.
+ */
+	.text
+	.align	0
+
+SYSENTRY_HIDDEN(vfork)
+	mov	x2, x30
+	SYSTRAP(vfork)
+	bcs	CERROR
+	sub	x1, x1, #1	/* r1 == 0xffffffff if parent, 0 if child */
+	and	x0, x0, x1	/* r0 == 0 if child, else unchanged */
+	mov	x30, x2
+	ret
+SYSCALL_END_HIDDEN(vfork)
diff --git a/lib/libc/arch/aarch64/sys/brk.S b/lib/libc/arch/aarch64/sys/brk.S
new file mode 100644
index 00000000000..0a259b1edcc
--- /dev/null
+++ b/lib/libc/arch/aarch64/sys/brk.S
@@ -0,0 +1,96 @@
+/*	$OpenBSD: brk.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: brk.S,v 1.7 2003/12/26 11:23:44 martin Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)brk.s	5.2 (Berkeley) 12/17/90
+ */
+
+#include "SYS.h"
+
+	.globl	_C_LABEL(end)
+	.globl	CURBRK
+
+#ifdef WEAK_ALIAS
+WEAK_ALIAS(brk, _brk)
+#endif
+
+	.data
+	.align	0
+	.globl	_C_LABEL(__minbrk)
+	.type	_C_LABEL(__minbrk),#object
+_C_LABEL(__minbrk):
+	.quad	_C_LABEL(end)
+
+/*
+ * Change the data segment size
+ */
+SYSENTRY(_brk)
+#ifdef __PIC__
+	/* Setup the GOT */
+	adrp	x3, :got:minbrk
+	ldr	x1, [x3, #:got_lo12:minbrk]
+#else
+	ldr	x1, .Lminbrk
+#endif
+	/* Get the minimum allowable brk address */
+	ldr	x1, [x1]
+
+	/*
+	 * Valid the address specified and set to the minimum
+	 * if the address is below minbrk.
+	 */
+	cmp	x0, x1
+	b.ge	1f
+	mov	x0, x1
+1:
+	mov	x2, x0
+	SYSTRAP(break)
+	bcs	CERROR
+
+#ifdef __PIC__
+	adrp	x3, :got:minbrk
+	ldr	x1, [x3, #:got_lo12:minbrk]
+#else
+	ldr	x1, .Lcurbrk
+#endif
+	/* Store the new address in curbrk */
+	str	x2, [x1]
+
+	/* Return 0 for success */
+	mov	x0, #0x00000000
+	ret
+
+	.align	3
+#if !defined(__PIC__)
+.Lminbrk:
+	.quad	_C_LABEL(__minbrk)
+.Lcurbrk:
+	.quad	CURBRK
+#endif
diff --git a/lib/libc/arch/aarch64/sys/cerror.S b/lib/libc/arch/aarch64/sys/cerror.S
new file mode 100644
index 00000000000..68edada6834
--- /dev/null
+++ b/lib/libc/arch/aarch64/sys/cerror.S
@@ -0,0 +1,44 @@
+/*	$OpenBSD: cerror.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*-
+ * Copyright (c) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include "SYS.h"
+
+_ENTRY(CERROR)
+	stp	x0, x30, [sp,#-16]!
+	bl	_C_LABEL(__errno)
+	ldp	x1, x30, [sp],#16
+	str	x1, [x0]
+	movn	x0, #0
+	movn	x1, #0
+	ret
+END(CERROR)
+
+#if !defined(__PIC__)
+.Lerrno:
+	.word	errno
+#endif
diff --git a/lib/libc/arch/aarch64/sys/sbrk.S b/lib/libc/arch/aarch64/sys/sbrk.S
new file mode 100644
index 00000000000..8732a96b860
--- /dev/null
+++ b/lib/libc/arch/aarch64/sys/sbrk.S
@@ -0,0 +1,86 @@
+/*	$OpenBSD: sbrk.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: sbrk.S,v 1.7 2003/08/07 16:42:05 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)sbrk.s	5.1 (Berkeley) 4/23/90
+ */
+
+#include "SYS.h"
+
+	.globl	_C_LABEL(end)
+
+#ifdef WEAK_ALIAS
+WEAK_ALIAS(sbrk, _sbrk)
+#endif
+
+	.data
+	.align	0
+	.globl	CURBRK
+	.type	CURBRK,#object
+	.globl	minbrk
+	.type	minbrk,#object
+CURBRK:
+	.quad	_C_LABEL(end)
+_ASM_LABEL(minbrk):
+	.quad	_C_LABEL(end)
+
+/*
+ * Change the data segment size
+ */
+SYSENTRY(_sbrk)
+#ifdef __PIC__
+	/* Setup the GOT */
+	adrp	x3, :got:CURBRK
+	ldr	x2, [x3, #:got_lo12:CURBRK]
+#else
+	ldr	x2, .Lcurbrk
+#endif
+	/* Get the current brk address */
+	ldr	x1, [x2]
+
+	/* Calculate new value */
+	mov	x3, x0
+	add	x0, x0, x1
+	SYSTRAP(break)
+	bcs	CERROR
+
+	/* Store new curbrk value */
+	ldr	x0, [x2]
+	add	x1, x0, x3
+	str	x1, [x2]
+
+	/* Return old curbrk value */
+	ret
+
+	.align	0
+#if !defined(__PIC__)
+.Lcurbrk:
+	.word	CURBRK
+#endif
diff --git a/lib/libc/arch/aarch64/sys/sigpending.S b/lib/libc/arch/aarch64/sys/sigpending.S
new file mode 100644
index 00000000000..65265363115
--- /dev/null
+++ b/lib/libc/arch/aarch64/sys/sigpending.S
@@ -0,0 +1,43 @@
+/*	$OpenBSD: sigpending.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: sigpending.S,v 1.5 2003/08/07 16:42:05 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)sigpending.s	5.1 (Berkeley) 7/1/90
+ */
+
+#include "SYS.h"
+
+SYSENTRY(sigpending)
+	ldr	w0, [x0]
+	SYSTRAP(sigpending)
+	bcs	CERROR
+	mov	x0, #0
+	ret
+SYSCALL_END(sigpending)
diff --git a/lib/libc/arch/aarch64/sys/sigprocmask.S b/lib/libc/arch/aarch64/sys/sigprocmask.S
new file mode 100644
index 00000000000..6de70f6a1f5
--- /dev/null
+++ b/lib/libc/arch/aarch64/sys/sigprocmask.S
@@ -0,0 +1,53 @@
+/*	$OpenBSD: sigprocmask.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: sigprocmask.S,v 1.5 2003/08/07 16:42:05 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)sigprocmask.s	5.2 (Berkeley) 12/17/90
+ */
+
+#include "SYS.h"
+
+SYSENTRY_HIDDEN(sigprocmask)
+	cbz	x1, 2f
+	ldr	w1, [x1]
+	b 2f
+1:
+	mov	w0, #0x00000001
+	mov	x1, #0x00000000
+2:
+
+	SYSTRAP(sigprocmask)
+	bcs	CERROR
+	cbz	x2, 1f
+	str	w0, [x2]
+1:
+	mov	x0, #0x00000000
+	ret
+SYSCALL_END_HIDDEN(sigprocmask)
diff --git a/lib/libc/arch/aarch64/sys/sigsuspend.S b/lib/libc/arch/aarch64/sys/sigsuspend.S
new file mode 100644
index 00000000000..9be04da1525
--- /dev/null
+++ b/lib/libc/arch/aarch64/sys/sigsuspend.S
@@ -0,0 +1,43 @@
+/*	$OpenBSD: sigsuspend.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: sigsuspend.S,v 1.6 2003/08/07 16:42:05 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)sigsuspend.s	5.2 (Berkeley) 12/17/90
+ */
+
+#include "SYS.h"
+
+SYSENTRY_HIDDEN(sigsuspend)
+	ldr	w0, [x0]
+	SYSTRAP(sigsuspend)
+	bcs	CERROR
+	mov	x0, #0
+	ret
+SYSCALL_END_HIDDEN(sigsuspend)
diff --git a/lib/libc/arch/aarch64/sys/syscall.S b/lib/libc/arch/aarch64/sys/syscall.S
new file mode 100644
index 00000000000..4f7488a8929
--- /dev/null
+++ b/lib/libc/arch/aarch64/sys/syscall.S
@@ -0,0 +1,37 @@
+/*	$OpenBSD: syscall.S,v 1.1 2017/01/11 18:09:24 patrick Exp $	*/
+/*	$NetBSD: syscall.S,v 1.4 2003/08/07 16:42:05 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)syscall.s	5.1 (Berkeley) 4/23/90
+ */
+
+#include "SYS.h"
+
+RSYSCALL(syscall)
diff --git a/lib/libc/arch/aarch64/sys/tfork_thread.S b/lib/libc/arch/aarch64/sys/tfork_thread.S
new file mode 100644
index 00000000000..333dd0461bb
--- /dev/null
+++ b/lib/libc/arch/aarch64/sys/tfork_thread.S
@@ -0,0 +1,39 @@
+/* $OpenBSD: tfork_thread.S,v 1.1 2017/01/11 18:09:24 patrick Exp $ */
+/*
+ * Copyright (c) 2005 Dale Rahn <drahn@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/syscall.h>
+#include <machine/asm.h>
+#include "SYS.h"
+
+/*
+ *                r0     r1     r2         r3
+ * __tfork_thread(param, psize, start_fnc, start_arg);
+ */
+
+ENTRY(__tfork_thread)
+	SYSTRAP(__tfork)
+	bcs	CERROR
+
+	/* check if we are parent or child */
+	cbz	x1, 1f
+	ret
+
+1:
+	/* child */
+	mov	x0, x3
+	blr	x2
+	SYSTRAP(__threxit)
+END(__tfork_thread)