things for amd64; from art@

41 files changed, 1846 insertions, 0 deletions

diff --git a/lib/libc/arch/amd64/Makefile.inc b/lib/libc/arch/amd64/Makefile.inc
new file mode 100644
index 00000000000..53949f1c6bc
--- /dev/null
+++ b/lib/libc/arch/amd64/Makefile.inc
@@ -0,0 +1,5 @@
+#	$OpenBSD: Makefile.inc,v 1.1 2004/01/28 01:44:44 mickey Exp $
+
+KMINCLUDES= arch/x86_64/SYS.h
+KMSRCS=	bcmp.S bzero.S ffs.S strcat.S strcmp.S strcpy.S strlen.S \
+	htonl.S htons.S ntohl.S ntohs.S
diff --git a/lib/libc/arch/amd64/SYS.h b/lib/libc/arch/amd64/SYS.h
new file mode 100644
index 00000000000..bdf0bfe6d03
--- /dev/null
+++ b/lib/libc/arch/amd64/SYS.h
@@ -0,0 +1,107 @@
+/*	$OpenBSD: SYS.h,v 1.1 2004/01/28 01:44:44 mickey 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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 $
+ */
+
+/*
+ * XXXfvdl change to use syscall/sysret.
+ */
+
+#include <machine/asm.h>
+#include <sys/syscall.h>
+
+#ifdef __STDC__
+#define SYSTRAP(x)	movl $(SYS_ ## x),%eax; movq %rcx, %r10; syscall
+#else
+#define SYSTRAP(x)	movl $(SYS_/**/x),%eax; movq %rcx, %r10; syscall
+#endif
+
+#define CERROR		_C_LABEL(__cerror)
+#define CURBRK		_C_LABEL(__curbrk)
+
+#define SYSENTRY(x)							\
+	ENTRY(_thread_sys_ ## x);					\
+	.weak _C_LABEL(x);						\
+	_C_LABEL(x) = _C_LABEL(_thread_sys_ ## x)
+
+
+#define _SYSCALL_NOERROR(x,y)						\
+	SYSENTRY(x);							\
+	SYSTRAP(y)
+
+#ifdef PIC
+#define _SYSCALL(x,y)							\
+	.text; _ALIGN_TEXT;						\
+	2: mov PIC_GOT(CERROR), %rcx;					\
+	jmp *%rcx;							\
+	_SYSCALL_NOERROR(x,y);						\
+	jc 2b
+#else
+#define _SYSCALL(x,y)							\
+	.text; _ALIGN_TEXT;						\
+	2: jmp CERROR;							\
+	_SYSCALL_NOERROR(x,y);						\
+	jc 2b
+#endif
+
+#define SYSCALL_NOERROR(x)						\
+	_SYSCALL_NOERROR(x,x)
+
+#define SYSCALL(x)							\
+	_SYSCALL(x,x)
+
+#define PSEUDO_NOERROR(x,y)						\
+	_SYSCALL_NOERROR(x,y);						\
+	ret
+
+#define PSEUDO(x,y)							\
+	_SYSCALL(x,y);							\
+	ret
+
+#define RSYSCALL_NOERROR(x)						\
+	PSEUDO_NOERROR(x,x)
+
+#define RSYSCALL(x)							\
+	PSEUDO(x,x)
+
+#define	WSYSCALL(weak,strong)						\
+	WEAK_ALIAS(weak,strong);					\
+	PSEUDO(strong,weak)
+
+	.globl	CERROR
diff --git a/lib/libc/arch/amd64/gen/Makefile.inc b/lib/libc/arch/amd64/gen/Makefile.inc
new file mode 100644
index 00000000000..a150d95eba0
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/Makefile.inc
@@ -0,0 +1,7 @@
+#	$OpenBSD: Makefile.inc,v 1.1 2004/01/28 01:44:44 mickey Exp $
+
+SRCS+=	_setjmp.S alloca.S fabs.S frexp.c infinity.c isinf.c isnan.c ldexp.c \
+	modf.S setjmp.S sigsetjmp.S
+SRCS+=	flt_rounds.S fpgetmask.S fpgetround.S fpgetsticky.S fpsetmask.S \
+	fpsetround.S fpsetsticky.S
+
diff --git a/lib/libc/arch/amd64/gen/_setjmp.S b/lib/libc/arch/amd64/gen/_setjmp.S
new file mode 100644
index 00000000000..d9a59f7aa14
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/_setjmp.S
@@ -0,0 +1,82 @@
+/*	$OpenBSD: _setjmp.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: _setjmp.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $	*/
+
+/*
+ * Copyright (c) 2001 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Frank van der Linden for Wasabi Systems, Inc.
+ *
+ * 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 for the NetBSD Project by
+ *      Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
+ * 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>
+
+/*
+ * C library -- _setjmp, _longjmp
+ *
+ *	_longjmp(a,v)
+ * will generate a "return(v)" from the last call to
+ *	_setjmp(a)
+ * by restoring registers from the stack.
+ * The previous signal state is NOT restored.
+ */
+
+ENTRY(_setjmp)
+	movq    (%rsp),%r11
+	movq    %rbx,(_JB_RBX * 8)(%rdi)
+	movq    %rbp,(_JB_RBP * 8)(%rdi)
+	movq    %r12,(_JB_R12 * 8)(%rdi)
+	movq    %r13,(_JB_R13 * 8)(%rdi)
+	movq    %r14,(_JB_R14 * 8)(%rdi)
+	movq    %r15,(_JB_R15 * 8)(%rdi)
+	movq    %rsp,(_JB_RSP * 8)(%rdi)
+	movq    %r11,(_JB_PC  * 8)(%rdi)
+
+	xorl	%eax,%eax
+	ret
+
+ENTRY(_longjmp)
+	movq    (_JB_RBX * 8)(%rdi),%rbx
+	movq    (_JB_RBP * 8)(%rdi),%rbp
+	movq    (_JB_R12 * 8)(%rdi),%r12
+	movq    (_JB_R13 * 8)(%rdi),%r13
+	movq    (_JB_R14 * 8)(%rdi),%r14
+	movq    (_JB_R15 * 8)(%rdi),%r15
+	movq    (_JB_RSP * 8)(%rdi),%rsp
+	movq    (_JB_PC  * 8)(%rdi),%r11
+
+	movl	%esi,%eax
+	testl	%eax,%eax
+	jnz	1f
+	incl	%eax
+1:	movq	%r11,0(%rsp)
+	ret
diff --git a/lib/libc/arch/amd64/gen/alloca.S b/lib/libc/arch/amd64/gen/alloca.S
new file mode 100644
index 00000000000..8c15583012c
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/alloca.S
@@ -0,0 +1,13 @@
+/*	$OpenBSD: alloca.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: alloca.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $	*/
+
+#include <machine/asm.h>
+
+ENTRY(alloca)
+	popq	%rdx
+	movq	%rsp,%rcx
+	addq	$15,%rdi	/*  round up to 16 bytes */
+	andq	$~15,%rdi
+	subq	%rdi,%rsp
+	movq	%rsp,%rax
+	jmp	*%rdx
diff --git a/lib/libc/arch/amd64/gen/fabs.S b/lib/libc/arch/amd64/gen/fabs.S
new file mode 100644
index 00000000000..b94e862c1e9
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/fabs.S
@@ -0,0 +1,17 @@
+/*	$OpenBSD: fabs.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: fabs.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $	*/
+
+#include <machine/asm.h>
+
+/*
+ * Ok, this sucks. Is there really no way to push an xmm register onto
+ * the FP stack directly?
+ */
+
+ENTRY(fabs)
+	movsd	%xmm0, -8(%rsp)
+	fldl	-8(%rsp)
+	fabs
+	fstp	-8(%rsp)
+	movsd	-8(%rsp),%xmm0
+	ret
diff --git a/lib/libc/arch/amd64/gen/flt_rounds.S b/lib/libc/arch/amd64/gen/flt_rounds.S
new file mode 100644
index 00000000000..009c59ab64a
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/flt_rounds.S
@@ -0,0 +1,30 @@
+/*	$OpenBSD: flt_rounds.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: flt_rounds.S,v 1.2 2002/06/06 23:04:35 fvdl Exp $	*/
+
+/*
+ * Written by J.T. Conklin, Apr 4, 1995
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+	.text
+	_ALIGN_TEXT
+_map:
+	.byte 1		/* round to nearest */
+	.byte 3		/* round to negative infinity */
+	.byte 2		/* round to positive infinity */
+	.byte 0		/* round to zero */
+
+ENTRY(__flt_rounds)
+	fnstcw -4(%rsp)
+	movl -4(%rsp),%eax
+	shrl $10,%eax
+	andl $3,%eax
+#ifdef PIC
+	leaq PIC_GOT(_map),%rcx
+	movb (%rcx,%rax,1),%al
+#else
+	movb _map(,%rax,1),%al
+#endif
+	ret
diff --git a/lib/libc/arch/amd64/gen/fpgetmask.S b/lib/libc/arch/amd64/gen/fpgetmask.S
new file mode 100644
index 00000000000..688ba49cddc
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/fpgetmask.S
@@ -0,0 +1,27 @@
+/*	$OpenBSD: fpgetmask.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: fpgetmask.S,v 1.3 2002/06/12 19:17:22 fvdl Exp $	*/
+
+/*
+ * Written by J.T. Conklin, Apr 4, 1995
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+/*
+ * XXX only read x87 control word here. If an application only
+ * uses the fp* interface to manipulate FP bits, it should
+ * always remain in sync with the SSE mxcsr register.
+ */
+
+#ifdef WEAK_ALIAS
+WEAK_ALIAS(fpgetmask, _fpgetmask)
+ENTRY(_fpgetmask)
+#else
+ENTRY(fpgetmask)
+#endif
+	fnstcw -4(%rsp)
+	movl -4(%rsp),%eax
+	notl %eax
+	andl $63,%eax
+	ret
diff --git a/lib/libc/arch/amd64/gen/fpgetround.S b/lib/libc/arch/amd64/gen/fpgetround.S
new file mode 100644
index 00000000000..5220b3ef396
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/fpgetround.S
@@ -0,0 +1,26 @@
+/*	$OpenBSD: fpgetround.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: fpgetround.S,v 1.3 2002/06/12 19:17:22 fvdl Exp $	*/
+
+/*
+ * Written by J.T. Conklin, Apr 4, 1995
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+/*
+ * XXX store only x87 state. If an application only uses the fp*
+ * interface, this should be in sync with the SSE mxcsr register.
+ */
+
+#ifdef WEAK_ALIAS
+WEAK_ALIAS(fpgetround, _fpgetround)
+ENTRY(_fpgetround)
+#else
+ENTRY(fpgetround)
+#endif
+	fnstcw -4(%rsp)
+	movl -4(%rsp),%eax
+	rorl $10,%eax
+	andl $3,%eax
+	ret
diff --git a/lib/libc/arch/amd64/gen/fpgetsticky.S b/lib/libc/arch/amd64/gen/fpgetsticky.S
new file mode 100644
index 00000000000..fd12e2b500a
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/fpgetsticky.S
@@ -0,0 +1,28 @@
+/*	$OpenBSD: fpgetsticky.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: fpgetsticky.S,v 1.3 2002/06/12 19:17:22 fvdl Exp $	*/
+
+/*
+ * Written by Frank van der Linden at Wasabi Systems for NetBSD.
+ * Public domain.
+ *
+ */
+
+#include <machine/asm.h>
+
+/*
+ * XXX read both the x87 and SSE status words here, and OR
+ * them to get a complete picture of exceptions.
+ */
+
+#ifdef WEAK_ALIAS
+WEAK_ALIAS(fpgetsticky, _fpgetsticky)
+ENTRY(_fpgetsticky)
+#else
+ENTRY(fpgetsticky)
+#endif
+	fnstsw	-4(%rsp)
+	stmxcsr	-8(%rsp)
+	movl	-4(%rsp),%eax
+	orl	-8(%rsp),%eax
+	andl	$63,%eax
+	ret
diff --git a/lib/libc/arch/amd64/gen/fpsetmask.S b/lib/libc/arch/amd64/gen/fpsetmask.S
new file mode 100644
index 00000000000..665d55e8e47
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/fpsetmask.S
@@ -0,0 +1,42 @@
+/*	$OpenBSD: fpsetmask.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: fpsetmask.S,v 1.3 2002/06/12 19:17:22 fvdl Exp $	*/
+
+/*
+ * Written by Frank van der Linden at Wasabi Systems for NetBSD.
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+/*
+ * XXX set both the x87 control word and the SSE mxcsr register.
+ * Applications should only set exception and round flags
+ * via the fp*() interface, otherwise the status words
+ * will get our of sync.
+ */
+
+#ifdef WEAK_ALIAS
+WEAK_ALIAS(fpsetmask, _fpsetmask)
+ENTRY(_fpsetmask)
+#else
+ENTRY(fpsetmask)
+#endif
+	fnstcw	-4(%rsp)
+	stmxcsr	-8(%rsp)
+	andl	$63,%edi
+	notl	%edi
+
+	movl	-4(%rsp),%edx
+	movl	%edx,%eax
+	andl	%edi,%edx
+	movl	%edx,-4(%rsp)
+
+	movl	-8(%rsp),%edx
+	roll	$7,%edi
+	andl	%edi,%edx
+	movl	%edx,-8(%rsp)
+
+	fldcw	-4(%rsp)
+	ldmxcsr	-8(%rsp)
+	andl	$63,%eax
+	ret
diff --git a/lib/libc/arch/amd64/gen/fpsetround.S b/lib/libc/arch/amd64/gen/fpsetround.S
new file mode 100644
index 00000000000..b8508f8b6bd
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/fpsetround.S
@@ -0,0 +1,49 @@
+/*	$OpenBSD: fpsetround.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: fpsetround.S,v 1.3 2002/06/12 19:17:22 fvdl Exp $	*/
+
+/*
+ * Written by Frank van der Linden at Wasabi Systems for NetBSD.
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+/*
+ * XXX set both the x87 control word and the SSE mxcsr register.
+ * Applications should only set exception and round flags
+ * via the fp*() interface, otherwise the status words
+ * will get our of sync.
+ */ 
+
+
+#ifdef WEAK_ALIAS
+WEAK_ALIAS(fpsetround, _fpsetround)
+ENTRY(_fpsetround)
+#else
+ENTRY(fpsetround)
+#endif
+	fnstcw	-4(%rsp)
+	stmxcsr	-8(%rsp)
+
+	andl	$3,%edi
+
+	movl	-4(%rsp),%edx
+	rorl	$10,%edx
+	movl	%edx,%eax
+	andl	$3,%eax
+
+	andl	$~3,%edx
+	orl	%edi,%edx
+	roll	$10,%edx
+	movl	%edx,-4(%rsp)
+
+	movl	-8(%rsp),%edx
+	rorl	$13,%edx
+	andl	$~3,%edx
+	orl	%edi,%edx
+	roll	$13,%edx
+	movl	%edx,-8(%rsp)
+
+	ldmxcsr	-8(%rsp)
+	fldcw	-4(%rsp)
+	ret
diff --git a/lib/libc/arch/amd64/gen/fpsetsticky.S b/lib/libc/arch/amd64/gen/fpsetsticky.S
new file mode 100644
index 00000000000..c8e61101a12
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/fpsetsticky.S
@@ -0,0 +1,43 @@
+/*	$OpenBSD: fpsetsticky.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: fpsetsticky.S,v 1.3 2002/06/12 19:17:23 fvdl Exp $	*/
+
+/*
+ * Written by Frank van der Linden at Wasabi Systems for NetBSD
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+/*
+ * XXX set both the x87 status word and the SSE mxcsr register.
+ * Applications should only set exception and round flags
+ * via the fp*() interface, otherwise the status words
+ * will get our of sync.
+ */ 
+
+
+#ifdef WEAK_ALIAS
+WEAK_ALIAS(fpsetsticky, _fpsetsticky)
+ENTRY(_fpsetsticky)
+#else
+ENTRY(fpsetsticky)
+#endif
+	fnstenv	-28(%rsp)
+	stmxcsr	-32(%rsp)
+
+	andl	$63,%edi
+
+	movl	-24(%rsp),%eax
+	movl	%eax,%edx
+	andl	$63,%eax
+
+	orl	%edi,%edx
+	movl	%edx,-24(%rsp)
+
+	movl	-32(%rsp),%edx
+	orl	%edi,%edx
+	movl	%edx,-32(%rsp)
+
+	ldmxcsr	-32(%rsp)
+	fldenv	-28(%rsp)
+	ret
diff --git a/lib/libc/arch/amd64/gen/frexp.c b/lib/libc/arch/amd64/gen/frexp.c
new file mode 100644
index 00000000000..bc84467fa9e
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/frexp.c
@@ -0,0 +1,74 @@
+/*	$OpenBSD: frexp.c,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] = "$OpenBSD: frexp.c,v 1.1 2004/01/28 01:44:45 mickey Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+
+/*
+ * Split the given value into a fraction in the range [0.5, 1.0) and
+ * an exponent, such that frac * (2^exp) == value.  If value is 0,
+ * return 0.
+ */
+double
+frexp(value, eptr)
+	double value;
+	int *eptr;
+{
+	union {
+		double v;
+		struct ieee_double s;
+	} u;
+
+	if (value) {
+		/*
+		 * Fractions in [0.5..1.0) have an exponent of 2^-1.
+		 * Leave Inf and NaN alone, however.
+		 * WHAT ABOUT DENORMS?
+		 */
+		u.v = value;
+		if (u.s.dbl_exp != DBL_EXP_INFNAN) {
+			*eptr = u.s.dbl_exp - (DBL_EXP_BIAS - 1);
+			u.s.dbl_exp = DBL_EXP_BIAS - 1;
+		}
+		return (u.v);
+	} else {
+		*eptr = 0;
+		return ((double)0);
+	}
+}
diff --git a/lib/libc/arch/amd64/gen/infinity.c b/lib/libc/arch/amd64/gen/infinity.c
new file mode 100644
index 00000000000..8c7eb66d407
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/infinity.c
@@ -0,0 +1,10 @@
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] = "$OpenBSD: infinity.c,v 1.1 2004/01/28 01:44:45 mickey Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+/* infinity.c */
+
+#include <math.h>
+
+/* bytes for +Infinity on a 387 */
+char __infinity[] = { 0, 0, 0, 0, 0, 0, (char)0xf0, 0x7f };
diff --git a/lib/libc/arch/amd64/gen/isinf.c b/lib/libc/arch/amd64/gen/isinf.c
new file mode 100644
index 00000000000..6d29660d7f2
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/isinf.c
@@ -0,0 +1,51 @@
+/*	$OpenBSD: isinf.c,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] = "$OpenBSD: isinf.c,v 1.1 2004/01/28 01:44:45 mickey Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+
+int
+isinf(d)
+	double d;
+{
+	struct ieee_double *p = (struct ieee_double *)&d;
+
+	return (p->dbl_exp == DBL_EXP_INFNAN &&
+	    p->dbl_frach == 0 && p->dbl_fracl == 0);
+}
diff --git a/lib/libc/arch/amd64/gen/isnan.c b/lib/libc/arch/amd64/gen/isnan.c
new file mode 100644
index 00000000000..5df82ecce25
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/isnan.c
@@ -0,0 +1,51 @@
+/*	$OpenBSD: isnan.c,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] = "$OpenBSD: isnan.c,v 1.1 2004/01/28 01:44:45 mickey Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+
+int
+isnan(d)
+	double d;
+{
+	struct ieee_double *p = (struct ieee_double *)&d;
+
+	return (p->dbl_exp == DBL_EXP_INFNAN &&
+	    (p->dbl_frach != 0 || p->dbl_fracl != 0));
+}
diff --git a/lib/libc/arch/amd64/gen/ldexp.c b/lib/libc/arch/amd64/gen/ldexp.c
new file mode 100644
index 00000000000..b3e95956652
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/ldexp.c
@@ -0,0 +1,57 @@
+/*	$OpenBSD: ldexp.c,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Charles 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.
+ * 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] = "$OpenBSD: ldexp.c,v 1.1 2004/01/28 01:44:45 mickey Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+/*
+ * ldexp(value, exp): return value * (2 ** exp).
+ */
+
+double
+ldexp (double value, int exp)
+{
+	double temp;
+#if __GNUC__ >= 2
+	__asm ("fscale"
+		: "=t" (temp)
+		: "0" (value), "u" ((double)exp));
+#else
+	__asm ("fscale; fstp %%st(1)"
+		: "=f" (temp)
+		: "f" (value), "0" ((double)exp));
+#endif
+	return (temp);
+}
diff --git a/lib/libc/arch/amd64/gen/modf.S b/lib/libc/arch/amd64/gen/modf.S
new file mode 100644
index 00000000000..9e6c13b3cb4
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/modf.S
@@ -0,0 +1,94 @@
+/*	$OpenBSD: modf.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: modf.S,v 1.1 2001/06/19 00:25:03 fvdl Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Sean Eric Fagan.
+ *
+ * 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 the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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: @(#)modf.s	5.5 (Berkeley) 3/18/91
+ */
+
+#include <machine/asm.h>
+
+/*
+ * modf(value, iptr): return fractional part of value, and stores the
+ * integral part into iptr (a pointer to double).
+ *
+ * Written by Sean Eric Fagan (sef@kithrup.COM)
+ * Sun Mar 11 20:27:30 PST 1990
+ */
+
+/* With CHOP mode on, frndint behaves as TRUNC does.  Useful. */
+ENTRY(modf)
+	pushq	%rbp
+	movq	%rsp,%rbp
+	subq	$24,%rsp
+
+	/*
+	 * Set chop mode.
+	 */
+	fnstcw	-12(%rbp)
+	movw	-12(%rbp),%dx
+	orw	$3072,%dx
+	movw	%dx,-16(%rbp)
+	fldcw	-16(%rbp)
+
+	/*
+	 * Get integral part.
+	 */
+	movsd	%xmm0,-24(%rbp)
+	fldl	-24(%rbp)
+	frndint
+	fstpl	-8(%rbp)
+
+	/*
+	 * Restore control word.
+	 */
+	fldcw	-12(%rbp)
+
+	/*
+	 * Store integral part.
+	 */
+	movsd	-8(%rbp),%xmm0
+	movsd	%xmm0,(%rdi)
+
+	/*
+	 * Get fractional part and return it.
+	 */
+	fldl	-24(%rbp)
+	fsubl	-8(%rbp)
+	movsd   -8(%rbp),%xmm0
+
+	leave
+	ret
diff --git a/lib/libc/arch/amd64/gen/setjmp.S b/lib/libc/arch/amd64/gen/setjmp.S
new file mode 100644
index 00000000000..fb261616f0a
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/setjmp.S
@@ -0,0 +1,103 @@
+/*	$OpenBSD: setjmp.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: __setjmp14.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $	*/
+
+/*
+ * Copyright (c) 2001 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Frank van der Linden for Wasabi Systems, Inc.
+ *
+ * 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 for the NetBSD Project by
+ *      Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
+ * 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>
+
+/*
+ * C library -- _setjmp, _longjmp
+ *
+ *	longjmp(a,v)
+ * will generate a "return(v)" from the last call to
+ *	setjmp(a)
+ * by restoring registers from the stack.
+ * The previous signal state is restored.
+ */
+
+ENTRY(setjmp)
+	movq	(%rsp),%r11
+	movq	%rbx,(_JB_RBX * 8)(%rdi)
+	movq	%rbp,(_JB_RBP * 8)(%rdi)
+	movq	%r12,(_JB_R12 * 8)(%rdi)
+	movq	%r13,(_JB_R13 * 8)(%rdi)
+	movq	%r14,(_JB_R14 * 8)(%rdi)
+	movq	%r15,(_JB_R15 * 8)(%rdi)
+	movq	%rsp,(_JB_RSP * 8)(%rdi)
+	movq	%r11,(_JB_PC  * 8)(%rdi)
+
+	pushq	%rdi
+	xorq	%rdi,%rdi
+#ifdef PIC
+	call	PIC_PLT(_C_LABEL(sigblock))
+#else
+	call	_C_LABEL(sigblock)
+#endif
+	popq	%rdi
+	movq	%rax,(_JB_SIGMASK * 8)(%rdi)
+
+2:	xorl	%eax,%eax
+	ret
+
+ENTRY(longjmp)
+	movq	%rdi,%r12
+	movl	%esi,%r8d
+
+	movq	(_JB_SIGMASK * 8)(%rdi),%rdi
+	pushq	%r8
+#ifdef PIC
+	call	PIC_PLT(_C_LABEL(sigsetmask))
+#else
+	call	_C_LABEL(sigsetmask)
+#endif
+	popq	%r8
+	movq	(_JB_RBX * 8)(%r12),%rbx
+	movq	(_JB_RBP * 8)(%r12),%rbp
+	movq	(_JB_R13 * 8)(%r12),%r13
+	movq	(_JB_R14 * 8)(%r12),%r14
+	movq	(_JB_R15 * 8)(%r12),%r15
+	movq	(_JB_RSP * 8)(%r12),%rsp
+	movq	(_JB_PC  * 8)(%r12),%r11
+	movq	(_JB_R12 * 8)(%r12),%r12
+
+	movl	%r8d,%eax
+	testl	%eax,%eax
+	jnz	1f
+	incl	%eax
+1:	movq	%r11,0(%rsp)
+	ret
diff --git a/lib/libc/arch/amd64/gen/sigsetjmp.S b/lib/libc/arch/amd64/gen/sigsetjmp.S
new file mode 100644
index 00000000000..44fb4ca2249
--- /dev/null
+++ b/lib/libc/arch/amd64/gen/sigsetjmp.S
@@ -0,0 +1,107 @@
+/*	$OpenBSD: sigsetjmp.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: __setjmp14.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $	*/
+
+/*
+ * Copyright (c) 2001 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Frank van der Linden for Wasabi Systems, Inc.
+ *
+ * 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 for the NetBSD Project by
+ *      Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
+ * 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>
+
+/*
+ * C library -- _setjmp, _longjmp
+ *
+ *	longjmp(a,v)
+ * will generate a "return(v)" from the last call to
+ *	setjmp(a)
+ * by restoring registers from the stack.
+ * The previous signal state is restored.
+ */
+
+ENTRY(sigsetjmp)
+	movq	(%rsp),%r11
+	movq	%rbx,(_JB_RBX * 8)(%rdi)
+	movq	%rbp,(_JB_RBP * 8)(%rdi)
+	movq	%r12,(_JB_R12 * 8)(%rdi)
+	movq	%r13,(_JB_R13 * 8)(%rdi)
+	movq	%r14,(_JB_R14 * 8)(%rdi)
+	movq	%r15,(_JB_R15 * 8)(%rdi)
+	movq	%rsp,(_JB_RSP * 8)(%rdi)
+	movq	%r11,(_JB_PC  * 8)(%rdi)
+
+	movq    %rsi,(_JB_SIGFLAG  * 8)(%rdi)
+	testl   %esi,%esi
+	jz      2f
+
+	pushq	%rdi
+	xorq	%rdi,%rdi
+#ifdef PIC
+	call	PIC_PLT(_C_LABEL(sigblock))
+#else
+	call	_C_LABEL(sigblock)
+#endif
+	popq	%rdi
+	movq	%rax,(_JB_SIGMASK * 8)(%rdi)
+
+2:	xorl	%eax,%eax
+	ret
+
+ENTRY(siglongjmp)
+	movq	%rdi,%r12
+	pushq   %rsi
+	cmpl    $0, (_JB_SIGFLAG * 8)(%rdi)
+	jz      2f
+
+	movq	(_JB_SIGMASK * 8)(%rdi),%rdi
+#ifdef PIC
+	call	PIC_PLT(_C_LABEL(sigsetmask))
+#else
+	call	_C_LABEL(sigsetmask)
+#endif
+2:	popq	%rax
+	movq	(_JB_RBX * 8)(%r12),%rbx
+	movq	(_JB_RBP * 8)(%r12),%rbp
+	movq	(_JB_R13 * 8)(%r12),%r13
+	movq	(_JB_R14 * 8)(%r12),%r14
+	movq	(_JB_R15 * 8)(%r12),%r15
+	movq	(_JB_RSP * 8)(%r12),%rsp
+	movq	(_JB_PC  * 8)(%r12),%r11
+	movq	(_JB_R12 * 8)(%r12),%r12
+
+	testl	%eax,%eax
+	jnz	1f
+	incl	%eax
+1:	movq	%r11,0(%rsp)
+	ret
diff --git a/lib/libc/arch/amd64/net/Makefile.inc b/lib/libc/arch/amd64/net/Makefile.inc
new file mode 100644
index 00000000000..4c046a624dd
--- /dev/null
+++ b/lib/libc/arch/amd64/net/Makefile.inc
@@ -0,0 +1,4 @@
+#	$OpenBSD: Makefile.inc,v 1.1 2004/01/28 01:44:45 mickey Exp $
+
+SRCS+=  htonl.S htons.S ntohl.S ntohs.S
+LSRCS+=	htonl.c htons.c ntohl.c ntohs.c
diff --git a/lib/libc/arch/amd64/net/htonl.S b/lib/libc/arch/amd64/net/htonl.S
new file mode 100644
index 00000000000..e4c951a4b40
--- /dev/null
+++ b/lib/libc/arch/amd64/net/htonl.S
@@ -0,0 +1,10 @@
+/*	$OpenBSD: htonl.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+
+/* Written by Artur Grabowski. Public Domain */
+
+#include <machine/asm.h>
+
+ENTRY(_C_LABEL(htonl))
+	movl    %edi,%eax
+	bswapl  %eax
+	ret
diff --git a/lib/libc/arch/amd64/net/htons.S b/lib/libc/arch/amd64/net/htons.S
new file mode 100644
index 00000000000..80d9f9374a8
--- /dev/null
+++ b/lib/libc/arch/amd64/net/htons.S
@@ -0,0 +1,11 @@
+/*	$OpenBSD: htons.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+
+/* Written by Artur Grabowski. Public Domain */
+
+#include <machine/asm.h>
+
+ENTRY(_C_LABEL(htonl))
+	movl    %edi,%eax
+	xchgb   %ah,%al
+	ret
+
diff --git a/lib/libc/arch/amd64/net/ntohl.S b/lib/libc/arch/amd64/net/ntohl.S
new file mode 100644
index 00000000000..4a21dc541ca
--- /dev/null
+++ b/lib/libc/arch/amd64/net/ntohl.S
@@ -0,0 +1,10 @@
+/*	$OpenBSD: ntohl.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+
+/* Written by Artur Grabowski. Public Domain */
+
+#include <machine/asm.h>
+
+ENTRY(_C_LABEL(htonl))
+	movl    %edi,%eax
+	bswapl  %eax
+	ret
diff --git a/lib/libc/arch/amd64/net/ntohs.S b/lib/libc/arch/amd64/net/ntohs.S
new file mode 100644
index 00000000000..6c70cc26945
--- /dev/null
+++ b/lib/libc/arch/amd64/net/ntohs.S
@@ -0,0 +1,11 @@
+/*	$OpenBSD: ntohs.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+
+/* Written by Artur Grabowski. Public Domain */
+
+#include <machine/asm.h>
+
+ENTRY(_C_LABEL(htonl))
+	movl    %edi,%eax
+	xchgb   %ah,%al
+	ret
+
diff --git a/lib/libc/arch/amd64/string/Makefile.inc b/lib/libc/arch/amd64/string/Makefile.inc
new file mode 100644
index 00000000000..002194e1d8c
--- /dev/null
+++ b/lib/libc/arch/amd64/string/Makefile.inc
@@ -0,0 +1,6 @@
+#	$OpenBSD: Makefile.inc,v 1.1 2004/01/28 01:44:45 mickey Exp $
+
+SRCS+=  bcmp.c ffs.S index.c memchr.c memcmp.c bcopy.c bzero.c \
+        rindex.c strcat.c strcmp.c strcpy.c strcspn.c strlen.S \
+        strncat.c strncmp.c strncpy.c strpbrk.c strsep.c \
+        strspn.c strstr.c swab.c memset.c strlcpy.c strlcat.c
diff --git a/lib/libc/arch/amd64/string/ffs.S b/lib/libc/arch/amd64/string/ffs.S
new file mode 100644
index 00000000000..2666bc49e9d
--- /dev/null
+++ b/lib/libc/arch/amd64/string/ffs.S
@@ -0,0 +1,18 @@
+/*	$OpenBSD: ffs.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ * Adapted for NetBSD/x86_64 by Frank van der Linden <fvdl@wasabisystems.com>
+ */
+
+#include <machine/asm.h>
+
+ENTRY(ffs)
+	bsfl	%edi,%eax
+	jz	L1	 		/* ZF is set if all bits are 0 */
+	incl	%eax			/* bits numbered from 1, not 0 */
+	ret
+
+	_ALIGN_TEXT
+L1:	xorl	%eax,%eax		/* clear result */
+	ret
diff --git a/lib/libc/arch/amd64/string/strlen.S b/lib/libc/arch/amd64/string/strlen.S
new file mode 100644
index 00000000000..3afccb8f1ac
--- /dev/null
+++ b/lib/libc/arch/amd64/string/strlen.S
@@ -0,0 +1,18 @@
+/*	$OpenBSD: strlen.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ * Adapted for NetBSD/x86_64 by Frank van der Linden <fvdl@wasabisystems.com>
+ */
+
+#include <machine/asm.h>
+
+ENTRY(strlen)
+	cld				/* set search forward */
+	xorl	%eax,%eax		/* set search for null terminator */
+	movq	$-1,%rcx		/* set search for lots of characters */
+	repne				/* search! */
+	scasb
+	notq	%rcx			/* get length by taking	complement */
+	leaq	-1(%rcx),%rax		/* and subtracting one */
+	ret
diff --git a/lib/libc/arch/amd64/sys/Ovfork.S b/lib/libc/arch/amd64/sys/Ovfork.S
new file mode 100644
index 00000000000..865d460014f
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/Ovfork.S
@@ -0,0 +1,67 @@
+/*	$OpenBSD: Ovfork.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: Ovfork.S,v 1.2 2002/06/03 18:30:33 fvdl 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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 <machine/asm.h>
+
+#include "SYS.h"
+
+/*
+ * pid = vfork();
+ *
+ * %edx == 0 in parent process, %edx == 1 in child process.
+ * %eax == pid of child in parent, %eax == pid of parent in child.
+ *
+ */
+SYSENTRY(vfork)
+	popq	%r9		/* my rta into r9 */
+	SYSTRAP(vfork)
+	jc	err
+	decl	%edx
+	andl	%edx,%eax
+	jmp	*%r9
+err:
+	pushq	%r9
+#ifdef PIC
+	movq	PIC_GOT(CERROR), %rcx
+	jmp	*%rcx
+#else
+	jmp	CERROR
+#endif
diff --git a/lib/libc/arch/amd64/sys/brk.S b/lib/libc/arch/amd64/sys/brk.S
new file mode 100644
index 00000000000..1563091c7f3
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/brk.S
@@ -0,0 +1,87 @@
+/*	$OpenBSD: brk.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: brk.S,v 1.2 2002/06/03 18:30:33 fvdl 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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 <machine/asm.h>
+
+#include "SYS.h"
+
+	.globl	_end
+	.globl	_C_LABEL(__minbrk)
+	.globl	CURBRK
+
+#ifdef WEAK_ALIAS
+WEAK_ALIAS(brk, _brk)
+#endif
+
+	.data
+_C_LABEL(__minbrk):
+	.quad	_end
+	.text
+
+SYSENTRY(_brk)
+#ifdef PIC
+	movq	PIC_GOT(_C_LABEL(__minbrk)),%rdx
+	cmpq	%rdi,(%rdx)
+	jb	1f
+	movq	(%rdx),%rdi
+1:
+	SYSTRAP(break)
+	jc	err
+	movq	PIC_GOT(CURBRK),%rdx	# set up GOT addressing
+	movq	%rdi,(%rdx)
+	xorl	%eax,%eax
+	ret
+err:
+	movq	PIC_GOT(CERROR),%rdx
+	jmp	*%rdx
+#else
+	cmpq	%rdi,_C_LABEL(__minbrk)(%rip)
+	jb	1f
+	movq	_C_LABEL(__minbrk)(%rip),%rdi
+1:
+	SYSTRAP(break)
+	jc	err
+	movq	%rdi,CURBRK(%rip)
+	xorl	%eax,%eax
+	ret
+err:
+	jmp	CERROR
+#endif
diff --git a/lib/libc/arch/amd64/sys/cerror.S b/lib/libc/arch/amd64/sys/cerror.S
new file mode 100644
index 00000000000..400bb5d81e0
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/cerror.S
@@ -0,0 +1,55 @@
+/*	$OpenBSD: cerror.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: cerror.S,v 1.2 2002/06/03 18:30:33 fvdl 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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: @(#)cerror.s	5.1 (Berkeley) 4/23/90
+ */
+
+#include <machine/asm.h>
+
+#include "SYS.h"
+
+	.globl	_C_LABEL(errno)
+
+_ENTRY(CERROR)
+#ifdef PIC
+	movq    %rax, PIC_GOT(_C_LABEL(errno))
+#else
+	movq    %rax, _C_LABEL(errno)(%rip)
+#endif /* PIC */
+	movq	$-1,%rax
+	ret
diff --git a/lib/libc/arch/amd64/sys/exect.S b/lib/libc/arch/amd64/sys/exect.S
new file mode 100644
index 00000000000..31028402b6a
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/exect.S
@@ -0,0 +1,57 @@
+/*	$OpenBSD: exect.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: exect.S,v 1.1 2001/06/19 00:25:06 fvdl 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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: @(#)exect.s	5.1 (Berkeley) 4/23/90
+ */
+
+#include <machine/asm.h>
+
+#include "SYS.h"
+#include <machine/psl.h>
+
+SYSENTRY(exect)
+	pushfq
+	orb	$(PSL_T>>8),1(%rsp)
+	popfq
+	SYSTRAP(execve)
+#ifdef PIC
+	movq	PIC_GOT(CERROR), %rcx
+	jmp	*%rcx
+#else
+	jmp	CERROR
+#endif
diff --git a/lib/libc/arch/amd64/sys/fork.S b/lib/libc/arch/amd64/sys/fork.S
new file mode 100644
index 00000000000..155ee7227d6
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/fork.S
@@ -0,0 +1,49 @@
+/*	$OpenBSD: fork.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: fork.S,v 1.2 2003/02/13 02:50:51 nathanw 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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: @(#)fork.s	5.1 (Berkeley) 4/23/90
+ */
+
+#include <machine/asm.h>
+
+#include "SYS.h"
+
+SYSCALL(fork)
+	decl	%edx	/* from 1 to 0 in child, 0 to -1 in parent */
+	andl	%edx,%eax
+	ret		/* pid = fork(); */
diff --git a/lib/libc/arch/amd64/sys/rfork.S b/lib/libc/arch/amd64/sys/rfork.S
new file mode 100644
index 00000000000..caedbbd9aff
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/rfork.S
@@ -0,0 +1,48 @@
+/*	$OpenBSD: rfork.S,v 1.1 2004/01/28 01:44:45 mickey 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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: @(#)fork.s	5.1 (Berkeley) 4/23/90
+ */
+
+#include <machine/asm.h>
+
+#include "SYS.h"
+
+SYSCALL(rfork)
+	decl	%edx	/* from 1 to 0 in child, 0 to -1 in parent */
+	andl	%edx,%eax
+	ret		/* pid = rfork(); */
diff --git a/lib/libc/arch/amd64/sys/sbrk.S b/lib/libc/arch/amd64/sys/sbrk.S
new file mode 100644
index 00000000000..aad5f89d7d8
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/sbrk.S
@@ -0,0 +1,82 @@
+/*	$OpenBSD: sbrk.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: sbrk.S,v 1.1 2001/06/19 00:25:06 fvdl 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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 <machine/asm.h>
+
+#include "SYS.h"
+
+	.globl	_end
+	.globl	CURBRK
+
+#ifdef WEAK_ALIAS
+WEAK_ALIAS(sbrk, _sbrk)
+#endif
+
+	.data
+CURBRK:	.quad	_end
+	.text
+
+SYSENTRY(_sbrk)
+#ifdef PIC
+	movq	PIC_GOT(CURBRK),%rdx
+	movq	(%rdx),%rax
+	addq	%rax,%rdi
+	SYSTRAP(break)
+	jc	err
+	movq	PIC_GOT(CURBRK),%rdx
+	movq	(%rdx),%rax
+	movq	%rdi,(%rdx)
+	ret
+err:
+	mov	PIC_GOT(CERROR),%rdx
+	jmp	*%rdx
+#else
+	movq	CURBRK(%rip),%rax
+	movq	%rdi,%rsi
+	addq	%rax,%rdi
+	SYSTRAP(break)
+	jc	err
+	movq	CURBRK(%rip),%rax
+	addq	%rsi,CURBRK(%rip)
+	ret
+err:
+	jmp	CERROR
+#endif
diff --git a/lib/libc/arch/amd64/sys/sigpending.S b/lib/libc/arch/amd64/sys/sigpending.S
new file mode 100644
index 00000000000..bbebd47c6bf
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/sigpending.S
@@ -0,0 +1,49 @@
+/*	$OpenBSD: sigpending.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: sigpending.S,v 1.1 2001/06/19 00:25:06 fvdl 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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 <machine/asm.h>
+
+#include "SYS.h"
+
+SYSCALL(sigpending)
+	movl	%eax,(%rdi)		# store old mask
+	xorl	%eax,%eax
+	ret
diff --git a/lib/libc/arch/amd64/sys/sigprocmask.S b/lib/libc/arch/amd64/sys/sigprocmask.S
new file mode 100644
index 00000000000..3718f8de3ae
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/sigprocmask.S
@@ -0,0 +1,66 @@
+/*	$OpenBSD: sigprocmask.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: sigprocmask.S,v 1.1 2001/06/19 00:25:06 fvdl 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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 <machine/asm.h>
+
+#include "SYS.h"
+
+SYSENTRY(sigprocmask)
+	testq	%rsi,%rsi		# check new sigset pointer
+	jnz	1f			# if not null, indirect
+	movl	$1,%edi			# SIG_BLOCK
+	jmp	2f
+1:	movl	(%rsi),%esi		# fetch indirect  ...
+2:	SYSTRAP(sigprocmask)
+	jc	err
+	testq	%rdx,%rdx		# test if old mask requested
+	jz	out
+	movq	%rax,(%rdx)		# store old mask
+out:
+	xorl	%eax,%eax
+	ret
+err:
+#ifdef PIC
+	movq	PIC_GOT(CERROR), %rcx
+	jmp	*%rcx
+#else
+	jmp	CERROR
+#endif
diff --git a/lib/libc/arch/amd64/sys/sigreturn.S b/lib/libc/arch/amd64/sys/sigreturn.S
new file mode 100644
index 00000000000..e065cbc894d
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/sigreturn.S
@@ -0,0 +1,60 @@
+/*	$OpenBSD: sigreturn.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: __sigreturn14.S,v 1.1 2001/06/19 00:25:06 fvdl 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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: @(#)sigreturn.s	5.2 (Berkeley) 12/17/90"
+ */
+
+#include <machine/asm.h>
+
+#include "SYS.h"
+
+/*
+ * We must preserve the state of the registers as the user has set them up.
+ */
+#if 0	/* XXXfvdl fix later, but this one is really low priority */
+#ifdef GPROF
+#undef ENTRY
+#define MCOUNT_SYMBOL	__mcount
+#define	ENTRY(x) \
+	.globl _/**/x; _ALIGN_TEXT; _/**/x:  pusha ; \
+	.data; 1:; .long 0; .text; movl $1b,%eax; call MCOUNT_SYMBOL; popa ; nop
+#endif /* GPROF */
+#endif
+
+SYSCALL(sigreturn)
+	ret
diff --git a/lib/libc/arch/amd64/sys/sigsuspend.S b/lib/libc/arch/amd64/sys/sigsuspend.S
new file mode 100644
index 00000000000..985bf61b99d
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/sigsuspend.S
@@ -0,0 +1,58 @@
+/*	$OpenBSD: sigsuspend.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: sigsuspend.S,v 1.1 2001/06/19 00:25:07 fvdl 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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 <machine/asm.h>
+
+#include "SYS.h"
+
+SYSENTRY(sigsuspend)
+	movl	(%rdi),%edi		# indirect to mask arg
+	SYSTRAP(sigsuspend)
+	jc	err
+	xorl	%eax,%eax		# shouldn t happen
+	ret
+err:
+#ifdef PIC
+	movq	PIC_GOT(CERROR), %rcx
+	jmp	*%rcx
+#else
+	jmp	CERROR
+#endif
diff --git a/lib/libc/arch/amd64/sys/syscall.S b/lib/libc/arch/amd64/sys/syscall.S
new file mode 100644
index 00000000000..19b798dbc92
--- /dev/null
+++ b/lib/libc/arch/amd64/sys/syscall.S
@@ -0,0 +1,57 @@
+/*	$OpenBSD: syscall.S,v 1.1 2004/01/28 01:44:45 mickey Exp $	*/
+/*	$NetBSD: syscall.S,v 1.2 2002/06/03 18:30:33 fvdl 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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 <machine/asm.h>
+
+#include "SYS.h"
+
+SYSENTRY(syscall)
+	movl	%edi,%eax
+	syscall
+	jc	err
+	ret
+err:
+#ifdef PIC
+	movq	PIC_GOT(CERROR), %rcx
+	jmp	*%rcx
+#else
+	jmp	CERROR
+#endif