16 files changed, 1275 insertions, 0 deletions
diff --git a/lib/libc/powerpc64/gen/Makefile.inc b/lib/libc/powerpc64/gen/Makefile.inc
new file mode 100644
index 000000000000..c48ff05ae552
--- /dev/null
+++ b/lib/libc/powerpc64/gen/Makefile.inc
@@ -0,0 +1,6 @@
+SRCS += _ctx_start.S fabs.S flt_rounds.c fpgetmask.c fpgetround.c \
+	fpgetsticky.c fpsetmask.c fpsetround.c \
+	infinity.c ldexp.c makecontext.c _setjmp.S \
+	setjmp.S sigsetjmp.S signalcontext.c syncicache.c \
+	trivial-getcontextx.c
+
diff --git a/lib/libc/powerpc64/gen/_ctx_start.S b/lib/libc/powerpc64/gen/_ctx_start.S
new file mode 100644
index 000000000000..98225f9c1138
--- /dev/null
+++ b/lib/libc/powerpc64/gen/_ctx_start.S
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2004 Suleiman Souhlal
+ * 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 <machine/asm.h>
+	.globl  CNAME(_ctx_done)
+	.globl  CNAME(abort)
+
+ ENTRY(_ctx_start)
+#if !defined(_CALL_ELF) || _CALL_ELF == 1
+	/* Load values from function descriptor */
+	ld	%r2,8(%r14)
+	ld	%r14,0(%r14)
+#else
+	/*
+	 * The stack frame was already set up in makecontext(),
+	 * so we can safely use the guaranteed fields here.
+	 *
+	 * Note we do step on the allocated stack frame's TOC,
+	 * but since we never return from this function (i.e.
+	 * never restore the stack frame) this should be safe.
+	 */
+	std	%r2,24(%r1)	/* save TOC */
+
+	/* Load global entry point */
+	mr	%r12,%r14
+#endif
+	mtlr	%r14
+	blrl			/* branch to start function */
+	mr	%r3,%r15	/* pass pointer to ucontext as argument */
+	nop
+#if defined(_CALL_ELF) && _CALL_ELF != 1
+	/* Restore TOC */
+	ld	%r2,24(%r1)
+#endif
+	bl	CNAME(_ctx_done) /* branch to ctxt completion func */
+	/*
+	 * we should never return from the
+	 * above branch.
+	 */
+	nop
+	bl	CNAME(abort)	/* abort */
+	nop
+ END(_ctx_start)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/powerpc64/gen/_setjmp.S b/lib/libc/powerpc64/gen/_setjmp.S
new file mode 100644
index 000000000000..94a744b4fa28
--- /dev/null
+++ b/lib/libc/powerpc64/gen/_setjmp.S
@@ -0,0 +1,153 @@
+/*-
+ * Copyright (c) 2002 Peter Grehan.
+ * 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.
+ */
+/*      $NetBSD: _setjmp.S,v 1.1 1997/03/29 20:55:53 thorpej Exp $      */
+
+#include <machine/asm.h>
+/*
+ * C library -- _setjmp, _longjmp
+ *
+ *      _longjmp(a,v)
+ * will generate a "return(v?v:1)" from the last call to
+ *      _setjmp(a)
+ * by restoring registers from the stack.
+ * The previous signal state is NOT restored.
+ *
+ * jmpbuf layout:
+ *     +------------+
+ *     |   unused   |
+ *     +------------+
+ *     |   unused   |
+ *     |            |
+ *     | (4 words)  |
+ *     |            |
+ *     +------------+
+ *     | saved regs |
+ *     |    ...     |	
+ */
+
+ENTRY(_setjmp)
+	mflr	%r11
+	mfcr	%r12
+	mr	%r10,%r1
+	mr	%r9,%r2
+	std	%r9,40 + 0*8(%r3)
+	stfd	%f14,40 + 23*8(%r3)
+	std	%r10,40 + 1*8(%r3)
+	stfd	%f15,40 + 24*8(%r3)
+	std	%r11,40 + 2*8(%r3)
+	stfd	%f16,40 + 25*8(%r3)
+	std	%r12,40 + 3*8(%r3)
+	stfd	%f17,40 + 26*8(%r3)
+	std	%r13,40 + 4*8(%r3)
+	stfd	%f18,40 + 27*8(%r3)
+	std	%r14,40 + 5*8(%r3)
+	stfd	%f19,40 + 28*8(%r3)
+	std	%r15,40 + 6*8(%r3)
+	stfd	%f20,40 + 29*8(%r3)
+	std	%r16,40 + 7*8(%r3)
+	stfd	%f21,40 + 30*8(%r3)
+	std	%r17,40 + 8*8(%r3)
+	stfd	%f22,40 + 31*8(%r3)
+	std	%r18,40 + 9*8(%r3)
+	stfd	%f23,40 + 32*8(%r3)
+	std	%r19,40 + 10*8(%r3)
+	stfd	%f24,40 + 33*8(%r3)
+	std	%r20,40 + 11*8(%r3)
+	stfd	%f25,40 + 34*8(%r3)
+	std	%r21,40 + 12*8(%r3)
+	stfd	%f26,40 + 35*8(%r3)
+	std	%r22,40 + 13*8(%r3)
+	stfd	%f27,40 + 36*8(%r3)
+	std	%r23,40 + 14*8(%r3)
+	stfd	%f28,40 + 37*8(%r3)
+	std	%r24,40 + 15*8(%r3)
+	stfd	%f29,40 + 38*8(%r3)
+	std	%r25,40 + 16*8(%r3)
+	stfd	%f30,40 + 39*8(%r3)
+	std	%r26,40 + 17*8(%r3)
+	stfd	%f31,40 + 40*8(%r3)
+	std	%r27,40 + 18*8(%r3)
+	std	%r28,40 + 19*8(%r3)
+	std	%r29,40 + 20*8(%r3)
+	std	%r30,40 + 21*8(%r3)
+	std	%r31,40 + 22*8(%r3)
+	li	%r3,0
+	blr
+END(_setjmp)
+
+ENTRY(_longjmp)
+	ld	%r9,40 + 0*8(%r3)
+	lfd	%f14,40 + 23*8(%r3)
+	ld	%r10,40 + 1*8(%r3)
+	lfd	%f15,40 + 24*8(%r3)
+	ld	%r11,40 + 2*8(%r3)
+	lfd	%f16,40 + 25*8(%r3)
+	ld	%r12,40 + 3*8(%r3)
+	lfd	%f17,40 + 26*8(%r3)
+	ld	%r14,40 + 5*8(%r3)
+	lfd	%f18,40 + 27*8(%r3)
+	ld	%r15,40 + 6*8(%r3)
+	lfd	%f19,40 + 28*8(%r3)
+	ld	%r16,40 + 7*8(%r3)
+	lfd	%f20,40 + 29*8(%r3)
+	ld	%r17,40 + 8*8(%r3)
+	lfd	%f21,40 + 30*8(%r3)
+	ld	%r18,40 + 9*8(%r3)
+	lfd	%f22,40 + 31*8(%r3)
+	ld	%r19,40 + 10*8(%r3)
+	lfd	%f23,40 + 32*8(%r3)
+	ld	%r20,40 + 11*8(%r3)
+	lfd	%f24,40 + 33*8(%r3)
+	ld	%r21,40 + 12*8(%r3)
+	lfd	%f25,40 + 34*8(%r3)
+	ld	%r22,40 + 13*8(%r3)
+	lfd	%f26,40 + 35*8(%r3)
+	ld	%r23,40 + 14*8(%r3)
+	lfd	%f27,40 + 36*8(%r3)
+	ld	%r24,40 + 15*8(%r3)
+	lfd	%f28,40 + 37*8(%r3)
+	ld	%r25,40 + 16*8(%r3)
+	lfd	%f29,40 + 38*8(%r3)
+	ld	%r26,40 + 17*8(%r3)
+	lfd	%f30,40 + 39*8(%r3)
+	ld	%r27,40 + 18*8(%r3)
+	lfd	%f31,40 + 40*8(%r3)
+	ld	%r28,40 + 19*8(%r3)
+	ld	%r29,40 + 20*8(%r3)
+	ld	%r30,40 + 21*8(%r3)
+	ld	%r31,40 + 22*8(%r3)
+
+	mtlr	%r11
+	mtcr	%r12
+	mr	%r2,%r9
+	mr	%r1,%r10
+	or.	%r3,%r4,%r4
+	bnelr
+	li	%r3,1
+	blr
+END(_longjmp)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/powerpc64/gen/fabs.S b/lib/libc/powerpc64/gen/fabs.S
new file mode 100644
index 000000000000..d9dbf9d86fe0
--- /dev/null
+++ b/lib/libc/powerpc64/gen/fabs.S
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2004 Peter Grehan.
+ * 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 <machine/asm.h>
+/*
+ * double fabs(double)
+ */
+ENTRY(fabs)
+	fabs	%f1,%f1
+	blr
+END(fabs)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/powerpc64/gen/flt_rounds.c b/lib/libc/powerpc64/gen/flt_rounds.c
new file mode 100644
index 000000000000..800ec6944d79
--- /dev/null
+++ b/lib/libc/powerpc64/gen/flt_rounds.c
@@ -0,0 +1,55 @@
+/*	$NetBSD: flt_rounds.c,v 1.4.10.3 2002/03/22 20:41:53 nathanw Exp $	*/
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * 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 <machine/float.h>
+
+#ifndef _SOFT_FLOAT
+static const int map[] = {
+	1,	/* round to nearest */
+	0,	/* round to zero */
+	2,	/* round to positive infinity */
+	3	/* round to negative infinity */
+};
+
+int
+__flt_rounds()
+{
+	uint64_t fpscr;
+
+	__asm__ __volatile("mffs %0" : "=f"(fpscr));
+	return map[(fpscr & 0x03)];
+}
+#endif
diff --git a/lib/libc/powerpc64/gen/fpgetmask.c b/lib/libc/powerpc64/gen/fpgetmask.c
new file mode 100644
index 000000000000..6817a32bdc65
--- /dev/null
+++ b/lib/libc/powerpc64/gen/fpgetmask.c
@@ -0,0 +1,47 @@
+/*	$NetBSD: fpgetmask.c,v 1.3 2002/01/13 21:45:47 thorpej Exp $	*/
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dan Winship.
+ *
+ * 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 <sys/types.h>
+#include <ieeefp.h>
+
+#ifndef _SOFT_FLOAT
+fp_except_t
+fpgetmask()
+{
+	u_int64_t fpscr;
+
+	__asm__("mffs %0" : "=f"(fpscr));
+	return ((fp_except_t)((fpscr >> 3) & 0x1f));
+}
+#endif
diff --git a/lib/libc/powerpc64/gen/fpgetround.c b/lib/libc/powerpc64/gen/fpgetround.c
new file mode 100644
index 000000000000..b135807b613f
--- /dev/null
+++ b/lib/libc/powerpc64/gen/fpgetround.c
@@ -0,0 +1,47 @@
+/*	$NetBSD: fpgetround.c,v 1.3 2002/01/13 21:45:47 thorpej Exp $	*/
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dan Winship.
+ *
+ * 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 <sys/types.h>
+#include <ieeefp.h>
+
+#ifndef _SOFT_FLOAT
+fp_rnd_t
+fpgetround()
+{
+	u_int64_t fpscr;
+
+	__asm__("mffs %0" : "=f"(fpscr));
+	return ((fp_rnd_t)(fpscr & 0x3));
+}
+#endif
diff --git a/lib/libc/powerpc64/gen/fpgetsticky.c b/lib/libc/powerpc64/gen/fpgetsticky.c
new file mode 100644
index 000000000000..3512c97f8cf9
--- /dev/null
+++ b/lib/libc/powerpc64/gen/fpgetsticky.c
@@ -0,0 +1,49 @@
+/*	$NetBSD: fpgetsticky.c,v 1.3 2002/01/13 21:45:48 thorpej Exp $	*/
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ * 
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dan Winship.
+ * 
+ * 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 "namespace.h"
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifndef _SOFT_FLOAT
+fp_except_t
+fpgetsticky()
+{
+	u_int64_t fpscr;
+
+	__asm__ __volatile("mffs %0" : "=f"(fpscr));
+	return ((fp_except_t)((fpscr >> 25) & 0x1f));
+}
+#endif
diff --git a/lib/libc/powerpc64/gen/fpsetmask.c b/lib/libc/powerpc64/gen/fpsetmask.c
new file mode 100644
index 000000000000..4170b385e9e4
--- /dev/null
+++ b/lib/libc/powerpc64/gen/fpsetmask.c
@@ -0,0 +1,51 @@
+/*	$NetBSD: fpsetmask.c,v 1.3 2002/01/13 21:45:48 thorpej Exp $	*/
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dan Winship.
+ *
+ * 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 <sys/types.h>
+#include <ieeefp.h>
+
+#ifndef _SOFT_FLOAT
+fp_except_t
+fpsetmask(fp_except_t mask)
+{
+	u_int64_t fpscr;
+	fp_except_t old;
+
+	__asm__("mffs %0" : "=f"(fpscr));
+	old = (fp_except_t)((fpscr >> 3) & 0x1f);
+	fpscr = (fpscr & 0xffffff07) | ((mask & 0x1f) << 3);
+	__asm__ __volatile("mtfsf 0xff,%0" :: "f"(fpscr));
+	return (old);
+}
+#endif
diff --git a/lib/libc/powerpc64/gen/fpsetround.c b/lib/libc/powerpc64/gen/fpsetround.c
new file mode 100644
index 000000000000..2a70fd781474
--- /dev/null
+++ b/lib/libc/powerpc64/gen/fpsetround.c
@@ -0,0 +1,51 @@
+/*	$NetBSD: fpsetround.c,v 1.3 2002/01/13 21:45:48 thorpej Exp $	*/
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dan Winship.
+ *
+ * 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 <sys/types.h>
+#include <ieeefp.h>
+
+#ifndef _SOFT_FLOAT
+fp_rnd_t
+fpsetround(fp_rnd_t rnd_dir)
+{
+	u_int64_t fpscr;
+	fp_rnd_t old;
+
+	__asm__ __volatile("mffs %0" : "=f"(fpscr));
+	old = (fp_rnd_t)(fpscr & 0x3);
+	fpscr = (fpscr & 0xfffffffc) | rnd_dir;
+	__asm__ __volatile("mtfsf 0xff,%0" :: "f"(fpscr));
+	return (old);
+}
+#endif
diff --git a/lib/libc/powerpc64/gen/infinity.c b/lib/libc/powerpc64/gen/infinity.c
new file mode 100644
index 000000000000..6e11371e6eb3
--- /dev/null
+++ b/lib/libc/powerpc64/gen/infinity.c
@@ -0,0 +1,28 @@
+#include <sys/cdefs.h>
+#if 0
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: infinity.c,v 1.2 1998/11/14 19:31:02 christos Exp $");
+#endif /* LIBC_SCCS and not lint */
+#endif
+/* infinity.c */
+
+#include <math.h>
+
+/* bytes for +Infinity on powerpc */
+const union __infinity_un __infinity = {
+#if BYTE_ORDER == BIG_ENDIAN
+	{ 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 }
+#else
+	{ 0, 0, 0, 0, 0, 0, 0xf0, 0x7f }
+#endif
+};
+
+/* bytes for NaN */
+const union __nan_un __nan = {
+#if BYTE_ORDER == BIG_ENDIAN
+	{0xff, 0xc0, 0, 0}
+#else
+	{ 0, 0, 0xc0, 0xff }
+#endif
+};
+
diff --git a/lib/libc/powerpc64/gen/makecontext.c b/lib/libc/powerpc64/gen/makecontext.c
new file mode 100644
index 000000000000..9e3a976fa1bd
--- /dev/null
+++ b/lib/libc/powerpc64/gen/makecontext.c
@@ -0,0 +1,127 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2004 Suleiman Souhlal
+ * 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/param.h>
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <ucontext.h>
+
+__weak_reference(__makecontext, makecontext);
+
+void _ctx_done(ucontext_t *ucp);
+void _ctx_start(void);
+
+void
+_ctx_done(ucontext_t *ucp)
+{
+	if (ucp->uc_link == NULL)
+		exit(0);
+	else {
+		/* invalidate context */
+		ucp->uc_mcontext.mc_len = 0;
+
+		setcontext((const ucontext_t *)ucp->uc_link);
+
+		abort(); /* should never return from above call */
+	}
+}
+
+void
+__makecontext(ucontext_t *ucp, void (*start)(void), int argc, ...)
+{
+	mcontext_t *mc;
+	char *sp;
+	va_list ap;
+	int i, regargs, stackargs;
+
+	/* Sanity checks */
+	if ((ucp == NULL) || (argc < 0)
+	    || (ucp->uc_stack.ss_sp == NULL)
+	    || (ucp->uc_stack.ss_size < MINSIGSTKSZ)) {
+		/* invalidate context */
+		ucp->uc_mcontext.mc_len = 0;
+		return;
+	}
+
+	/*
+	 * The stack must have space for the frame pointer, saved
+	 * link register, overflow arguments, and be 16-byte
+	 * aligned.
+	 */
+	stackargs = (argc > 8) ? argc - 8 : 0;
+	sp = (char *) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size
+		- sizeof(uintptr_t)*(stackargs + 6);
+	sp = (char *)((uintptr_t)sp & ~0x1f);
+
+	mc = &ucp->uc_mcontext;
+
+	/*
+	 * Up to 8 register args. Assumes all args are 64-bit and
+	 * integer only. Not sure how to cater for floating point.
+	 */
+	regargs = (argc > 8) ? 8 : argc;
+	va_start(ap, argc);
+	for (i = 0; i < regargs; i++)
+		mc->mc_gpr[3 + i] = va_arg(ap, uint64_t);
+
+	/*
+	 * Overflow args go onto the stack
+	 */
+	if (argc > 8) {
+		uint64_t *argp;
+
+		/* Skip past frame pointer and saved LR */
+#if !defined(_CALL_ELF) || _CALL_ELF == 1
+		argp = (uint64_t *)sp + 6;
+#else
+		argp = (uint64_t *)sp + 4;
+#endif
+
+		for (i = 0; i < stackargs; i++)
+			*argp++ = va_arg(ap, uint64_t);
+	}
+	va_end(ap);
+
+	/*
+	 * Use caller-saved regs 14/15 to hold params that _ctx_start
+	 * will use to invoke the user-supplied func
+	 */
+#if !defined(_CALL_ELF) || _CALL_ELF == 1
+	/* Cast to ensure this is treated as a function descriptor. */
+	mc->mc_srr0 = *(uintptr_t *)_ctx_start;
+#else
+	mc->mc_srr0 = (uintptr_t) _ctx_start;
+	mc->mc_gpr[12] = (uintptr_t) _ctx_start;/* required for prologue */
+#endif
+	mc->mc_gpr[1] = (uintptr_t) sp;		/* new stack pointer */
+	mc->mc_gpr[14] = (uintptr_t) start;	/* r14 <- start */
+	mc->mc_gpr[15] = (uintptr_t) ucp;	/* r15 <- ucp */
+}
diff --git a/lib/libc/powerpc64/gen/setjmp.S b/lib/libc/powerpc64/gen/setjmp.S
new file mode 100644
index 000000000000..7cf48d63ec82
--- /dev/null
+++ b/lib/libc/powerpc64/gen/setjmp.S
@@ -0,0 +1,174 @@
+/*-
+ * Copyright (c) 2002 Peter Grehan.
+ * 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.
+ */
+/*      $NetBSD: setjmp.S,v 1.3 1998/10/03 12:30:38 tsubai Exp $        */
+
+#include <machine/asm.h>
+#include <sys/syscall.h>
+	
+/*
+ * C library -- setjmp, longjmp
+ *
+ *      longjmp(a,v)
+ * will generate a "return(v?v:1)" from the last call to
+ *      setjmp(a)
+ * by restoring registers from the stack.
+ * The previous signal state is restored.
+ *
+ * jmpbuf layout:
+ *     +------------+
+ *     |   unused   |
+ *     +------------+
+ *     | sig state  |
+ *     |            |
+ *     | (4 words)  |
+ *     |            |
+ *     +------------+
+ *     | saved regs |
+ *     |    ...     |
+ */
+
+ENTRY(setjmp)
+	mr	%r6,%r3
+	li	%r3,1			/* SIG_BLOCK, but doesn't matter */
+					/*            since set == NULL  */
+	li	%r4,0			/* set = NULL */
+	mr	%r5,%r6			/* &oset */
+	addi	%r5,%r5,4
+	li	%r0, SYS_sigprocmask	/*sigprocmask(SIG_BLOCK, NULL, &oset)*/
+	sc				/*assume no error       XXX */
+	mflr	%r11			/* r11 <- link reg */
+	mfcr	%r12			/* r12 <- condition reg */
+	mr	%r10,%r1		/* r10 <- stackptr */
+	mr	%r9,%r2			/*  r9 <- global ptr */
+
+	std	%r9,40 + 0*8(%r6)
+	stfd	%f14,40 + 23*8(%r6)
+	std	%r10,40 + 1*8(%r6)
+	stfd	%f15,40 + 24*8(%r6)
+	std	%r11,40 + 2*8(%r6)
+	stfd	%f16,40 + 25*8(%r6)
+	std	%r12,40 + 3*8(%r6)
+	stfd	%f17,40 + 26*8(%r6)
+	std	%r13,40 + 4*8(%r6)
+	stfd	%f18,40 + 27*8(%r6)
+	std	%r14,40 + 5*8(%r6)
+	stfd	%f19,40 + 28*8(%r6)
+	std	%r15,40 + 6*8(%r6)
+	stfd	%f20,40 + 29*8(%r6)
+	std	%r16,40 + 7*8(%r6)
+	stfd	%f21,40 + 30*8(%r6)
+	std	%r17,40 + 8*8(%r6)
+	stfd	%f22,40 + 31*8(%r6)
+	std	%r18,40 + 9*8(%r6)
+	stfd	%f23,40 + 32*8(%r6)
+	std	%r19,40 + 10*8(%r6)
+	stfd	%f24,40 + 33*8(%r6)
+	std	%r20,40 + 11*8(%r6)
+	stfd	%f25,40 + 34*8(%r6)
+	std	%r21,40 + 12*8(%r6)
+	stfd	%f26,40 + 35*8(%r6)
+	std	%r22,40 + 13*8(%r6)
+	stfd	%f27,40 + 36*8(%r6)
+	std	%r23,40 + 14*8(%r6)
+	stfd	%f28,40 + 37*8(%r6)
+	std	%r24,40 + 15*8(%r6)
+	stfd	%f29,40 + 38*8(%r6)
+	std	%r25,40 + 16*8(%r6)
+	stfd	%f30,40 + 39*8(%r6)
+	std	%r26,40 + 17*8(%r6)
+	stfd	%f31,40 + 40*8(%r6)
+	std	%r27,40 + 18*8(%r6)
+	std	%r28,40 + 19*8(%r6)
+	std	%r29,40 + 20*8(%r6)
+	std	%r30,40 + 21*8(%r6)
+	std	%r31,40 + 22*8(%r6)
+
+	/* XXX Altivec regs */
+
+	li	%r3,0			/* return (0) */
+	blr
+END(setjmp)
+
+	WEAK_REFERENCE(__longjmp, longjmp)
+ENTRY(__longjmp)
+	ld	%r9,40 + 0*8(%r3)
+	lfd	%f14,40 + 23*8(%r3)
+	ld	%r10,40 + 1*8(%r3)
+	lfd	%f15,40 + 24*8(%r3)
+	ld	%r11,40 + 2*8(%r3)
+	lfd	%f16,40 + 25*8(%r3)
+	ld	%r12,40 + 3*8(%r3)
+	lfd	%f17,40 + 26*8(%r3)
+	ld	%r14,40 + 5*8(%r3)
+	lfd	%f18,40 + 27*8(%r3)
+	ld	%r15,40 + 6*8(%r3)
+	lfd	%f19,40 + 28*8(%r3)
+	ld	%r16,40 + 7*8(%r3)
+	lfd	%f20,40 + 29*8(%r3)
+	ld	%r17,40 + 8*8(%r3)
+	lfd	%f21,40 + 30*8(%r3)
+	ld	%r18,40 + 9*8(%r3)
+	lfd	%f22,40 + 31*8(%r3)
+	ld	%r19,40 + 10*8(%r3)
+	lfd	%f23,40 + 32*8(%r3)
+	ld	%r20,40 + 11*8(%r3)
+	lfd	%f24,40 + 33*8(%r3)
+	ld	%r21,40 + 12*8(%r3)
+	lfd	%f25,40 + 34*8(%r3)
+	ld	%r22,40 + 13*8(%r3)
+	lfd	%f26,40 + 35*8(%r3)
+	ld	%r23,40 + 14*8(%r3)
+	lfd	%f27,40 + 36*8(%r3)
+	ld	%r24,40 + 15*8(%r3)
+	lfd	%f28,40 + 37*8(%r3)
+	ld	%r25,40 + 16*8(%r3)
+	lfd	%f29,40 + 38*8(%r3)
+	ld	%r26,40 + 17*8(%r3)
+	lfd	%f30,40 + 39*8(%r3)
+	ld	%r27,40 + 18*8(%r3)
+	lfd	%f31,40 + 40*8(%r3)
+	ld	%r28,40 + 19*8(%r3)
+	ld	%r29,40 + 20*8(%r3)
+	ld	%r30,40 + 21*8(%r3)
+	ld	%r31,40 + 22*8(%r3)
+	mr	%r6,%r4			/* save val param */
+	mtlr	%r11			/* r11 -> link reg */
+	mtcr	%r12			/* r12 -> condition reg */
+	mr	%r2,%r9			/* r9  -> global ptr */
+	mr	%r1,%r10		/* r10 -> stackptr */
+	mr	%r4,%r3
+	li	%r3,3			/* SIG_SETMASK */
+	addi	%r4,%r4,4		/* &set */
+	li	%r5,0			/* oset = NULL */
+	li	%r0,SYS_sigprocmask	/* sigprocmask(SIG_SET, &set, NULL) */
+	sc                              /* assume no error       XXX */
+	or.	%r3,%r6,%r6
+	bnelr
+	li	%r3,1
+	blr
+END(__longjmp)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/powerpc64/gen/signalcontext.c b/lib/libc/powerpc64/gen/signalcontext.c
new file mode 100644
index 000000000000..de0b2109bba4
--- /dev/null
+++ b/lib/libc/powerpc64/gen/signalcontext.c
@@ -0,0 +1,102 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2004 Marcel Moolenaar, Peter Grehan
+ * 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 ``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/param.h>
+#include <sys/ucontext.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <strings.h>
+
+typedef void (*handler_t)(uint32_t, uint32_t, uint32_t);
+
+/* Prototypes */
+static void ctx_wrapper(ucontext_t *ucp, handler_t func, uint32_t sig,
+			uint32_t sig_si, uint32_t sig_uc);
+
+__weak_reference(__signalcontext, signalcontext);
+
+int
+__signalcontext(ucontext_t *ucp, int sig, __sighandler_t *func)
+{
+	siginfo_t *sig_si;
+	ucontext_t *sig_uc;
+	uintptr_t sp;
+
+	/* Bail out if we don't have a valid ucontext pointer. */
+	if (ucp == NULL)
+		abort();
+
+	/*
+	 * Build a 16-byte-aligned signal frame
+	 */
+	sp = (ucp->uc_mcontext.mc_gpr[1] - sizeof(ucontext_t)) & ~15UL;
+	sig_uc = (ucontext_t *)sp;
+	bcopy(ucp, sig_uc, sizeof(*sig_uc));
+	sp = (sp - sizeof(siginfo_t)) & ~15UL;
+	sig_si = (siginfo_t *)sp;
+	bzero(sig_si, sizeof(*sig_si));
+	sig_si->si_signo = sig;
+
+	/*
+	 * Subtract 48 bytes from stack to allow for frameptr
+	 */
+	sp -= 6*sizeof(uint64_t);
+	sp &= ~15UL;
+
+	/*
+	 * Setup the ucontext of the signal handler.
+	 */
+	bzero(&ucp->uc_mcontext, sizeof(ucp->uc_mcontext));
+	ucp->uc_link = sig_uc;
+	sigdelset(&ucp->uc_sigmask, sig);
+
+	ucp->uc_mcontext.mc_vers = _MC_VERSION;
+	ucp->uc_mcontext.mc_len = sizeof(struct __mcontext);
+	ucp->uc_mcontext.mc_srr0 = (uint64_t) ctx_wrapper;
+	ucp->uc_mcontext.mc_gpr[1] = (uint64_t) sp;
+	ucp->uc_mcontext.mc_gpr[3] = (uint64_t) func;
+	ucp->uc_mcontext.mc_gpr[4] = (uint64_t) sig;
+	ucp->uc_mcontext.mc_gpr[5] = (uint64_t) sig_si;
+	ucp->uc_mcontext.mc_gpr[6] = (uint64_t) sig_uc;
+
+	return (0);
+}
+
+static void
+ctx_wrapper(ucontext_t *ucp, handler_t func, uint32_t sig, uint32_t sig_si,
+	    uint32_t sig_uc)
+{
+
+	(*func)(sig, sig_si, sig_uc);
+	if (ucp->uc_link == NULL)
+		exit(0);
+	setcontext((const ucontext_t *)ucp->uc_link);
+	/* should never get here */
+	abort();
+	/* NOTREACHED */
+}
diff --git a/lib/libc/powerpc64/gen/sigsetjmp.S b/lib/libc/powerpc64/gen/sigsetjmp.S
new file mode 100644
index 000000000000..58fa188daaa4
--- /dev/null
+++ b/lib/libc/powerpc64/gen/sigsetjmp.S
@@ -0,0 +1,181 @@
+/*-
+ * Copyright (c) 2002 Peter Grehan.
+ * 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.
+ */
+/*      $NetBSD: sigsetjmp.S,v 1.4 1998/10/03 12:30:38 tsubai Exp $     */
+
+#include <machine/asm.h>
+/*
+ * C library -- sigsetjmp, siglongjmp
+ *
+ *      siglongjmp(a,v)
+ * will generate a "return(v?v:1)" from the last call to
+ *      sigsetjmp(a, savemask)
+ * by restoring registers from the stack.
+ * The previous signal state is restored if savemask is non-zero
+ *
+ * jmpbuf layout:
+ *     +------------+
+ *     |  savemask  |
+ *     +------------+
+ *     | sig state  |
+ *     |            |
+ *     | (4 words)  |
+ *     |            |
+ *     +------------+
+ *     | saved regs |
+ *     |    ...     |
+ */
+
+	
+#include <sys/syscall.h>
+
+ENTRY(sigsetjmp)
+	mr	%r6,%r3
+	stw	%r4,0(%r3)
+	or.	%r7,%r4,%r4
+	beq	1f
+	li	%r3,1			/* SIG_BLOCK, but doesn't matter */
+					/*            since set == NULL  */
+	li	%r4,0			/* set = NULL */
+	mr	%r5,%r6			/* &oset */
+	addi	%r5,%r5,4
+	li	%r0, SYS_sigprocmask   /* sigprocmask(SIG_BLOCK, NULL, &oset)*/
+	sc				/* assume no error       XXX */
+1:
+	mflr	%r11
+	mfcr	%r12
+	mr	%r10,%r1
+	mr	%r9,%r2
+
+	std	%r9,40 + 0*8(%r6)
+	stfd	%f14,40 + 23*8(%r6)
+	std	%r10,40 + 1*8(%r6)
+	stfd	%f15,40 + 24*8(%r6)
+	std	%r11,40 + 2*8(%r6)
+	stfd	%f16,40 + 25*8(%r6)
+	std	%r12,40 + 3*8(%r6)
+	stfd	%f17,40 + 26*8(%r6)
+	std	%r13,40 + 4*8(%r6)
+	stfd	%f18,40 + 27*8(%r6)
+	std	%r14,40 + 5*8(%r6)
+	stfd	%f19,40 + 28*8(%r6)
+	std	%r15,40 + 6*8(%r6)
+	stfd	%f20,40 + 29*8(%r6)
+	std	%r16,40 + 7*8(%r6)
+	stfd	%f21,40 + 30*8(%r6)
+	std	%r17,40 + 8*8(%r6)
+	stfd	%f22,40 + 31*8(%r6)
+	std	%r18,40 + 9*8(%r6)
+	stfd	%f23,40 + 32*8(%r6)
+	std	%r19,40 + 10*8(%r6)
+	stfd	%f24,40 + 33*8(%r6)
+	std	%r20,40 + 11*8(%r6)
+	stfd	%f25,40 + 34*8(%r6)
+	std	%r21,40 + 12*8(%r6)
+	stfd	%f26,40 + 35*8(%r6)
+	std	%r22,40 + 13*8(%r6)
+	stfd	%f27,40 + 36*8(%r6)
+	std	%r23,40 + 14*8(%r6)
+	stfd	%f28,40 + 37*8(%r6)
+	std	%r24,40 + 15*8(%r6)
+	stfd	%f29,40 + 38*8(%r6)
+	std	%r25,40 + 16*8(%r6)
+	stfd	%f30,40 + 39*8(%r6)
+	std	%r26,40 + 17*8(%r6)
+	stfd	%f31,40 + 40*8(%r6)
+	std	%r27,40 + 18*8(%r6)
+	std	%r28,40 + 19*8(%r6)
+	std	%r29,40 + 20*8(%r6)
+	std	%r30,40 + 21*8(%r6)
+	std	%r31,40 + 22*8(%r6)
+
+	li	%r3,0
+	blr
+END(sigsetjmp)
+
+ENTRY(siglongjmp)
+	ld	%r9,40 + 0*8(%r3)
+	lfd	%f14,40 + 23*8(%r3)
+	ld	%r10,40 + 1*8(%r3)
+	lfd	%f15,40 + 24*8(%r3)
+	ld	%r11,40 + 2*8(%r3)
+	lfd	%f16,40 + 25*8(%r3)
+	ld	%r12,40 + 3*8(%r3)
+	lfd	%f17,40 + 26*8(%r3)
+	ld	%r14,40 + 5*8(%r3)
+	lfd	%f18,40 + 27*8(%r3)
+	ld	%r15,40 + 6*8(%r3)
+	lfd	%f19,40 + 28*8(%r3)
+	ld	%r16,40 + 7*8(%r3)
+	lfd	%f20,40 + 29*8(%r3)
+	ld	%r17,40 + 8*8(%r3)
+	lfd	%f21,40 + 30*8(%r3)
+	ld	%r18,40 + 9*8(%r3)
+	lfd	%f22,40 + 31*8(%r3)
+	ld	%r19,40 + 10*8(%r3)
+	lfd	%f23,40 + 32*8(%r3)
+	ld	%r20,40 + 11*8(%r3)
+	lfd	%f24,40 + 33*8(%r3)
+	ld	%r21,40 + 12*8(%r3)
+	lfd	%f25,40 + 34*8(%r3)
+	ld	%r22,40 + 13*8(%r3)
+	lfd	%f26,40 + 35*8(%r3)
+	ld	%r23,40 + 14*8(%r3)
+	lfd	%f27,40 + 36*8(%r3)
+	ld	%r24,40 + 15*8(%r3)
+	lfd	%f28,40 + 37*8(%r3)
+	ld	%r25,40 + 16*8(%r3)
+	lfd	%f29,40 + 38*8(%r3)
+	ld	%r26,40 + 17*8(%r3)
+	lfd	%f30,40 + 39*8(%r3)
+	ld	%r27,40 + 18*8(%r3)
+	lfd	%f31,40 + 40*8(%r3)
+	ld	%r28,40 + 19*8(%r3)
+	ld	%r29,40 + 20*8(%r3)
+	ld	%r30,40 + 21*8(%r3)
+	ld	%r31,40 + 22*8(%r3)
+
+	lwz	%r7,0(%r3)
+	mr	%r6,%r4
+	mtlr	%r11
+	mtcr	%r12
+	mr	%r2,%r9
+	mr	%r1,%r10
+	or.	%r7,%r7,%r7
+	beq	1f
+	mr	%r4,%r3
+	li	%r3,3			/* SIG_SETMASK */
+	addi	%r4,%r4,4		/* &set */
+	li	%r5,0			/* oset = NULL */
+	li	%r0,SYS_sigprocmask	/* sigprocmask(SIG_SET, &set, NULL) */
+	sc				/* assume no error       XXX */
+1:
+	or.	%r3,%r6,%r6
+	bnelr
+	li	%r3,1
+	blr
+END(siglongjmp)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/powerpc64/gen/syncicache.c b/lib/libc/powerpc64/gen/syncicache.c
new file mode 100644
index 000000000000..7885a36bd1d1
--- /dev/null
+++ b/lib/libc/powerpc64/gen/syncicache.c
@@ -0,0 +1,100 @@
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
+ * Copyright (C) 1995-1997, 1999 Wolfgang Solfrank.
+ * Copyright (C) 1995-1997, 1999 TooLs GmbH.
+ * 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 TooLs GmbH.
+ * 4. The name of TooLs GmbH may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
+ *
+ * $NetBSD: syncicache.c,v 1.2 1999/05/05 12:36:40 tsubai Exp $
+ */
+
+#include <sys/param.h>
+#if	defined(_KERNEL) || defined(_STANDALONE)
+#include <sys/time.h>
+#include <sys/proc.h>
+#include <vm/vm.h>
+#endif
+#include <sys/sysctl.h>
+
+#include <machine/cpu.h>
+#include <machine/md_var.h>
+
+#ifdef _STANDALONE
+int cacheline_size = 32;
+#endif
+
+#if	!defined(_KERNEL) && !defined(_STANDALONE)
+#include <stdlib.h>
+
+int cacheline_size = 0;
+
+static void getcachelinesize(void);
+
+static void
+getcachelinesize()
+{
+	static int	cachemib[] = { CTL_MACHDEP, CPU_CACHELINE };
+	long		clen;
+
+	clen = sizeof(cacheline_size);
+
+	if (sysctl(cachemib, nitems(cachemib), &cacheline_size, &clen,
+	    NULL, 0) < 0 || !cacheline_size) {
+		abort();
+	}
+}
+#endif
+
+void
+__syncicache(void *from, int len)
+{
+	off_t	l, off;
+	char	*p;
+
+#if	!defined(_KERNEL) && !defined(_STANDALONE)
+	if (!cacheline_size)
+		getcachelinesize();
+#endif	
+
+	off = (uintptr_t)from & (cacheline_size - 1);
+	l = len += off;
+	p = (char *)from - off;
+
+	do {
+		__asm __volatile ("dcbst 0,%0" :: "r"(p));
+		p += cacheline_size;
+	} while ((l -= cacheline_size) > 0);
+	__asm __volatile ("sync");
+	p = (char *)from - off;
+	do {
+		__asm __volatile ("icbi 0,%0" :: "r"(p));
+		p += cacheline_size;
+	} while ((len -= cacheline_size) > 0);
+	__asm __volatile ("sync; isync");
+}
+