22 files changed, 1709 insertions, 0 deletions

diff --git a/lib/libc/arm/gen/Makefile.inc b/lib/libc/arm/gen/Makefile.inc
new file mode 100644
index 0000000000000..05f3e95889a57
--- /dev/null
+++ b/lib/libc/arm/gen/Makefile.inc
@@ -0,0 +1,13 @@
+#	@(#)Makefile.inc	8.1 (Berkeley) 6/4/93
+# $FreeBSD$
+
+SRCS+=	_ctx_start.S _setjmp.S _set_tp.c alloca.S fabs.c \
+	infinity.c ldexp.c makecontext.c \
+	__aeabi_read_tp.S setjmp.S signalcontext.c sigsetjmp.S flt_rounds.c \
+	arm_initfini.c \
+	getcontextx.c
+
+.if ${MACHINE_ARCH:Marmv[67]*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "")
+SRCS+=	fpgetmask_vfp.c fpgetround_vfp.c fpgetsticky_vfp.c fpsetmask_vfp.c \
+	fpsetround_vfp.c fpsetsticky_vfp.c
+.endif
diff --git a/lib/libc/arm/gen/__aeabi_read_tp.S b/lib/libc/arm/gen/__aeabi_read_tp.S
new file mode 100644
index 0000000000000..224d6a632185e
--- /dev/null
+++ b/lib/libc/arm/gen/__aeabi_read_tp.S
@@ -0,0 +1,48 @@
+/*-
+ * Copyright (c) 2012 Oleksandr Tymoshenko
+ * Copyright (c) 2012 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include <machine/sysarch.h>
+
+ENTRY(__aeabi_read_tp)
+#ifdef ARM_TP_ADDRESS
+	ldr	r0, .Larm_tp_address
+	ldr	r0, [r0]
+#else
+	mrc	p15, 0, r0, c13, c0, 3
+#endif
+	RET
+END(__aeabi_read_tp)
+
+#ifdef ARM_TP_ADDRESS
+.Larm_tp_address:
+	.word ARM_TP_ADDRESS
+#endif
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/arm/gen/_ctx_start.S b/lib/libc/arm/gen/_ctx_start.S
new file mode 100644
index 0000000000000..faedfb5c6443c
--- /dev/null
+++ b/lib/libc/arm/gen/_ctx_start.S
@@ -0,0 +1,12 @@
+#include <machine/asm.h>
+
+.ident	"$FreeBSD$"
+ENTRY(_ctx_start)
+	mov	lr, pc
+	mov	pc, r4
+	mov	r0, r5
+	bl	_C_LABEL(ctx_done)
+	bl	_C_LABEL(abort)
+END(_ctx_start)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/arm/gen/_set_tp.c b/lib/libc/arm/gen/_set_tp.c
new file mode 100644
index 0000000000000..d0801d7444ba3
--- /dev/null
+++ b/lib/libc/arm/gen/_set_tp.c
@@ -0,0 +1,46 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2004 Doug Rabson
+ * 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.
+ *
+ *	$FreeBSD$
+ */
+
+#include <string.h>
+#include <sys/types.h>
+
+#include <machine/sysarch.h>
+#include "libc_private.h"
+
+void
+_set_tp(void *tp)
+{
+
+#ifdef ARM_TP_ADDRESS
+	*((struct tcb **)ARM_TP_ADDRESS) = tp;
+#else
+	sysarch(ARM_SET_TP, tp);
+#endif
+}
diff --git a/lib/libc/arm/gen/_setjmp.S b/lib/libc/arm/gen/_setjmp.S
new file mode 100644
index 0000000000000..268a43ed6ed38
--- /dev/null
+++ b/lib/libc/arm/gen/_setjmp.S
@@ -0,0 +1,138 @@
+/*	$NetBSD: _setjmp.S,v 1.12 2013/04/19 13:45:45 matt Exp $	*/
+
+/*
+ * Copyright (c) 1997 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
+ * 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 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.
+ */
+
+#if !defined(__SOFTFP__) && !defined(__VFP_FP__) && !defined(__ARM_PCS)
+#error FPA is not supported anymore
+#endif
+
+#if !defined(_STANDALONE)
+	.fpu	vfp
+#endif
+
+#include <machine/asm.h>
+#include <machine/setjmp.h>
+
+__FBSDID("$FreeBSD$");
+
+/*
+ * 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.
+ *
+ * Note: r0 is the return value
+ *       r1-r3,ip are scratch registers in functions
+ */
+
+ENTRY(_setjmp)
+	ldr	r1, .L_setjmp_magic
+
+#if !defined(_STANDALONE) && __ARM_ARCH >= 6
+	add	r2, r0, #(_JB_REG_D8 * 4)
+	vstmia	r2, {d8-d15}
+	vmrs	r2, fpscr
+	str	r2, [r0, #(_JB_REG_FPSCR * 4)]
+#endif /* !_STANDALONE && __ARM_ARCH >= 6 */
+
+	str	r1, [r0]
+
+	add	r0, r0, #(_JB_REG_R4 * 4)
+	/* Store integer registers */
+#ifndef __thumb__
+        stmia	r0, {r4-r14}
+#else
+	stmia	r0, {r4-r12}
+	str	r13, [r0, #((_JB_REG_R13 - _JB_REG_R4) * 4)]
+	str	r14, [r0, #((_JB_REG_R14 - _JB_REG_R4) * 4)]
+#endif
+
+        mov	r0, #0x00000000
+	RET
+END(_setjmp)
+
+.L_setjmp_magic:
+	.word	_JB_MAGIC__SETJMP
+
+WEAK_ALIAS(___longjmp, _longjmp)
+ENTRY(_longjmp)
+	ldr	r2, [r0]			/* get magic from jmp_buf */
+	ldr	ip, .L_setjmp_magic		/* load magic */
+	teq	ip, r2				/* magic correct? */
+	bne	botch				/*   no, botch */
+
+#if !defined(_STANDALONE) && __ARM_ARCH >= 6
+	add	ip, r0, #(_JB_REG_D8 * 4)
+	vldmia	ip, {d8-d15}
+	ldr	ip, [r0, #(_JB_REG_FPSCR * 4)]
+	vmsr	fpscr, ip
+#endif /* !_STANDALONE && __ARM_ARCH >= 6 */
+
+	add	r0, r0, #(_JB_REG_R4 * 4)
+       	/* Restore integer registers */
+#ifndef __thumb__
+        ldmia	r0, {r4-r14}
+#else
+	ldmia	r0, {r4-r12}
+	ldr	r13, [r0, #((_JB_REG_R13 - _JB_REG_R4) * 4)]
+	ldr	r14, [r0, #((_JB_REG_R14 - _JB_REG_R4) * 4)]
+#endif
+
+	/* Validate sp and r14 */
+	teq	sp, #0
+	it	ne
+	teqne	r14, #0
+	it	eq
+	beq	botch
+
+	/* Set return value */
+	movs	r0, r1
+	it	eq
+	moveq	r0, #0x00000001
+	RET
+
+	/* validation failed, die die die. */
+botch:
+#if !defined(_STANDALONE)
+	bl	PIC_SYM(_C_LABEL(longjmperror), PLT)
+	bl	PIC_SYM(_C_LABEL(abort), PLT)
+1:	b	1b		/* Cannot get here */
+#else
+	b	.
+#endif
+END(_longjmp)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/arm/gen/alloca.S b/lib/libc/arm/gen/alloca.S
new file mode 100644
index 0000000000000..2539b7a80c976
--- /dev/null
+++ b/lib/libc/arm/gen/alloca.S
@@ -0,0 +1,48 @@
+/*	$NetBSD: alloca.S,v 1.3 2003/04/05 23:08:51 bjh21 Exp $	*/
+
+/*
+ * Copyright (c) 1995 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
+ * 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 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.
+ */
+
+/* like alloc, but automatic automatic free in return */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+ENTRY(alloca)
+	add	r0, r0, #0x00000007	/* round up to next 8 byte alignment */
+	bic	r0, r0, #0x00000007
+	sub	sp, sp, r0		/* Adjust the stack pointer */
+	mov	r0, sp			/* r0 = base of new space */
+	RET
+END(alloca)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/arm/gen/arm_initfini.c b/lib/libc/arm/gen/arm_initfini.c
new file mode 100644
index 0000000000000..4dabe6743c9f2
--- /dev/null
+++ b/lib/libc/arm/gen/arm_initfini.c
@@ -0,0 +1,80 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-NetBSD
+ *
+ * Copyright (c) 2013 The NetBSD Foundation, Inc.
+ * Copyright (c) 2013 Andrew Turner
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Matt Thomas of 3am Software Foundry.
+ *
+ * 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.
+ * 
+ * Bases on NetBSD lib/libc/arch/arm/misc/arm_initfini.c
+ * $NetBSD: arm_initfini.c,v 1.2 2013/01/31 06:47:55 matt Exp $
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * To properly implement setjmp/longjmp for the ARM AAPCS ABI, it has to be
+ * aware of whether there is a FPU is present or not.  Regardless of whether
+ * the hard-float ABI is being used, setjmp needs to save D8-D15.  But it can
+ * only do this if those instructions won't cause an exception.
+ */
+
+#include <sys/param.h>
+#include <sys/sysctl.h>
+
+#include <stdbool.h>
+#include <stddef.h>
+
+extern int __sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp,
+    void *newp, size_t newlen);
+
+int _libc_arm_fpu_present;
+static bool _libc_aapcs_initialized;
+
+void	_libc_aapcs_init(void) __attribute__((__constructor__, __used__));
+
+void
+_libc_aapcs_init(void)
+{
+	int mib[2];
+	size_t len;
+
+	if (_libc_aapcs_initialized)
+		return;
+
+	mib[0] = CTL_HW;
+	mib[1] = HW_FLOATINGPT;
+
+	len = sizeof(_libc_arm_fpu_present);
+	if (__sysctl(mib, 2, &_libc_arm_fpu_present, &len, NULL, 0) == -1 ||
+	    len != sizeof(_libc_arm_fpu_present)) {
+		/* sysctl failed, assume no vfp */
+		_libc_arm_fpu_present = 0;
+	}
+
+	_libc_aapcs_initialized = true;
+}
diff --git a/lib/libc/arm/gen/divsi3.S b/lib/libc/arm/gen/divsi3.S
new file mode 100644
index 0000000000000..fac0663cdb2ad
--- /dev/null
+++ b/lib/libc/arm/gen/divsi3.S
@@ -0,0 +1,393 @@
+/*	$NetBSD: divsi3.S,v 1.4 2003/04/05 23:27:15 bjh21 Exp $	*/
+
+/*
+ * 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>
+__FBSDID("$FreeBSD$");
+
+/* 
+ * stack is aligned as there's a possibility of branching to L_overflow
+ * which makes a C call
+ */
+
+ENTRY(__umodsi3)
+	stmfd	sp!, {lr}
+	sub	sp, sp, #4	/* align stack */
+	bl	.L_udivide
+	add	sp, sp, #4	/* unalign stack */
+	mov	r0, r1
+	ldmfd	sp!, {pc}
+END(__umodsi3)
+
+ENTRY(__modsi3)
+	stmfd	sp!, {lr}
+	sub	sp, sp, #4	/* align stack */
+	bl	.L_divide
+	add	sp, sp, #4	/* unalign stack */
+	mov	r0, r1
+	ldmfd	sp!, {pc}
+
+.L_overflow:
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+	mov	r0, #8			/* SIGFPE */
+	bl	PIC_SYM(_C_LABEL(raise), PLT)	/* raise it */
+	mov	r0, #0
+#else
+	/* XXX should cause a fatal error */
+	mvn	r0, #0
+#endif
+	RET
+END(__modsi3)
+
+ENTRY(__udivsi3)
+.L_udivide:				/* r0 = r0 / r1; r1 = r0 % r1 */
+	eor     r0, r1, r0 
+	eor     r1, r0, r1 
+	eor     r0, r1, r0 
+					/* r0 = r1 / r0; r1 = r1 % r0 */
+	cmp	r0, #1
+	bcc	.L_overflow
+	beq	.L_divide_l0
+	mov	ip, #0
+	movs	r1, r1
+	bpl	.L_divide_l1
+	orr	ip, ip, #0x20000000	/* ip bit 0x20000000 = -ve r1 */
+	movs	r1, r1, lsr #1
+	orrcs	ip, ip, #0x10000000	/* ip bit 0x10000000 = bit 0 of r1 */
+	b	.L_divide_l1
+
+.L_divide_l0:				/* r0 == 1 */
+	mov	r0, r1
+	mov	r1, #0
+	RET
+END(__udivsi3)
+
+ENTRY(__divsi3)
+.L_divide:				/* r0 = r0 / r1; r1 = r0 % r1 */
+	eor     r0, r1, r0 
+	eor     r1, r0, r1 
+	eor     r0, r1, r0 
+					/* r0 = r1 / r0; r1 = r1 % r0 */
+	cmp	r0, #1
+	bcc	.L_overflow
+	beq	.L_divide_l0
+	ands	ip, r0, #0x80000000
+	rsbmi	r0, r0, #0
+	ands	r2, r1, #0x80000000
+	eor	ip, ip, r2
+	rsbmi	r1, r1, #0
+	orr	ip, r2, ip, lsr #1	/* ip bit 0x40000000 = -ve division */
+					/* ip bit 0x80000000 = -ve remainder */
+
+.L_divide_l1:
+	mov	r2, #1
+	mov	r3, #0
+
+	/*
+	 * If the highest bit of the dividend is set, we have to be
+	 * careful when shifting the divisor. Test this. 
+	 */
+	movs	r1,r1
+	bpl	.L_old_code
+
+	/*
+	 * At this point, the highest bit of r1 is known to be set.
+	 * We abuse this below in the tst instructions.
+	 */
+	tst	r1, r0 /*, lsl #0 */
+	bmi	.L_divide_b1
+	tst	r1, r0, lsl #1
+	bmi	.L_divide_b2
+	tst	r1, r0, lsl #2
+	bmi	.L_divide_b3
+	tst	r1, r0, lsl #3
+	bmi	.L_divide_b4
+	tst	r1, r0, lsl #4
+	bmi	.L_divide_b5
+	tst	r1, r0, lsl #5
+	bmi	.L_divide_b6
+	tst	r1, r0, lsl #6
+	bmi	.L_divide_b7
+	tst	r1, r0, lsl #7
+	bmi	.L_divide_b8
+	tst	r1, r0, lsl #8
+	bmi	.L_divide_b9
+	tst	r1, r0, lsl #9
+	bmi	.L_divide_b10
+	tst	r1, r0, lsl #10
+	bmi	.L_divide_b11
+	tst	r1, r0, lsl #11
+	bmi	.L_divide_b12
+	tst	r1, r0, lsl #12
+	bmi	.L_divide_b13
+	tst	r1, r0, lsl #13
+	bmi	.L_divide_b14
+	tst	r1, r0, lsl #14
+	bmi	.L_divide_b15
+	tst	r1, r0, lsl #15
+	bmi	.L_divide_b16
+	tst	r1, r0, lsl #16
+	bmi	.L_divide_b17
+	tst	r1, r0, lsl #17
+	bmi	.L_divide_b18
+	tst	r1, r0, lsl #18
+	bmi	.L_divide_b19
+	tst	r1, r0, lsl #19
+	bmi	.L_divide_b20
+	tst	r1, r0, lsl #20
+	bmi	.L_divide_b21
+	tst	r1, r0, lsl #21
+	bmi	.L_divide_b22
+	tst	r1, r0, lsl #22
+	bmi	.L_divide_b23
+	tst	r1, r0, lsl #23
+	bmi	.L_divide_b24
+	tst	r1, r0, lsl #24
+	bmi	.L_divide_b25
+	tst	r1, r0, lsl #25
+	bmi	.L_divide_b26
+	tst	r1, r0, lsl #26
+	bmi	.L_divide_b27
+	tst	r1, r0, lsl #27
+	bmi	.L_divide_b28
+	tst	r1, r0, lsl #28
+	bmi	.L_divide_b29
+	tst	r1, r0, lsl #29
+	bmi	.L_divide_b30
+	tst	r1, r0, lsl #30
+	bmi	.L_divide_b31
+/*
+ * instead of:
+ *	tst	r1, r0, lsl #31
+ *	bmi	.L_divide_b32
+ */
+	b	.L_divide_b32
+
+.L_old_code:
+	cmp	r1, r0
+	bcc	.L_divide_b0
+	cmp	r1, r0, lsl #1
+	bcc	.L_divide_b1
+	cmp	r1, r0, lsl #2
+	bcc	.L_divide_b2
+	cmp	r1, r0, lsl #3
+	bcc	.L_divide_b3
+	cmp	r1, r0, lsl #4
+	bcc	.L_divide_b4
+	cmp	r1, r0, lsl #5
+	bcc	.L_divide_b5
+	cmp	r1, r0, lsl #6
+	bcc	.L_divide_b6
+	cmp	r1, r0, lsl #7
+	bcc	.L_divide_b7
+	cmp	r1, r0, lsl #8
+	bcc	.L_divide_b8
+	cmp	r1, r0, lsl #9
+	bcc	.L_divide_b9
+	cmp	r1, r0, lsl #10
+	bcc	.L_divide_b10
+	cmp	r1, r0, lsl #11
+	bcc	.L_divide_b11
+	cmp	r1, r0, lsl #12
+	bcc	.L_divide_b12
+	cmp	r1, r0, lsl #13
+	bcc	.L_divide_b13
+	cmp	r1, r0, lsl #14
+	bcc	.L_divide_b14
+	cmp	r1, r0, lsl #15
+	bcc	.L_divide_b15
+	cmp	r1, r0, lsl #16
+	bcc	.L_divide_b16
+	cmp	r1, r0, lsl #17
+	bcc	.L_divide_b17
+	cmp	r1, r0, lsl #18
+	bcc	.L_divide_b18
+	cmp	r1, r0, lsl #19
+	bcc	.L_divide_b19
+	cmp	r1, r0, lsl #20
+	bcc	.L_divide_b20
+	cmp	r1, r0, lsl #21
+	bcc	.L_divide_b21
+	cmp	r1, r0, lsl #22
+	bcc	.L_divide_b22
+	cmp	r1, r0, lsl #23
+	bcc	.L_divide_b23
+	cmp	r1, r0, lsl #24
+	bcc	.L_divide_b24
+	cmp	r1, r0, lsl #25
+	bcc	.L_divide_b25
+	cmp	r1, r0, lsl #26
+	bcc	.L_divide_b26
+	cmp	r1, r0, lsl #27
+	bcc	.L_divide_b27
+	cmp	r1, r0, lsl #28
+	bcc	.L_divide_b28
+	cmp	r1, r0, lsl #29
+	bcc	.L_divide_b29
+	cmp	r1, r0, lsl #30
+	bcc	.L_divide_b30
+.L_divide_b32:
+	cmp	r1, r0, lsl #31
+	subhs	r1, r1,r0, lsl #31
+	addhs	r3, r3,r2, lsl #31
+.L_divide_b31:
+	cmp	r1, r0, lsl #30
+	subhs	r1, r1,r0, lsl #30
+	addhs	r3, r3,r2, lsl #30
+.L_divide_b30:
+	cmp	r1, r0, lsl #29
+	subhs	r1, r1,r0, lsl #29
+	addhs	r3, r3,r2, lsl #29
+.L_divide_b29:
+	cmp	r1, r0, lsl #28
+	subhs	r1, r1,r0, lsl #28
+	addhs	r3, r3,r2, lsl #28
+.L_divide_b28:
+	cmp	r1, r0, lsl #27
+	subhs	r1, r1,r0, lsl #27
+	addhs	r3, r3,r2, lsl #27
+.L_divide_b27:
+	cmp	r1, r0, lsl #26
+	subhs	r1, r1,r0, lsl #26
+	addhs	r3, r3,r2, lsl #26
+.L_divide_b26:
+	cmp	r1, r0, lsl #25
+	subhs	r1, r1,r0, lsl #25
+	addhs	r3, r3,r2, lsl #25
+.L_divide_b25:
+	cmp	r1, r0, lsl #24
+	subhs	r1, r1,r0, lsl #24
+	addhs	r3, r3,r2, lsl #24
+.L_divide_b24:
+	cmp	r1, r0, lsl #23
+	subhs	r1, r1,r0, lsl #23
+	addhs	r3, r3,r2, lsl #23
+.L_divide_b23:
+	cmp	r1, r0, lsl #22
+	subhs	r1, r1,r0, lsl #22
+	addhs	r3, r3,r2, lsl #22
+.L_divide_b22:
+	cmp	r1, r0, lsl #21
+	subhs	r1, r1,r0, lsl #21
+	addhs	r3, r3,r2, lsl #21
+.L_divide_b21:
+	cmp	r1, r0, lsl #20
+	subhs	r1, r1,r0, lsl #20
+	addhs	r3, r3,r2, lsl #20
+.L_divide_b20:
+	cmp	r1, r0, lsl #19
+	subhs	r1, r1,r0, lsl #19
+	addhs	r3, r3,r2, lsl #19
+.L_divide_b19:
+	cmp	r1, r0, lsl #18
+	subhs	r1, r1,r0, lsl #18
+	addhs	r3, r3,r2, lsl #18
+.L_divide_b18:
+	cmp	r1, r0, lsl #17
+	subhs	r1, r1,r0, lsl #17
+	addhs	r3, r3,r2, lsl #17
+.L_divide_b17:
+	cmp	r1, r0, lsl #16
+	subhs	r1, r1,r0, lsl #16
+	addhs	r3, r3,r2, lsl #16
+.L_divide_b16:
+	cmp	r1, r0, lsl #15
+	subhs	r1, r1,r0, lsl #15
+	addhs	r3, r3,r2, lsl #15
+.L_divide_b15:
+	cmp	r1, r0, lsl #14
+	subhs	r1, r1,r0, lsl #14
+	addhs	r3, r3,r2, lsl #14
+.L_divide_b14:
+	cmp	r1, r0, lsl #13
+	subhs	r1, r1,r0, lsl #13
+	addhs	r3, r3,r2, lsl #13
+.L_divide_b13:
+	cmp	r1, r0, lsl #12
+	subhs	r1, r1,r0, lsl #12
+	addhs	r3, r3,r2, lsl #12
+.L_divide_b12:
+	cmp	r1, r0, lsl #11
+	subhs	r1, r1,r0, lsl #11
+	addhs	r3, r3,r2, lsl #11
+.L_divide_b11:
+	cmp	r1, r0, lsl #10
+	subhs	r1, r1,r0, lsl #10
+	addhs	r3, r3,r2, lsl #10
+.L_divide_b10:
+	cmp	r1, r0, lsl #9
+	subhs	r1, r1,r0, lsl #9
+	addhs	r3, r3,r2, lsl #9
+.L_divide_b9:
+	cmp	r1, r0, lsl #8
+	subhs	r1, r1,r0, lsl #8
+	addhs	r3, r3,r2, lsl #8
+.L_divide_b8:
+	cmp	r1, r0, lsl #7
+	subhs	r1, r1,r0, lsl #7
+	addhs	r3, r3,r2, lsl #7
+.L_divide_b7:
+	cmp	r1, r0, lsl #6
+	subhs	r1, r1,r0, lsl #6
+	addhs	r3, r3,r2, lsl #6
+.L_divide_b6:
+	cmp	r1, r0, lsl #5
+	subhs	r1, r1,r0, lsl #5
+	addhs	r3, r3,r2, lsl #5
+.L_divide_b5:
+	cmp	r1, r0, lsl #4
+	subhs	r1, r1,r0, lsl #4
+	addhs	r3, r3,r2, lsl #4
+.L_divide_b4:
+	cmp	r1, r0, lsl #3
+	subhs	r1, r1,r0, lsl #3
+	addhs	r3, r3,r2, lsl #3
+.L_divide_b3:
+	cmp	r1, r0, lsl #2
+	subhs	r1, r1,r0, lsl #2
+	addhs	r3, r3,r2, lsl #2
+.L_divide_b2:
+	cmp	r1, r0, lsl #1
+	subhs	r1, r1,r0, lsl #1
+	addhs	r3, r3,r2, lsl #1
+.L_divide_b1:
+	cmp	r1, r0
+	subhs	r1, r1, r0
+	addhs	r3, r3, r2
+.L_divide_b0:
+
+	tst	ip, #0x20000000
+	bne	.L_udivide_l1
+	mov	r0, r3
+	cmp	ip, #0
+	rsbmi	r1, r1, #0
+	movs	ip, ip, lsl #1
+	bicmi	r0, r0, #0x80000000	/* Fix incase we divided 0x80000000 */
+	rsbmi	r0, r0, #0
+	RET
+
+.L_udivide_l1:
+	tst	ip, #0x10000000
+	mov	r1, r1, lsl #1
+	orrne	r1, r1, #1
+	mov	r3, r3, lsl #1
+	cmp	r1, r0
+	subhs	r1, r1, r0
+	addhs	r3, r3, r2
+	mov	r0, r3
+	RET
+END(__divsi3)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/arm/gen/fabs.c b/lib/libc/arm/gen/fabs.c
new file mode 100644
index 0000000000000..6730a6746289f
--- /dev/null
+++ b/lib/libc/arm/gen/fabs.c
@@ -0,0 +1,48 @@
+/*	$NetBSD: fabs.c,v 1.2 2002/05/26 11:48:01 wiz Exp $	*/
+
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
+ * Copyright (c) 1996 Mark Brinicombe
+ *
+ * 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
+ * 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 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.
+ */
+
+/*
+ * fabs(x) returns the absolute value of x.
+ */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+double
+fabs(double x)
+{
+	if (x < 0)
+		x = -x;
+	return(x);
+}
diff --git a/lib/libc/arm/gen/flt_rounds.c b/lib/libc/arm/gen/flt_rounds.c
new file mode 100644
index 0000000000000..17ca3fb9aa907
--- /dev/null
+++ b/lib/libc/arm/gen/flt_rounds.c
@@ -0,0 +1,71 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2012 Ian Lepore <freebsd@damnhippie.dyndns.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <fenv.h>
+#include <float.h>
+
+#ifndef __ARM_PCS_VFP
+#include "softfloat-for-gcc.h"
+#include "milieu.h"
+#include "softfloat.h"
+#endif
+
+int
+__flt_rounds(void)
+{
+	int mode;
+
+#ifndef __ARM_PCS_VFP
+	/*
+	 * Translate our rounding modes to the unnamed
+	 * manifest constants required by C99 et. al.
+	 */
+	mode = __softfloat_float_rounding_mode;
+#else /* __ARM_PCS_VFP */
+	/*
+	 * Read the floating-point status and control register
+	 */
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(mode));
+	mode &= _ROUND_MASK;
+#endif /* __ARM_PCS_VFP */
+
+	switch (mode) {
+	case FE_TOWARDZERO:
+		return (0);
+	case FE_TONEAREST:
+		return (1);
+	case FE_UPWARD:
+		return (2);
+	case FE_DOWNWARD:
+		return (3);
+	}
+	return (-1);
+}
diff --git a/lib/libc/arm/gen/fpgetmask_vfp.c b/lib/libc/arm/gen/fpgetmask_vfp.c
new file mode 100644
index 0000000000000..7c4d76fc403de
--- /dev/null
+++ b/lib/libc/arm/gen/fpgetmask_vfp.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpgetmask,_fpgetmask)
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except_t
+fpgetmask(void)
+{
+	fp_except mask;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(mask));
+
+	return ((mask >> 8) & FP_X_MASK);
+}
+
diff --git a/lib/libc/arm/gen/fpgetround_vfp.c b/lib/libc/arm/gen/fpgetround_vfp.c
new file mode 100644
index 0000000000000..ed94388656499
--- /dev/null
+++ b/lib/libc/arm/gen/fpgetround_vfp.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpgetround,_fpgetround)
+#endif
+
+fp_rnd_t
+fpgetround(void)
+{
+	uint32_t fpscr;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(fpscr));
+
+	return ((fpscr >> 22) & 3);
+}
+
diff --git a/lib/libc/arm/gen/fpgetsticky_vfp.c b/lib/libc/arm/gen/fpgetsticky_vfp.c
new file mode 100644
index 0000000000000..f1e0ba5bfdb27
--- /dev/null
+++ b/lib/libc/arm/gen/fpgetsticky_vfp.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpgetsticky,_fpgetsticky)
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except
+fpgetsticky(void)
+{
+	fp_except old;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(old));
+
+	return (old & FP_X_MASK);
+}
+
diff --git a/lib/libc/arm/gen/fpsetmask_vfp.c b/lib/libc/arm/gen/fpsetmask_vfp.c
new file mode 100644
index 0000000000000..170e06d74fa94
--- /dev/null
+++ b/lib/libc/arm/gen/fpsetmask_vfp.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpsetmask,_fpsetmask)
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except_t
+fpsetmask(fp_except_t mask)
+{
+	fp_except old, new;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(old));
+	mask = (mask & FP_X_MASK) << 8;
+	new = (old & ~(FP_X_MASK << 8)) | mask;
+	__asm __volatile("vmsr fpscr, %0" : : "r"(new));
+
+	return ((old >> 8) & FP_X_MASK);
+}
+
diff --git a/lib/libc/arm/gen/fpsetround_vfp.c b/lib/libc/arm/gen/fpsetround_vfp.c
new file mode 100644
index 0000000000000..dc65a2e100571
--- /dev/null
+++ b/lib/libc/arm/gen/fpsetround_vfp.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpsetround,_fpsetround)
+#endif
+
+fp_rnd_t
+fpsetround(fp_rnd_t rnd_dir)
+{
+	uint32_t old, new;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(old));
+	new = old & ~(3 << 22);
+	new |= rnd_dir << 22;
+	__asm __volatile("vmsr fpscr, %0" : : "r"(new));
+
+	return ((old >> 22) & 3);
+}
+
diff --git a/lib/libc/arm/gen/fpsetsticky_vfp.c b/lib/libc/arm/gen/fpsetsticky_vfp.c
new file mode 100644
index 0000000000000..ddc15938417c0
--- /dev/null
+++ b/lib/libc/arm/gen/fpsetsticky_vfp.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpsetsticky,_fpsetsticky)
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except
+fpsetsticky(fp_except except)
+{
+	fp_except old, new;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(old));
+	new = old & ~(FP_X_MASK);
+	new &= ~except;
+	__asm __volatile("vmsr fpscr, %0" : : "r"(new));
+
+	return (old & except);
+}
+
diff --git a/lib/libc/arm/gen/getcontextx.c b/lib/libc/arm/gen/getcontextx.c
new file mode 100644
index 0000000000000..38a9a8abfe110
--- /dev/null
+++ b/lib/libc/arm/gen/getcontextx.c
@@ -0,0 +1,101 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2017 Michal Meloun <mmel@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <sys/ucontext.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <machine/sysarch.h>
+
+struct ucontextx {
+	ucontext_t	ucontext;
+	mcontext_vfp_t	mcontext_vfp;
+};
+
+int
+__getcontextx_size(void)
+{
+
+	return (sizeof(struct ucontextx));
+}
+
+int
+__fillcontextx2(char *ctx)
+{
+	struct ucontextx *ucxp;
+	ucontext_t	 *ucp;
+	mcontext_vfp_t	 *mvp;
+	struct arm_get_vfpstate_args vfp_arg;
+
+	ucxp = (struct ucontextx *)ctx;
+	ucp = &ucxp->ucontext;
+	mvp = &ucxp->mcontext_vfp;
+
+	vfp_arg.mc_vfp_size = sizeof(mcontext_vfp_t);
+	vfp_arg.mc_vfp = mvp;
+	if (sysarch(ARM_GET_VFPSTATE, &vfp_arg) == -1)
+			return (-1);
+	ucp->uc_mcontext.mc_vfp_size = sizeof(mcontext_vfp_t);
+	ucp->uc_mcontext.mc_vfp_ptr = mvp;
+	return (0);
+}
+
+int
+__fillcontextx(char *ctx)
+{
+	struct ucontextx *ucxp;
+
+	ucxp = (struct ucontextx *)ctx;
+	if (getcontext(&ucxp->ucontext) == -1)
+		return (-1);
+	__fillcontextx2(ctx);
+	return (0);
+}
+
+__weak_reference(__getcontextx, getcontextx);
+
+ucontext_t *
+__getcontextx(void)
+{
+	char *ctx;
+	int error;
+
+	ctx = malloc(__getcontextx_size());
+	if (ctx == NULL)
+		return (NULL);
+	if (__fillcontextx(ctx) == -1) {
+		error = errno;
+		free(ctx);
+		errno = error;
+		return (NULL);
+	}
+	return ((ucontext_t *)ctx);
+}
diff --git a/lib/libc/arm/gen/infinity.c b/lib/libc/arm/gen/infinity.c
new file mode 100644
index 0000000000000..60faf42a7ea39
--- /dev/null
+++ b/lib/libc/arm/gen/infinity.c
@@ -0,0 +1,26 @@
+/*
+ * infinity.c
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <math.h>
+
+/* bytes for +Infinity on a 387 */
+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/arm/gen/makecontext.c b/lib/libc/arm/gen/makecontext.c
new file mode 100644
index 0000000000000..421cf0dd3ed24
--- /dev/null
+++ b/lib/libc/arm/gen/makecontext.c
@@ -0,0 +1,91 @@
+/*	$NetBSD: makecontext.c,v 1.2 2003/01/18 11:06:24 thorpej Exp $	*/
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-NetBSD
+ *
+ * Copyright (c) 2001 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Klaus Klein.
+ *
+ * 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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <inttypes.h>
+#include <ucontext.h>
+
+#include <stdarg.h>
+
+extern void _ctx_start(void);
+
+void
+ctx_done(ucontext_t *ucp)
+{       
+	        
+	if (ucp->uc_link == NULL)
+		exit(0);
+	else {  
+		setcontext((const ucontext_t *)ucp->uc_link);
+		abort();
+	}                                                      
+}   
+
+__weak_reference(__makecontext, makecontext);
+
+void
+__makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
+{
+	__greg_t *gr = ucp->uc_mcontext.__gregs;
+	int i;
+	unsigned int *sp;
+	va_list ap;
+
+	/* Compute and align stack pointer. */
+	sp = (unsigned int *)
+	    (((uintptr_t)ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size -
+	      sizeof(double)) & ~7);
+	/* Allocate necessary stack space for arguments exceeding r0-3. */
+	if (argc > 4)
+		sp -= argc - 4;
+	gr[_REG_SP] = (__greg_t)sp;
+	/* Wipe out frame pointer. */
+	gr[_REG_FP] = 0;
+	/* Arrange for return via the trampoline code. */
+	gr[_REG_PC] = (__greg_t)_ctx_start;
+	gr[_REG_R4] = (__greg_t)func;
+	gr[_REG_R5] = (__greg_t)ucp;
+
+	va_start(ap, argc);
+	/* Pass up to four arguments in r0-3. */
+	for (i = 0; i < argc && i < 4; i++)
+		gr[_REG_R0 + i] = va_arg(ap, int);
+	/* Pass any additional arguments on the stack. */
+	for (argc -= i; argc > 0; argc--)
+		*sp++ = va_arg(ap, int);
+	va_end(ap);
+}
diff --git a/lib/libc/arm/gen/setjmp.S b/lib/libc/arm/gen/setjmp.S
new file mode 100644
index 0000000000000..22d6345fa2c63
--- /dev/null
+++ b/lib/libc/arm/gen/setjmp.S
@@ -0,0 +1,145 @@
+/*	$NetBSD: setjmp.S,v 1.14 2013/04/19 13:45:45 matt Exp $	*/
+
+/*
+ * Copyright (c) 1997 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
+ * 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 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.
+ */
+
+#if !defined(__SOFTFP__) && !defined(__VFP_FP__) && !defined(__ARM_PCS)
+#error FPA is not supported anymore
+#endif
+
+	.fpu	vfp
+
+#include <machine/asm.h>
+#include <machine/setjmp.h>
+
+__FBSDID("$FreeBSD$");
+
+/*
+ * 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)
+	/* Block all signals and retrieve the old signal mask */
+	stmfd	sp!, {r0, r14}
+	add	r2, r0, #(_JB_SIGMASK * 4)	/* oset */
+	mov	r1, #0x00000000			/* set */
+	mov	r0, #0x00000001			/* SIG_BLOCK */
+	bl	PIC_SYM(_C_LABEL(sigprocmask), PLT)
+	ldmfd	sp!, {r0, r14}
+
+	ldr	r1, .Lsetjmp_magic
+
+#if __ARM_ARCH >= 6
+	add	r2, r0, #(_JB_REG_D8 * 4)
+	vstmia	r2, {d8-d15}
+	vmrs	r2, fpscr
+	str	r2, [r0, #(_JB_REG_FPSCR * 4)]
+#endif
+
+	str	r1, [r0]		/* store magic */
+
+	/* Store integer registers */
+	add	r0, r0, #(_JB_REG_R4 * 4)
+#ifndef __thumb__
+        stmia	r0, {r4-r14}
+#else
+	stmia	r0, {r4-r12}
+	str	r13, [r0, #((_JB_REG_R13 - _JB_REG_R4) * 4)]
+	str	r14, [r0, #((_JB_REG_R14 - _JB_REG_R4) * 4)]
+#endif
+        mov	r0, #0x00000000
+	RET
+
+.Lsetjmp_magic:
+	.word	_JB_MAGIC_SETJMP
+END(setjmp)
+
+.weak _C_LABEL(longjmp)
+.set _C_LABEL(longjmp), _C_LABEL(__longjmp)
+ENTRY(__longjmp)
+	ldr	r2, [r0]
+	ldr	ip, .Lsetjmp_magic
+	teq	r2, ip
+	bne	.Lbotch
+
+	/* Restore the signal mask. */
+	stmfd	sp!, {r0-r2, r14}
+	mov	r2, #0x00000000
+	add	r1, r0, #(_JB_SIGMASK * 4)	/* Signal mask */
+	mov	r0, #3				/* SIG_SETMASK */
+	bl	PIC_SYM(_C_LABEL(sigprocmask), PLT)
+	ldmfd	sp!, {r0-r2, r14}
+
+#if __ARM_ARCH >= 6
+	add	ip, r0, #(_JB_REG_D8 * 4)
+	vldmia	ip, {d8-d15}
+	ldr	ip, [r0, #(_JB_REG_FPSCR * 4)]
+	vmsr	fpscr, ip
+#endif
+
+	add	r0, r0, #(_JB_REG_R4 * 4)
+	/* Restore integer registers */
+#ifndef __thumb__
+        ldmia	r0, {r4-r14}
+#else
+        ldmia	r0, {r4-r12}
+	ldr	r13, [r0, #((_JB_REG_R13 - _JB_REG_R4) * 4)]
+	ldr	r14, [r0, #((_JB_REG_R14 - _JB_REG_R4) * 4)]
+#endif
+
+	/* Validate sp and r14 */
+	teq	sp, #0
+	it	ne
+	teqne	r14, #0
+	it	eq
+	beq	.Lbotch
+
+	/* Set return value */
+	movs	r0, r1
+	it	eq
+	moveq	r0, #0x00000001
+	RET
+
+	/* validation failed, die die die. */
+.Lbotch:
+	bl	PIC_SYM(_C_LABEL(longjmperror), PLT)
+	bl	PIC_SYM(_C_LABEL(abort), PLT)
+1:	b	1b		/* Cannot get here */
+END(__longjmp)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/arm/gen/signalcontext.c b/lib/libc/arm/gen/signalcontext.c
new file mode 100644
index 0000000000000..7d17733c3c2c9
--- /dev/null
+++ b/lib/libc/arm/gen/signalcontext.c
@@ -0,0 +1,80 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2004 Olivier Houchard
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/signal.h>
+#include <sys/ucontext.h>
+
+#include <machine/frame.h>
+#include <machine/sigframe.h>
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <strings.h>
+#include <signal.h>
+
+__weak_reference(__signalcontext, signalcontext);
+
+extern void _ctx_start(void);
+
+int
+__signalcontext(ucontext_t *ucp, int sig, __sighandler_t *func)
+{
+	struct sigframe *sfp;
+	__greg_t *gr = ucp->uc_mcontext.__gregs;
+	unsigned int *sp;
+
+	sp = (unsigned int *)gr[_REG_SP];
+
+	sfp = (struct sigframe *)sp - 1;
+	
+	bzero(sfp, sizeof(*sfp));
+	bcopy(ucp, &sfp->sf_uc, sizeof(*ucp));
+	sfp->sf_si.si_signo = sig;
+
+	gr[_REG_SP] = (__greg_t)sfp;
+	/* Wipe out frame pointer. */
+	gr[_REG_FP] = 0;
+	/* Arrange for return via the trampoline code. */
+	gr[_REG_PC] = (__greg_t)_ctx_start;
+	gr[_REG_R4] = (__greg_t)func;
+	gr[_REG_R5] = (__greg_t)ucp;
+	gr[_REG_R0] = (__greg_t)sig;
+	gr[_REG_R1] = (__greg_t)&sfp->sf_si;
+	gr[_REG_R2] = (__greg_t)&sfp->sf_uc;
+
+	ucp->uc_link = &sfp->sf_uc;
+	sigdelset(&ucp->uc_sigmask, sig);
+
+	return (0);
+}
diff --git a/lib/libc/arm/gen/sigsetjmp.S b/lib/libc/arm/gen/sigsetjmp.S
new file mode 100644
index 0000000000000..236f5310a7f3b
--- /dev/null
+++ b/lib/libc/arm/gen/sigsetjmp.S
@@ -0,0 +1,70 @@
+/*	$NetBSD: sigsetjmp.S,v 1.6 2013/04/19 16:50:22 matt Exp $	*/
+
+/*
+ * Copyright (c) 1997 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
+ * 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 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>
+__FBSDID("$FreeBSD$");
+
+#include <machine/setjmp.h>
+
+/*
+ * C library -- sigsetjmp, siglongjmp
+ *
+ *	longjmp(a,v)
+ * will generate a "return(v)" from the last call to
+ *	setjmp(a, m)
+ * by restoring registers from the stack.
+ * The previous signal state is restored.
+ */
+
+ENTRY(sigsetjmp)
+	teq	r1, #0
+	beq	PIC_SYM(_C_LABEL(_setjmp), PLT)
+	b	PIC_SYM(_C_LABEL(setjmp), PLT)
+END(sigsetjmp)
+
+.L_setjmp_magic:
+	.word	_JB_MAGIC__SETJMP
+WEAK_ALIAS(__siglongjmp, siglongjmp)
+
+ENTRY(siglongjmp)
+	ldr	r2, .L_setjmp_magic		/* load magic */
+	ldr	r3, [r0]			/* get magic from jmp_buf */
+	bic	r3, r3, #(_JB_MAGIC__SETJMP ^ _JB_MAGIC__SETJMP_VFP)
+						/* ignore VFP-ness of magic */
+	teq	r2, r3				/* magic correct? */
+	beq	PIC_SYM(_C_LABEL(_longjmp), PLT)
+	b	PIC_SYM(_C_LABEL(longjmp), PLT)
+END(siglongjmp)
+
+	.section .note.GNU-stack,"",%progbits