Minimal libc for PowerPC.

Reviewed by: benno

Approved by: re (blanket)

18 files changed, 1149 insertions, 0 deletions

diff --git a/lib/libc/powerpc/gen/Makefile.inc b/lib/libc/powerpc/gen/Makefile.inc
new file mode 100644
index 0000000..a55e204
--- /dev/null
+++ b/lib/libc/powerpc/gen/Makefile.inc
@@ -0,0 +1,6 @@
+# $FreeBSD$
+
+SRCS += frexp.c infinity.c isinf.c ldexp.c modf.c _setjmp.S setjmp.S \
+	sigsetjmp.S syncicache.c
+
+
diff --git a/lib/libc/powerpc/gen/_setjmp.S b/lib/libc/powerpc/gen/_setjmp.S
new file mode 100644
index 0000000..6d6e5e0
--- /dev/null
+++ b/lib/libc/powerpc/gen/_setjmp.S
@@ -0,0 +1,71 @@
+/*-
+ * 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>
+__FBSDID("$FreeBSD$");
+
+/*
+ * 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
+	stmw	%r9,20(%r3)
+	li	%r3,0
+	blr
+
+ENTRY(_longjmp)
+	lmw	%r9,20(%r3)
+	mtlr	%r11
+	mtcr	%r12
+	mr	%r2,%r9
+	mr	%r1,%r10
+	or.	%r3,%r4,%r4
+	bnelr
+	li	%r3,1
+	blr
diff --git a/lib/libc/powerpc/gen/frexp.c b/lib/libc/powerpc/gen/frexp.c
new file mode 100644
index 0000000..386c36b
--- /dev/null
+++ b/lib/libc/powerpc/gen/frexp.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 1994, 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ * 
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ *
+ *	$NetBSD: frexp.c,v 1.1 1995/02/10 17:50:22 cgd Exp $
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <math.h>
+
+double
+frexp(value, eptr)
+	double value;
+	int *eptr;
+{
+	union doub {
+                double v;
+		struct ieee_double s;
+        } u;
+
+	if (value) {
+		u.v = value;
+		*eptr = u.s.dbl_exp - (DBL_EXP_BIAS - 1);
+		u.s.dbl_exp = DBL_EXP_BIAS - 1;
+		return(u.v);
+	} else {
+		*eptr = 0;
+		return((double)0);
+	}
+}
diff --git a/lib/libc/powerpc/gen/infinity.c b/lib/libc/powerpc/gen/infinity.c
new file mode 100644
index 0000000..428f24d
--- /dev/null
+++ b/lib/libc/powerpc/gen/infinity.c
@@ -0,0 +1,14 @@
+#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 $");
+#endif /* LIBC_SCCS and not lint */
+#endif
+__FBSDID("$FreeBSD$");
+
+/* infinity.c */
+
+#include <math.h>
+
+/* bytes for +Infinity on powerpc */
+const union __infinity_un __infinity = { { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 } };
diff --git a/lib/libc/powerpc/gen/isinf.c b/lib/libc/powerpc/gen/isinf.c
new file mode 100644
index 0000000..b162817
--- /dev/null
+++ b/lib/libc/powerpc/gen/isinf.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 1994, 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ * 
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ *
+ *	$NetBSD: isinf.c,v 1.1 1995/02/10 17:50:23 cgd Exp $
+ *	from: FreeBSD: src/lib/libc/alpha/gen/isinf.c,v 1.2 2000/05/10
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <math.h>
+
+int
+isnan(double d)
+{
+	struct ieee_double *p = (struct ieee_double *)&d;
+
+	return (p->dbl_exp == DBL_EXP_INFNAN &&
+	    (p->dbl_frach || p->dbl_fracl));
+}
+
+int
+isinf(double d)
+{
+	struct ieee_double *p = (struct ieee_double *)&d;
+
+	return (p->dbl_exp == DBL_EXP_INFNAN &&
+	    !p->dbl_frach && !p->dbl_fracl);
+}
diff --git a/lib/libc/powerpc/gen/ldexp.c b/lib/libc/powerpc/gen/ldexp.c
new file mode 100644
index 0000000..3a85612
--- /dev/null
+++ b/lib/libc/powerpc/gen/ldexp.c
@@ -0,0 +1,155 @@
+/*-
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 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>
+#if 0
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: ldexp.c,v 1.8 1999/08/30 18:28:26 mycroft Exp $");
+#endif /* LIBC_SCCS and not lint */
+#endif
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <errno.h>
+#include <math.h>
+
+/*
+ * Multiply the given value by 2^exp.
+ */
+double
+ldexp(val, exp)
+	double val;
+	int exp;
+{
+	int oldexp, newexp;
+	union {
+		double v;
+		struct ieee_double s;
+	} u, mul;
+
+	u.v = val;
+	oldexp = u.s.dbl_exp;
+
+	/*
+	 * If input is zero, Inf or NaN, just return it.
+	 */
+	if (u.v == 0.0 || oldexp == DBL_EXP_INFNAN)
+		return (val);
+
+	if (oldexp == 0) {
+		/*
+		 * u.v is denormal.  We must adjust it so that the exponent
+		 * arithmetic below will work.
+		 */
+		if (exp <= DBL_EXP_BIAS) {
+			/*
+			 * Optimization: if the scaling can be done in a single
+			 * multiply, or underflows, just do it now.
+			 */
+			if (exp <= -DBL_FRACBITS) {
+				errno = ERANGE;
+				return (0.0);
+			}
+			mul.v = 0.0;
+			mul.s.dbl_exp = exp + DBL_EXP_BIAS;
+			u.v *= mul.v;
+			if (u.v == 0.0) {
+				errno = ERANGE;
+				return (0.0);
+			}
+			return (u.v);
+		} else {
+			/*
+			 * We know that exp is very large, and therefore the
+			 * result cannot be denormal (though it may be Inf).
+			 * Shift u.v by just enough to make it normal.
+			 */
+			mul.v = 0.0;
+			mul.s.dbl_exp = DBL_FRACBITS + DBL_EXP_BIAS;
+			u.v *= mul.v;
+			exp -= DBL_FRACBITS;
+			oldexp = u.s.dbl_exp;
+		}
+	}
+
+	/*
+	 * u.v is now normalized and oldexp has been adjusted if necessary.
+	 * Calculate the new exponent and check for underflow and overflow.
+	 */
+	newexp = oldexp + exp;
+
+	if (newexp <= 0) {
+		/*
+		 * The output number is either denormal or underflows (see
+		 * comments in machine/ieee.h).
+		 */
+		if (newexp <= -DBL_FRACBITS) {
+			errno = ERANGE;
+			return (0.0);
+		}
+		/*
+		 * Denormalize the result.  We do this with a multiply.  If exp
+		 * is very large, it won't fit in a double, so we have to
+		 * adjust the exponent first.  This is safe because we know
+		 * that u.v is normal at this point.
+		 */
+		if (exp <= -DBL_EXP_BIAS) {
+			u.s.dbl_exp = 1;
+			exp += oldexp - 1;
+		}
+		mul.v = 0.0;
+		mul.s.dbl_exp = exp + DBL_EXP_BIAS;
+		u.v *= mul.v;
+		return (u.v);
+	} else if (newexp >= DBL_EXP_INFNAN) {
+		/*
+		 * The result overflowed; return +/-Inf.
+		 */
+		u.s.dbl_exp = DBL_EXP_INFNAN;
+		u.s.dbl_frach = 0;
+		u.s.dbl_fracl = 0;
+		errno = ERANGE;
+		return (u.v);
+	} else {
+		/*
+		 * The result is normal; just replace the old exponent with the
+		 * new one.
+		 */
+		u.s.dbl_exp = newexp;
+		return (u.v);
+	}
+}
diff --git a/lib/libc/powerpc/gen/modf.c b/lib/libc/powerpc/gen/modf.c
new file mode 100644
index 0000000..37786dc
--- /dev/null
+++ b/lib/libc/powerpc/gen/modf.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 1994, 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ * 
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ *
+ *	$NetBSD: modf.c,v 1.1 1995/02/10 17:50:25 cgd Exp $
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <errno.h>
+#include <math.h>
+
+/*
+ * double modf(double val, double *iptr)
+ * returns: f and i such that |f| < 1.0, (f + i) = val, and
+ *	sign(f) == sign(i) == sign(val).
+ *
+ * Beware signedness when doing subtraction, and also operand size!
+ */
+double
+modf(val, iptr)
+	double val, *iptr;
+{
+	union doub {
+		double v;
+		struct ieee_double s;
+	} u, v;
+	u_int64_t frac;
+
+	/*
+	 * If input is Inf or NaN, return it and leave i alone.
+	 */
+	u.v = val;
+	if (u.s.dbl_exp == DBL_EXP_INFNAN)
+		return (u.v);
+
+	/*
+	 * If input can't have a fractional part, return
+	 * (appropriately signed) zero, and make i be the input.
+	 */
+	if ((int)u.s.dbl_exp - DBL_EXP_BIAS > DBL_FRACBITS - 1) {
+		*iptr = u.v;
+		v.v = 0.0;
+		v.s.dbl_sign = u.s.dbl_sign;
+		return (v.v);
+	}
+
+	/*
+	 * If |input| < 1.0, return it, and set i to the appropriately
+	 * signed zero.
+	 */
+	if (u.s.dbl_exp < DBL_EXP_BIAS) {
+		v.v = 0.0;
+		v.s.dbl_sign = u.s.dbl_sign;
+		*iptr = v.v;
+		return (u.v);
+	}
+
+	/*
+	 * There can be a fractional part of the input.
+	 * If you look at the math involved for a few seconds, it's
+	 * plain to see that the integral part is the input, with the
+	 * low (DBL_FRACBITS - (exponent - DBL_EXP_BIAS)) bits zeroed,
+	 * the the fractional part is the part with the rest of the
+	 * bits zeroed.  Just zeroing the high bits to get the
+	 * fractional part would yield a fraction in need of
+	 * normalization.  Therefore, we take the easy way out, and
+	 * just use subtraction to get the fractional part.
+	 */
+	v.v = u.v;
+	/* Zero the low bits of the fraction, the sleazy way. */
+	frac = ((u_int64_t)v.s.dbl_frach << 32) + v.s.dbl_fracl;
+	frac >>= DBL_FRACBITS - (u.s.dbl_exp - DBL_EXP_BIAS);
+	frac <<= DBL_FRACBITS - (u.s.dbl_exp - DBL_EXP_BIAS);
+	v.s.dbl_fracl = frac & 0xffffffff;
+	v.s.dbl_frach = frac >> 32;
+	*iptr = v.v;
+
+	u.v -= v.v;
+	u.s.dbl_sign = v.s.dbl_sign;
+	return (u.v);
+}
diff --git a/lib/libc/powerpc/gen/setjmp.S b/lib/libc/powerpc/gen/setjmp.S
new file mode 100644
index 0000000..a796120
--- /dev/null
+++ b/lib/libc/powerpc/gen/setjmp.S
@@ -0,0 +1,91 @@
+/*-
+ * 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>
+__FBSDID("$FreeBSD$");
+
+#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 */
+	stmw	%r9,20(%r6)
+	li	%r3,0			/* return (0) */
+	blr
+
+	.weak CNAME(longjmp)
+	.set CNAME(longjmp),CNAME(__longjmp)
+ENTRY(__longjmp)
+	lmw	%r9,20(%r3)		/* restore regs */
+	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
+
diff --git a/lib/libc/powerpc/gen/sigsetjmp.S b/lib/libc/powerpc/gen/sigsetjmp.S
new file mode 100644
index 0000000..3d5d1e5
--- /dev/null
+++ b/lib/libc/powerpc/gen/sigsetjmp.S
@@ -0,0 +1,97 @@
+/*-
+ * 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>
+__FBSDID("$FreeBSD$");
+
+/*
+ * 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
+	stmw	%r9,20(%r6)
+	li	%r3,0
+	blr
+
+ENTRY(siglongjmp)
+	lmw	%r9,20(%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
diff --git a/lib/libc/powerpc/gen/syncicache.c b/lib/libc/powerpc/gen/syncicache.c
new file mode 100644
index 0000000..12dd55c
--- /dev/null
+++ b/lib/libc/powerpc/gen/syncicache.c
@@ -0,0 +1,98 @@
+/*
+ * 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 $
+ */
+
+#ifndef lint
+static const char rcsid[] =
+  "$FreeBSD$";
+#endif /* not lint */
+
+#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>
+
+#if	defined(_KERNEL) || defined(_STANDALONE)
+#ifndef	CACHELINESIZE
+#error "Must know the size of a cache line"
+#endif
+#else
+static void getcachelinesize(void);
+
+static int _cachelinesize;
+#define	CACHELINESIZE	_cachelinesize
+
+static void
+getcachelinesize()
+{
+	static int	cachemib[] = { CTL_MACHDEP, CPU_CACHELINE };
+	int		clen;
+
+	clen = sizeof(_cachelinesize);
+
+	if (sysctl(cachemib, sizeof(cachemib) / sizeof(cachemib[0]),
+	    &_cachelinesize, &clen, NULL, 0) < 0 || !_cachelinesize) {
+		abort();
+	}
+}
+#endif
+
+void
+__syncicache(void *from, int len)
+{
+	int	l, off;
+	char	*p;
+
+#if	!defined(_KERNEL) && !defined(_STANDALONE)
+	if (!_cachelinesize)
+		getcachelinesize();
+#endif	
+	off = (u_int)from & (CACHELINESIZE - 1);
+	l = len += off;
+	p = (char *)from - off;
+	do {
+		__asm __volatile ("dcbst 0,%0" :: "r"(p));
+		p += CACHELINESIZE;
+	} while ((l -= CACHELINESIZE) > 0);
+	__asm __volatile ("sync");
+	p = (char *)from - off;
+	do {
+		__asm __volatile ("icbi 0,%0" :: "r"(p));
+		p += CACHELINESIZE;
+	} while ((len -= CACHELINESIZE) > 0);
+	__asm __volatile ("sync; isync");
+}
diff --git a/lib/libc/powerpc/sys/Makefile.inc b/lib/libc/powerpc/sys/Makefile.inc
new file mode 100644
index 0000000..3718c1a
--- /dev/null
+++ b/lib/libc/powerpc/sys/Makefile.inc
@@ -0,0 +1,11 @@
+# $FreeBSD$
+
+MDASM+=	brk.S cerror.S exect.S pipe.S ptrace.S sbrk.S setlogin.S
+
+# Don't generate default code for these syscalls:
+NOASM=	break.o exit.o ftruncate.o getdomainname.o getlogin.o \
+	lseek.o mlockall.o mmap.o munlockall.o openbsd_poll.o pread.o \
+	pwrite.o setdomainname.o sstk.o truncate.o uname.o yield.o
+
+PSEUDO=	_getlogin.o _exit.o
+
diff --git a/lib/libc/powerpc/sys/brk.S b/lib/libc/powerpc/sys/brk.S
new file mode 100644
index 0000000..9223db3
--- /dev/null
+++ b/lib/libc/powerpc/sys/brk.S
@@ -0,0 +1,73 @@
+/*-
+ * 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: brk.S,v 1.9 2000/06/26 06:25:43 kleink Exp $   */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+        .globl  HIDENAME(curbrk)
+        .globl  HIDENAME(minbrk)
+        .globl  CNAME(_end)
+
+        .data
+HIDENAME(minbrk):
+        .long   CNAME(_end)
+
+        .text
+
+ENTRY(brk)
+#ifdef PIC
+	mflr    %r10
+	bl	_GLOBAL_OFFSET_TABLE_@local-4
+	mflr	%r9
+	mtlr	%r10
+	lwz	%r5,HIDENAME(minbrk)@got(%r9)
+	lwz	%r6,0(%r5)
+#else
+	lis	%r5,HIDENAME(minbrk)@ha
+	lwz	%r6,HIDENAME(minbrk)@l(%r5)
+#endif
+	cmplw   %r6,%r3			/* if (minbrk <= r3) */
+	bgt     0f
+	mr	%r6,%r3			/* r6 = r3 */
+0:
+	mr      %r3,%r6			/* new break value */
+	li      %r0,SYS_break
+	sc				/* assume, that r5 is kept */
+	bso	1f
+#ifdef PIC
+	lwz	%r7,HIDENAME(curbrk)@got(%r9)
+	stw	%r6,0(%r7)
+#else
+	lis	%r7,HIDENAME(curbrk)@ha /* record new break */
+	stw	%r6,HIDENAME(curbrk)@l(%r7)
+#endif
+	blr				/* return 0 */
+
+1:
+	b	PIC_PLT(HIDENAME(cerror))
diff --git a/lib/libc/powerpc/sys/cerror.S b/lib/libc/powerpc/sys/cerror.S
new file mode 100644
index 0000000..91a3006
--- /dev/null
+++ b/lib/libc/powerpc/sys/cerror.S
@@ -0,0 +1,57 @@
+/*-
+ * 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: cerror.S,v 1.5 2000/01/27 14:58:48 kleink Exp $        */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+	
+#include "SYS.h"
+
+	.globl  HIDENAME(cerror)
+	.globl  CNAME(__error)
+
+	/*
+	 * The __error() function is thread aware. For non-threaded
+	 * programs and the initial threaded in threaded programs,
+	 * it returns a pointer to the global errno variable.
+	 */
+HIDENAME(cerror):
+	mflr	%r0
+	stwu	%r1,-16(%r1)		/* allocate new stack frame */
+	stw	%r0,20(%r1)		/* and save lr, r31 */
+	stw	%r31,8(%r1)
+	mr	%r31,%r3          /* stash errval in callee-saved register */
+	bl	PIC_PLT(CNAME(__error))
+	stw	%r31,0(%r3)		/* store errval into &errno */
+	lwz	%r0,20(%r1)
+	lwz	%r31,8(%r1)
+	mtlr	%r0
+	la	%r1,16(%r1)
+	li	%r3,-1
+	li	%r4,-1
+	blr				/* return to callers caller */
+
+
diff --git a/lib/libc/powerpc/sys/exect.S b/lib/libc/powerpc/sys/exect.S
new file mode 100644
index 0000000..d5f9c20
--- /dev/null
+++ b/lib/libc/powerpc/sys/exect.S
@@ -0,0 +1,39 @@
+/*-
+ * 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: exect.S,v 1.3 1998/05/25 15:28:03 ws Exp $     */
+	
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+ENTRY(exect)
+	li	%r0,SYS_execve
+	sc
+	bso	1f
+	blr
+1:
+	b	PIC_PLT(HIDENAME(cerror))
diff --git a/lib/libc/powerpc/sys/pipe.S b/lib/libc/powerpc/sys/pipe.S
new file mode 100644
index 0000000..3ca2358
--- /dev/null
+++ b/lib/libc/powerpc/sys/pipe.S
@@ -0,0 +1,43 @@
+/*-
+ * 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: pipe.S,v 1.6 2000/09/28 08:38:54 kleink Exp $  */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+ENTRY(pipe)
+	mr	%r5,%r3		/* save pointer */
+	li	%r0,SYS_pipe
+	sc			/* r5 is preserved */
+	bso	1f
+	stw	%r3,0(%r5)	/* success, store fds */
+	stw	%r4,4(%r5)
+	li	%r3,0
+	blr			/* and return 0 */
+1:
+	b	PIC_PLT(HIDENAME(cerror))
diff --git a/lib/libc/powerpc/sys/ptrace.S b/lib/libc/powerpc/sys/ptrace.S
new file mode 100644
index 0000000..f47fc67
--- /dev/null
+++ b/lib/libc/powerpc/sys/ptrace.S
@@ -0,0 +1,58 @@
+/*-
+ * 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: ptrace.S,v 1.3 2000/02/23 20:16:57 kleink Exp $        */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+ENTRY(ptrace)
+	mflr	%r0
+	stwu	%r1,-32(%r1)
+	stw	%r0,36(%r1)
+	stw	%r3,8(%r1)
+	stw	%r4,12(%r1)
+	stw	%r5,16(%r1)
+	stw	%r6,20(%r1)
+
+	bl	PIC_PLT(CNAME(__error))
+	li	%r7,0
+	stw	%r7,0(%r3)
+
+	lwz	%r3,8(%r1)
+	lwz	%r4,12(%r1)
+	lwz	%r5,16(%r1)
+	lwz	%r0,36(%r1)
+	lwz	%r6,20(%r1)
+	mtlr	%r0
+	la	%r1,32(%r1)
+	li	%r0,SYS_ptrace
+	sc
+	bso	1f
+	blr
+1:
+	b	PIC_PLT(HIDENAME(cerror))
diff --git a/lib/libc/powerpc/sys/sbrk.S b/lib/libc/powerpc/sys/sbrk.S
new file mode 100644
index 0000000..47fc0fe
--- /dev/null
+++ b/lib/libc/powerpc/sys/sbrk.S
@@ -0,0 +1,70 @@
+/*-
+ * 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: sbrk.S,v 1.8 2000/06/26 06:25:44 kleink Exp $  */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+	.globl	HIDENAME(curbrk)
+	.globl	CNAME(_end)
+
+	.data
+HIDENAME(curbrk):
+	.long	CNAME(_end)
+
+	.text
+ENTRY(sbrk)
+
+#ifdef PIC
+	mflr	%r10
+	bl	_GLOBAL_OFFSET_TABLE_@local-4
+	mflr	%r5
+	mtlr	%r10
+	lwz	%r5,HIDENAME(curbrk)@got(%r5)
+	lwz	%r6,0(%r5)
+#else
+	lis	%r5,HIDENAME(curbrk)@ha
+	lwz	%r6,HIDENAME(curbrk)@l(%r5)	/* r6 = old break */
+#endif
+	cmpwi	%r3,0				/* sbrk(0) - return curbrk */
+	beq	1f
+	add	%r3,%r3,%r6
+	mr	%r7,%r3				/* r7 = new break */
+	li	%r0,SYS_break
+	sc					/* break(new_break) */
+	bso	2f
+#ifdef PIC
+	stw     %r7,0(%r5)
+#else
+	stw     %r7,HIDENAME(curbrk)@l(%r5)	/* record new break */
+#endif
+1:
+	mr      %r3,%r6				/* set return value */
+	blr
+2:
+	b	PIC_PLT(HIDENAME(cerror))
diff --git a/lib/libc/powerpc/sys/setlogin.S b/lib/libc/powerpc/sys/setlogin.S
new file mode 100644
index 0000000..c65e639
--- /dev/null
+++ b/lib/libc/powerpc/sys/setlogin.S
@@ -0,0 +1,49 @@
+/*-
+ * 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: setlogin.S,v 1.3 1998/11/24 11:14:57 tsubai Exp $      */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+	
+#include "SYS.h"
+
+	.globl  CNAME(_logname_valid)		/* in _getlogin() */
+
+SYSCALL(setlogin)
+#ifdef PIC
+	mflr	%r10
+	bl	_GLOBAL_OFFSET_TABLE_@local-4
+	mflr	%r4
+	lwz	%r4,CNAME(_logname_valid)@got(%r4)
+	li	%r5,%r0
+	stw	%r5,0(%r4)
+	mtlr	%r10
+#else
+	lis	%r4,CNAME(_logname_valid)@ha
+	li	%r5,0
+	stw	%r5,CNAME(_logname_valid)@l(%r4)
+#endif
+	blr