Fixed arch Jamfile to not use OBOS_TARGET_DIR any longer.

Added math-arch PPC files - general status: working but not optimized.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3145 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/libroot/posix/math/arch/Jamfile

@@ -1,3 +1,3 @@
 SubDir OBOS_TOP src kernel libroot posix math arch ;
 
-SubInclude OBOS_TOP src kernel libroot posix math arch $(OBOS_TARGET_DIR) ;
+SubInclude OBOS_TOP src kernel libroot posix math arch $(OBOS_ARCH) ;

src/kernel/libroot/posix/math/arch/ppc/Jamfile

@@ -0,0 +1,10 @@
+SubDir OBOS_TOP src kernel libroot posix math arch ppc ;
+
+KernelMergeObject posix_math_arch_$(OBOS_ARCH).o :
+	<$(SOURCE_GRIST)>fabs.c
+	<$(SOURCE_GRIST)>frexp.c
+	<$(SOURCE_GRIST)>isinf.c
+	<$(SOURCE_GRIST)>ldexp.c
+	:
+	-fPIC -DPIC
+	;

src/kernel/libroot/posix/math/arch/ppc/fabs.c

@@ -0,0 +1,18 @@
+/*
+** Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+*/
+
+
+#include <math.h>
+
+
+double
+fabs(double value)
+{
+	// ToDo: that's a slow, generic implementation
+	if (value > 0)
+		return value;
+
+	return -value;
+}

src/kernel/libroot/posix/math/arch/ppc/frexp.c

@@ -0,0 +1,60 @@
+/* Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+
+#include <math.h>
+
+double
+frexp(value, eptr)
+	double value;
+	int *eptr;
+{
+	union {
+                double v;
+                struct {
+			unsigned u_mant2 : 32;
+			unsigned u_mant1 : 20;
+			unsigned   u_exp : 11;
+                        unsigned  u_sign :  1;
+                } s;
+        } u;
+
+	if (value) {
+		u.v = value;
+		*eptr = u.s.u_exp - 1022;
+		u.s.u_exp = 1022;
+		return(u.v);
+	} else {
+		*eptr = 0;
+		return((double)0);
+	}
+}

src/kernel/libroot/posix/math/arch/ppc/isinf.c

@@ -0,0 +1,68 @@
+/* Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <math.h>
+
+/* ToDo: on BeOS/x86, these are defined as __isnan(), and __isinf() - the
+ * isnan()/isinf() are only macros - we will have to reflect this here.
+ */
+
+int isnan(double);
+int isinf(double);
+
+int
+isnan(double d)
+{
+	register struct IEEEdp {
+		unsigned manl : 32;
+		unsigned manh : 20;
+		unsigned  exp : 11;
+		unsigned sign :  1;
+	} *p = (struct IEEEdp *)&d;
+
+	return p->exp == 2047 && (p->manh || p->manl);
+}
+
+
+int
+isinf(double d)
+{
+	register struct IEEEdp {
+		u_int manl : 32;
+		u_int manh : 20;
+		u_int  exp : 11;
+		u_int sign :  1;
+	} *p = (struct IEEEdp *)&d;
+
+	return p->exp == 2047 && !p->manh && !p->manl;
+}

src/kernel/libroot/posix/math/arch/ppc/ldexp.c

@@ -0,0 +1,19 @@
+/*
+** Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+*/
+
+
+#include <math.h>
+
+
+double
+ldexp(double value, int exp)
+{
+	// ToDo: that's a slow, generic implementation
+	double power = 1.;
+	while (exp-- > 0)
+		power *= 2.;
+
+	return value * power;
+}