ARM/libroot: Some last fp bits-n-pieces

src/system/libroot/posix/glibc/arch/arm/Jamfile

@@ -34,11 +34,12 @@ local genericSources =
 	s_isnan.c s_isnanf.c
 	s_signbit.c s_signbitf.c s_signbitl.c
 
-	s_floor.c
+	s_floor.c s_floorf.c
 	s_ceil.c s_ceilf.c
 	s_modf.c
 	w_pow.c e_pow.c slowpow.c
-	e_exp.c slowexp.c
+	w_exp.c e_exp.c slowexp.c
+	s_frexp.c s_expm1.c
 	dosincos.c
 	doasin.c
 	sincos32.c
@@ -51,10 +52,15 @@ local genericSources =
 	e_asin.c w_asin.c
 	e_log10.c w_log10.c
 	e_acos.c w_acos.c
-	e_atan2.c w_atan2.c mpatan2.c mpatan.c mptan.c mpsqrt.c
+	e_atan2.c w_atan2.c mpatan2.c mpatan.c mptan.c mpsqrt.c w_sqrt.c w_sqrtf.c
 	e_fmod.c w_fmod.c
 	e_log.c w_log.c
+	e_cosh.c w_cosh.c
+	e_sinh.c w_sinh.c
 	s_ldexp.c s_ldexpf.c
+	s_scalbnf.c s_scalbn.c
+	s_copysign.c
+	s_tanh.c
 ;
 
 MergeObject posix_gnu_arch_$(TARGET_ARCH)_generic.o :
@@ -63,6 +69,7 @@ MergeObject posix_gnu_arch_$(TARGET_ARCH)_generic.o :
 
 MergeObject posix_gnu_arch_$(TARGET_ARCH)_others.o :
 	e_sqrt.c
+	e_sqrtf.c
 ;
 
 MergeObjectFromObjects posix_gnu_arch_$(TARGET_ARCH).o : :

src/system/libroot/posix/glibc/arch/arm/e_sqrtf.c

@@ -0,0 +1,97 @@
+/* e_sqrtf.c -- float version of e_sqrt.c.
+ * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice 
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: e_sqrtf.c,v 1.4 1995/05/10 20:46:19 jtc Exp $";
+#endif
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static	const float	one	= 1.0, tiny=1.0e-30;
+#else
+static	float	one	= 1.0, tiny=1.0e-30;
+#endif
+
+#ifdef __STDC__
+	float __ieee754_sqrtf(float x)
+#else
+	float __ieee754_sqrtf(x)
+	float x;
+#endif
+{
+	float z;
+	int32_t sign = (int)0x80000000; 
+	int32_t ix,s,q,m,t,i;
+	u_int32_t r;
+
+	GET_FLOAT_WORD(ix,x);
+
+    /* take care of Inf and NaN */
+	if((ix&0x7f800000)==0x7f800000) {			
+	    return x*x+x;		/* sqrt(NaN)=NaN, sqrt(+inf)=+inf
+					   sqrt(-inf)=sNaN */
+	} 
+    /* take care of zero */
+	if(ix<=0) {
+	    if((ix&(~sign))==0) return x;/* sqrt(+-0) = +-0 */
+	    else if(ix<0)
+		return (x-x)/(x-x);		/* sqrt(-ve) = sNaN */
+	}
+    /* normalize x */
+	m = (ix>>23);
+	if(m==0) {				/* subnormal x */
+	    for(i=0;(ix&0x00800000)==0;i++) ix<<=1;
+	    m -= i-1;
+	}
+	m -= 127;	/* unbias exponent */
+	ix = (ix&0x007fffff)|0x00800000;
+	if(m&1)	/* odd m, double x to make it even */
+	    ix += ix;
+	m >>= 1;	/* m = [m/2] */
+
+    /* generate sqrt(x) bit by bit */
+	ix += ix;
+	q = s = 0;		/* q = sqrt(x) */
+	r = 0x01000000;		/* r = moving bit from right to left */
+
+	while(r!=0) {
+	    t = s+r; 
+	    if(t<=ix) { 
+		s    = t+r; 
+		ix  -= t; 
+		q   += r; 
+	    } 
+	    ix += ix;
+	    r>>=1;
+	}
+
+    /* use floating add to find out rounding direction */
+	if(ix!=0) {
+	    z = one-tiny; /* trigger inexact flag */
+	    if (z>=one) {
+	        z = one+tiny;
+		if (z>one)
+		    q += 2;
+		else
+		    q += (q&1);
+	    }
+	}
+	ix = (q>>1)+0x3f000000;
+	ix += (m <<23);
+	SET_FLOAT_WORD(z,ix);
+	return z;
+}