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-rw-r--r--sysdeps/generic/rpc/auth.h180
-rw-r--r--sysdeps/generic/rpc/auth_des.h46
-rw-r--r--sysdeps/libm-i387/s_cbrt.S185
-rw-r--r--sysdeps/libm-i387/s_cbrtf.S166
-rw-r--r--sysdeps/libm-i387/s_cbrtl.S188
-rw-r--r--sysdeps/libm-i387/s_frexp.S82
-rw-r--r--sysdeps/libm-i387/s_frexpf.S80
-rw-r--r--sysdeps/libm-i387/s_frexpl.S82
-rw-r--r--sysdeps/libm-ieee754/s_cbrt.c128
-rw-r--r--sysdeps/libm-ieee754/s_cbrtf.c118
-rw-r--r--sysdeps/libm-ieee754/s_cbrtl.c176
-rw-r--r--sysdeps/libm-ieee754/s_nan.c1
-rw-r--r--sysdeps/libm-ieee754/s_nanf.c1
-rw-r--r--sysdeps/libm-ieee754/s_nanl.c1
-rw-r--r--sysdeps/unix/sysv/linux/Makefile2
-rw-r--r--sysdeps/unix/sysv/linux/sigset.h2
16 files changed, 1179 insertions, 259 deletions
diff --git a/sysdeps/generic/rpc/auth.h b/sysdeps/generic/rpc/auth.h
new file mode 100644
index 0000000000..61cd351485
--- /dev/null
+++ b/sysdeps/generic/rpc/auth.h
@@ -0,0 +1,180 @@
+/* @(#)auth.h	2.3 88/08/07 4.0 RPCSRC; from 1.17 88/02/08 SMI */
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ *
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ *
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ *
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California  94043
+ */
+
+/*
+ * auth.h, Authentication interface.
+ *
+ * Copyright (C) 1984, Sun Microsystems, Inc.
+ *
+ * The data structures are completely opaque to the client.  The client
+ * is required to pass a AUTH * to routines that create rpc
+ * "sessions".
+ */
+
+#ifndef _RPC_AUTH_H
+
+#define _RPC_AUTH_H	1
+#include <features.h>
+#include <rpc/xdr.h>
+
+__BEGIN_DECLS
+
+#define MAX_AUTH_BYTES	400
+#define MAXNETNAMELEN	255	/* maximum length of network user's name */
+
+/*
+ * Status returned from authentication check
+ */
+enum auth_stat {
+	AUTH_OK=0,
+	/*
+	 * failed at remote end
+	 */
+	AUTH_BADCRED=1,			/* bogus credentials (seal broken) */
+	AUTH_REJECTEDCRED=2,		/* client should begin new session */
+	AUTH_BADVERF=3,			/* bogus verifier (seal broken) */
+	AUTH_REJECTEDVERF=4,		/* verifier expired or was replayed */
+	AUTH_TOOWEAK=5,			/* rejected due to security reasons */
+	/*
+	 * failed locally
+	*/
+	AUTH_INVALIDRESP=6,		/* bogus response verifier */
+	AUTH_FAILED=7			/* some unknown reason */
+};
+
+union des_block {
+	struct {
+		u_int32_t high;
+		u_int32_t low;
+	} key;
+	char c[8];
+};
+typedef union des_block des_block;
+extern bool_t xdr_des_block __P ((XDR *__xdrs, des_block *__blkp));
+
+/*
+ * Authentication info.  Opaque to client.
+ */
+struct opaque_auth {
+	enum_t	oa_flavor;		/* flavor of auth */
+	caddr_t	oa_base;		/* address of more auth stuff */
+	u_int	oa_length;		/* not to exceed MAX_AUTH_BYTES */
+};
+
+/*
+ * Auth handle, interface to client side authenticators.
+ */
+typedef struct AUTH AUTH;
+struct AUTH {
+  struct opaque_auth ah_cred;
+  struct opaque_auth ah_verf;
+  union des_block ah_key;
+  struct auth_ops {
+    void (*ah_nextverf) __P ((AUTH *));
+    int  (*ah_marshal) __P ((AUTH *, XDR *));	/* nextverf & serialize */
+    int  (*ah_validate) __P ((AUTH *, struct opaque_auth *));	
+						/* validate verifier */
+    int  (*ah_refresh) __P ((AUTH *));		/* refresh credentials */
+    void (*ah_destroy) __P ((AUTH *));     	/* destroy this structure */
+  } *ah_ops;
+  caddr_t ah_private;
+};
+
+
+/*
+ * Authentication ops.
+ * The ops and the auth handle provide the interface to the authenticators.
+ *
+ * AUTH	*auth;
+ * XDR	*xdrs;
+ * struct opaque_auth verf;
+ */
+#define AUTH_NEXTVERF(auth)		\
+		((*((auth)->ah_ops->ah_nextverf))(auth))
+#define auth_nextverf(auth)		\
+		((*((auth)->ah_ops->ah_nextverf))(auth))
+
+#define AUTH_MARSHALL(auth, xdrs)	\
+		((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
+#define auth_marshall(auth, xdrs)	\
+		((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
+
+#define AUTH_VALIDATE(auth, verfp)	\
+		((*((auth)->ah_ops->ah_validate))((auth), verfp))
+#define auth_validate(auth, verfp)	\
+		((*((auth)->ah_ops->ah_validate))((auth), verfp))
+
+#define AUTH_REFRESH(auth)		\
+		((*((auth)->ah_ops->ah_refresh))(auth))
+#define auth_refresh(auth)		\
+		((*((auth)->ah_ops->ah_refresh))(auth))
+
+#define AUTH_DESTROY(auth)		\
+		((*((auth)->ah_ops->ah_destroy))(auth))
+#define auth_destroy(auth)		\
+		((*((auth)->ah_ops->ah_destroy))(auth))
+
+
+extern struct opaque_auth _null_auth;
+
+
+/*
+ * These are the various implementations of client side authenticators.
+ */
+
+/*
+ * Unix style authentication
+ * AUTH *authunix_create(machname, uid, gid, len, aup_gids)
+ *	char *machname;
+ *	int uid;
+ *	int gid;
+ *	int len;
+ *	int *aup_gids;
+ */
+extern AUTH *authunix_create __P ((char *__machname, __uid_t __uid,
+				   __gid_t __gid, int __len,
+				   __gid_t *__aup_gids));
+extern AUTH *authunix_create_default __P ((void));
+extern AUTH *authnone_create __P ((void));
+extern AUTH *authdes_create __P ((char *__servername, u_int __window, 
+				  struct sockaddr *__syncaddr,
+				  des_block *__ckey));
+
+#define AUTH_NONE	0		/* no authentication */
+#define	AUTH_NULL	0		/* backward compatibility */
+#define	AUTH_SYS	1		/* unix style (uid, gids) */
+#define	AUTH_UNIX	AUTH_SYS
+#define	AUTH_SHORT	2		/* short hand unix style */
+#define AUTH_DES	3		/* des style (encrypted timestamps) */
+#define AUTH_KERB       4               /* kerberos style */
+
+__END_DECLS
+
+#endif /* rpc/auth.h */
diff --git a/sysdeps/generic/rpc/auth_des.h b/sysdeps/generic/rpc/auth_des.h
new file mode 100644
index 0000000000..8c2f794691
--- /dev/null
+++ b/sysdeps/generic/rpc/auth_des.h
@@ -0,0 +1,46 @@
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _RPC_AUTH_DES_H
+
+#define _RPC_AUTH_DES_H	1
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+/* This is no complete version of this header.  More definitions with
+   the real authentication stuff will come in 1997.  For now we only
+   need to define the function for handling public keys.  */
+
+
+/* Get the public key for NAME and place it in KEY.  NAME can only be
+   up to MAXNETNAMELEN bytes long and the destination buffer KEY should
+   have HEXKEYBATES + 1 bytes long to fit all characters from the key.  */
+extern int getpublickey __P ((__const char *__name, char *__key));
+
+/* Get the secret key for NAME and place it in KEY.  PASSWD is used to
+   decrypt the encrypted key stored in the database.  NAME can only be
+   up to MAXNETNAMELEN bytes long and the destination buffer KEY
+   should have HEXKEYBATES + 1 bytes long to fit all characters from
+   the key.  */
+extern int getsecretkey __P ((__const char *__name, char *__key,
+			      __const char *__passwd));
+
+__END_DECLS
+
+#endif /* rpc/auth_des.h */
diff --git a/sysdeps/libm-i387/s_cbrt.S b/sysdeps/libm-i387/s_cbrt.S
new file mode 100644
index 0000000000..4b9a2b11c6
--- /dev/null
+++ b/sysdeps/libm-i387/s_cbrt.S
@@ -0,0 +1,185 @@
+/* Compute cubic root of double value.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Dirk Alboth <dirka@uni-paderborn.de> and
+   Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <machine/asm.h>
+
+#ifdef __ELF__
+        .section .rodata
+#else
+        .text
+#endif
+
+        .align ALIGNARG(4)
+        ASM_TYPE_DIRECTIVE(f1,@object)
+f1:	.double 0.354895765043919860
+	ASM_SIZE_DIRECTIVE(f1)
+        ASM_TYPE_DIRECTIVE(f2,@object)
+f2:	.double 1.50819193781584896
+	ASM_SIZE_DIRECTIVE(f2)
+        ASM_TYPE_DIRECTIVE(f3,@object)
+f3:	.double -2.11499494167371287
+	ASM_SIZE_DIRECTIVE(f3)
+        ASM_TYPE_DIRECTIVE(f4,@object)
+f4:	.double 2.44693122563534430
+	ASM_SIZE_DIRECTIVE(f4)
+        ASM_TYPE_DIRECTIVE(f5,@object)
+f5:	.double -1.83469277483613086
+	ASM_SIZE_DIRECTIVE(f5)
+        ASM_TYPE_DIRECTIVE(f6,@object)
+f6:	.double 0.784932344976639262
+	ASM_SIZE_DIRECTIVE(f6)
+        ASM_TYPE_DIRECTIVE(f7,@object)
+f7:	.double -0.145263899385486377
+	ASM_SIZE_DIRECTIVE(f7)
+
+#define CBRT2 1.2599210498948731648
+#define SQR_CBRT2 1.5874010519681994748
+
+	ASM_TYPE_DIRECTIVE(factor,@object)
+factor:	.double 1.0 / SQR_CBRT2
+	.double 1.0 / CBRT2
+	.double 1.0
+	.double CBRT2
+	.double SQR_CBRT2
+	ASM_SIZE_DIRECTIVE(factor)
+
+        ASM_TYPE_DIRECTIVE(two54,@object)
+two54:  .byte 0, 0, 0, 0, 0, 0, 0x50, 0x43
+        ASM_SIZE_DIRECTIVE(two54)
+
+#ifdef PIC
+#define MO(op) op##@GOTOFF(%ebx)
+#define MOX(op,x,f) op##@GOTOFF(%ebx,x,f)
+#else
+#define MO(op) op
+#define MOX(op,x,f) op(,x,f)
+#endif
+
+	.text
+ENTRY(__cbrt)
+	movl	4(%esp), %ecx
+	movl	8(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+	orl	%eax, %ecx
+	jz	1f
+	xorl	%ecx, %ecx
+	cmpl	$0x7ff00000, %eax
+	jae	1f
+
+#ifdef PIC
+	pushl	%ebx
+	call	3f
+3:	popl	%ebx
+	addl    $_GLOBAL_OFFSET_TABLE_+[.-3b], %ebx
+#endif
+
+	cmpl	$0x00100000, %eax
+	jae	2f
+
+#ifdef PIC
+	fldl	8(%esp)
+#else
+	fldl	4(%esp)
+#endif
+	fmull	MO(two54)
+	movl	$-54, %ecx
+	fstpl	4(%esp)
+	movl	8(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+
+2:	shrl	$20, %eax
+	andl	$0x800fffff, %edx
+	subl	$1022, %eax
+	orl	$0x3fe00000, %edx
+	addl	%eax, %ecx
+#ifdef PIC
+	movl	%edx, 12(%esp)
+
+	fldl	8(%esp)			/* xm */
+#else
+	movl	%edx, 8(%esp)
+
+	fldl	4(%esp)			/* xm */
+#endif
+	fabs
+
+	/* The following code has two track:
+	    a) compute the normalized cbrt value
+	    b) compute xe/3 and xe%3
+	   The right track computes the value for b) and this is done
+	   in an optimized way by avoiding division.  */
+
+	fld	%st(0)			/* xm : xm */
+
+	fmull	MO(f7)			/* f7*xm : xm */
+			movl	$1431655766, %eax
+	faddl	MO(f6)			/* f6+f7*xm : xm */
+			imull	%ecx
+	fmul	%st(1)			/* (f6+f7*xm)*xm : xm */
+			movl	%ecx, %eax
+	faddl	MO(f5)			/* f5+(f6+f7*xm)*xm : xm */
+			sarl	$31, %eax
+	fmul	%st(1)			/* (f5+(f6+f7*xm)*xm)*xm : xm */
+			subl	%eax, %edx
+	faddl	MO(f4)			/* f4+(f5+(f6+f7*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f4+(f5+(f6+f7*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f3)			/* f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f2)			/* f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f1)			/* u:=f1+(f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm)*xm : xm */
+
+	fld	%st			/* u : u : xm */
+	fmul	%st(1)			/* u*u : u : xm */
+	fld	%st(2)			/* xm : u*u : u : xm */
+	fadd	%st			/* 2*xm : u*u : u : xm */
+	fxch	%st(1)			/* u*u : 2*xm : u : xm */
+	fmul	%st(2)			/* t2:=u*u*u : 2*xm : u : xm */
+			movl	%edx, %eax
+	fadd	%st, %st(1)		/* t2 : t2+2*xm : u : xm */
+			leal	(%edx,%edx,2),%edx
+	fadd	%st(0)			/* 2*t2 : t2+2*xm : u : xm */
+			subl	%edx, %ecx
+	faddp	%st, %st(3)		/* t2+2*xm : u : 2*t2+xm */
+	fmulp				/* u*(t2+2*xm) : 2*t2+xm */
+	fdivp	%st, %st(1)		/* u*(t2+2*xm)/(2*t2+xm) */
+	fmull	MOX(16+factor,%ecx,8)	/* u*(t2+2*xm)/(2*t2+xm)*FACT */
+	pushl	%eax
+	fildl	(%esp)			/* xe/3 : u*(t2+2*xm)/(2*t2+xm)*FACT */
+	fxch				/* u*(t2+2*xm)/(2*t2+xm)*FACT : xe/3 */
+	popl	%eax
+	fscale				/* u*(t2+2*xm)/(2*t2+xm)*FACT*2^xe/3 */
+	fstp	%st(1)
+#ifdef PIC
+	popl	%ebx
+#endif
+	testl	$0x80000000, 8(%esp)
+	jz	4f
+	fchs
+4:	ret
+
+	/* Return the argument.  */
+1:	fldl	4(%esp)
+	ret
+END(__cbrt)
+weak_alias (__cbrt, cbrt)
diff --git a/sysdeps/libm-i387/s_cbrtf.S b/sysdeps/libm-i387/s_cbrtf.S
new file mode 100644
index 0000000000..6978da2d40
--- /dev/null
+++ b/sysdeps/libm-i387/s_cbrtf.S
@@ -0,0 +1,166 @@
+/* Compute cubic root of float value.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Dirk Alboth <dirka@uni-paderborn.de> and
+   Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <machine/asm.h>
+
+#ifdef __ELF__
+        .section .rodata
+#else
+        .text
+#endif
+
+        .align ALIGNARG(4)
+        ASM_TYPE_DIRECTIVE(f1,@object)
+f1:	.double 0.492659620528969547
+        ASM_SIZE_DIRECTIVE(f1)
+        ASM_TYPE_DIRECTIVE(f2,@object)
+f2:	.double 0.697570460207922770
+        ASM_SIZE_DIRECTIVE(f2)
+        ASM_TYPE_DIRECTIVE(f3,@object)
+f3:	.double 0.191502161678719066
+        ASM_SIZE_DIRECTIVE(f3)
+
+#define CBRT2 1.2599210498948731648
+#define SQR_CBRT2 1.5874010519681994748
+
+	ASM_TYPE_DIRECTIVE(factor,@object)
+factor:	.double 1.0 / SQR_CBRT2
+	.double 1.0 / CBRT2
+	.double 1.0
+	.double CBRT2
+	.double SQR_CBRT2
+	ASM_SIZE_DIRECTIVE(factor)
+
+        ASM_TYPE_DIRECTIVE(two25,@object)
+two25:	.byte 0, 0, 0, 0x4c
+        ASM_SIZE_DIRECTIVE(two25)
+
+#ifdef PIC
+#define MO(op) op##@GOTOFF(%ebx)
+#define MOX(op,x,f) op##@GOTOFF(%ebx,x,f)
+#else
+#define MO(op) op
+#define MOX(op,x,f) op(,x,f)
+#endif
+
+	.text
+ENTRY(__cbrtf)
+	movl	4(%esp), %eax
+	xorl	%ecx, %ecx
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+	jz	1f
+	cmpl	$0x7f800000, %eax
+	jae	1f
+
+#ifdef PIC
+	pushl	%ebx
+	call	3f
+3:	popl	%ebx
+	addl    $_GLOBAL_OFFSET_TABLE_+[.-3b], %ebx
+#endif
+
+	cmpl	$0x00800000, %eax
+	jae	2f
+
+#ifdef PIC
+	flds	8(%esp)
+#else
+	flds	4(%esp)
+#endif
+	fmuls	MO(two25)
+	movl	$-25, %ecx
+#ifdef PIC
+	fstps	8(%esp)
+	movl	8(%esp), %eax
+#else
+	fstps	4(%esp)
+	movl	4(%esp), %eax
+#endif
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+
+2:	shrl	$23, %eax
+	andl	$0x807fffff, %edx
+	subl	$126, %eax
+	orl	$0x3f000000, %edx
+	addl	%eax, %ecx
+#ifdef PIC
+	movl	%edx, 8(%esp)
+
+	flds	8(%esp)			/* xm */
+#else
+	movl	%edx, 4(%esp)
+
+	flds	4(%esp)			/* xm */
+#endif
+	fabs
+
+	/* The following code has two track:
+	    a) compute the normalized cbrt value
+	    b) compute xe/3 and xe%3
+	   The right track computes the value for b) and this is done
+	   in an optimized way by avoiding division.  */
+
+	fld	%st(0)			/* xm : xm */
+	fmull	MO(f3)			/* f3*xm : xm */
+			movl	$1431655766, %eax
+	fsubrl	MO(f2)			/* f2-f3*xm : xm */
+			imull	%ecx
+	fmul	%st(1)			/* (f2-f3*xm)*xm : xm */
+			movl	%ecx, %eax
+	faddl	MO(f1)			/* u:=f1+(f2-f3*xm)*xm : xm */
+			sarl	$31, %eax
+	fld	%st			/* u : u : xm */
+			subl	%eax, %edx
+	fmul	%st(1)			/* u*u : u : xm */
+	fld	%st(2)			/* xm : u*u : u : xm */
+	fadd	%st			/* 2*xm : u*u : u : xm */
+	fxch	%st(1)			/* u*u : 2*xm : u : xm */
+	fmul	%st(2)			/* t2:=u*u*u : 2*xm : u : xm */
+			movl	%edx, %eax
+	fadd	%st, %st(1)		/* t2 : t2+2*xm : u : xm */
+			leal	(%edx,%edx,2),%edx
+	fadd	%st(0)			/* 2*t2 : t2+2*xm : u : xm */
+			subl	%edx, %ecx
+	faddp	%st, %st(3)		/* t2+2*xm : u : 2*t2+xm */
+	fmulp				/* u*(t2+2*xm) : 2*t2+xm */
+	fdivp	%st, %st(1)		/* u*(t2+2*xm)/(2*t2+xm) */
+	fmull	MOX(16+factor,%ecx,8)	/* u*(t2+2*xm)/(2*t2+xm)*FACT */
+	pushl	%eax
+	fildl	(%esp)			/* xe/3 : u*(t2+2*xm)/(2*t2+xm)*FACT */
+	fxch				/* u*(t2+2*xm)/(2*t2+xm)*FACT : xe/3 */
+	popl	%eax
+	fscale				/* u*(t2+2*xm)/(2*t2+xm)*FACT*2^xe/3 */
+	fstp	%st(1)
+#ifdef PIC
+	popl	%ebx
+#endif
+	testl	$0x80000000, 4(%esp)
+	jz	4f
+	fchs
+4:	ret
+
+	/* Return the argument.  */
+1:	flds	4(%esp)
+	ret
+END(__cbrtf)
+weak_alias (__cbrtf, cbrtf)
diff --git a/sysdeps/libm-i387/s_cbrtl.S b/sysdeps/libm-i387/s_cbrtl.S
new file mode 100644
index 0000000000..b2023d1991
--- /dev/null
+++ b/sysdeps/libm-i387/s_cbrtl.S
@@ -0,0 +1,188 @@
+/* Compute cubic root of long double value.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Dirk Alboth <dirka@uni-paderborn.de> and
+   Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <machine/asm.h>
+
+#ifdef __ELF__
+        .section .rodata
+#else
+        .text
+#endif
+
+        .align ALIGNARG(4)
+        ASM_TYPE_DIRECTIVE(f1,@object)
+f1:	.double 0.338058687610520237
+	ASM_SIZE_DIRECTIVE(f1)
+        ASM_TYPE_DIRECTIVE(f2,@object)
+f2:	.double 1.67595307700780102
+	ASM_SIZE_DIRECTIVE(f2)
+        ASM_TYPE_DIRECTIVE(f3,@object)
+f3:	.double -2.82414939754975962
+	ASM_SIZE_DIRECTIVE(f3)
+        ASM_TYPE_DIRECTIVE(f4,@object)
+f4:	.double 4.09559907378707839
+	ASM_SIZE_DIRECTIVE(f4)
+        ASM_TYPE_DIRECTIVE(f5,@object)
+f5:	.double -4.11151425200350531
+	ASM_SIZE_DIRECTIVE(f5)
+        ASM_TYPE_DIRECTIVE(f6,@object)
+f6:	.double 2.65298938441952296
+	ASM_SIZE_DIRECTIVE(f6)
+        ASM_TYPE_DIRECTIVE(f7,@object)
+f7:	.double -0.988553671195413709
+	ASM_SIZE_DIRECTIVE(f7)
+        ASM_TYPE_DIRECTIVE(f8,@object)
+f8:	.double 0.161617097923756032
+	ASM_SIZE_DIRECTIVE(f8)
+
+#define CBRT2 1.2599210498948731648
+#define SQR_CBRT2 1.5874010519681994748
+
+	ASM_TYPE_DIRECTIVE(factor,@object)
+factor:	.double 1.0 / SQR_CBRT2
+	.double 1.0 / CBRT2
+	.double 1.0
+	.double CBRT2
+	.double SQR_CBRT2
+	ASM_SIZE_DIRECTIVE(factor)
+
+        ASM_TYPE_DIRECTIVE(two64,@object)
+two64:  .byte 0, 0, 0, 0, 0, 0, 0xf0, 0x43
+        ASM_SIZE_DIRECTIVE(two64)
+
+#ifdef PIC
+#define MO(op) op##@GOTOFF(%ebx)
+#define MOX(op,x,f) op##@GOTOFF(%ebx,x,f)
+#else
+#define MO(op) op
+#define MOX(op,x,f) op(,x,f)
+#endif
+
+	.text
+ENTRY(__cbrtl)
+	movl	4(%esp), %ecx
+	movl	12(%esp), %eax
+	orl	8(%esp), %ecx
+	movl	%eax, %edx
+	andl	$0x7fff, %eax
+	orl	%eax, %ecx
+	jz	1f
+	xorl	%ecx, %ecx
+	cmpl	$0x7fff, %eax
+	je	1f
+
+#ifdef PIC
+	pushl	%ebx
+	call	3f
+3:	popl	%ebx
+	addl    $_GLOBAL_OFFSET_TABLE_+[.-3b], %ebx
+#endif
+
+	cmpl	$0, %eax
+	je	2f
+
+#ifdef PIC
+	fldt	8(%esp)
+#else
+	fldt	4(%esp)
+#endif
+	fmull	MO(two64)
+	movl	$-64, %ecx
+	fstpt	4(%esp)
+	movl	12(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fff, %eax
+
+2:	andl	$0x8000, %edx
+	subl	$16382, %eax
+	orl	$0x3ffe, %edx
+	addl	%eax, %ecx
+#ifdef PIC
+	movl	%edx, 16(%esp)
+
+	fldt	8(%esp)			/* xm */
+#else
+	movl	%edx, 12(%esp)
+
+	fldt	4(%esp)			/* xm */
+#endif
+	fabs
+
+	/* The following code has two track:
+	    a) compute the normalized cbrt value
+	    b) compute xe/3 and xe%3
+	   The right track computes the value for b) and this is done
+	   in an optimized way by avoiding division.  */
+
+	fld	%st(0)			/* xm : xm */
+
+	fmull	MO(f7)			/* f7*xm : xm */
+			movl	$1431655766, %eax
+	faddl	MO(f6)			/* f6+f7*xm : xm */
+			imull	%ecx
+	fmul	%st(1)			/* (f6+f7*xm)*xm : xm */
+			movl	%ecx, %eax
+	faddl	MO(f5)			/* f5+(f6+f7*xm)*xm : xm */
+			sarl	$31, %eax
+	fmul	%st(1)			/* (f5+(f6+f7*xm)*xm)*xm : xm */
+			subl	%eax, %edx
+	faddl	MO(f4)			/* f4+(f5+(f6+f7*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f4+(f5+(f6+f7*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f3)			/* f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f2)			/* f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f1)			/* u:=f1+(f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm)*xm : xm */
+
+	fld	%st			/* u : u : xm */
+	fmul	%st(1)			/* u*u : u : xm */
+	fld	%st(2)			/* xm : u*u : u : xm */
+	fadd	%st			/* 2*xm : u*u : u : xm */
+	fxch	%st(1)			/* u*u : 2*xm : u : xm */
+	fmul	%st(2)			/* t2:=u*u*u : 2*xm : u : xm */
+			movl	%edx, %eax
+	fadd	%st, %st(1)		/* t2 : t2+2*xm : u : xm */
+			leal	(%edx,%edx,2),%edx
+	fadd	%st(0)			/* 2*t2 : t2+2*xm : u : xm */
+			subl	%edx, %ecx
+	faddp	%st, %st(3)		/* t2+2*xm : u : 2*t2+xm */
+	fmulp				/* u*(t2+2*xm) : 2*t2+xm */
+	fdivp	%st, %st(1)		/* u*(t2+2*xm)/(2*t2+xm) */
+	fmull	MOX(16+factor,%ecx,8)	/* u*(t2+2*xm)/(2*t2+xm)*FACT */
+	pushl	%eax
+	fildl	(%esp)			/* xe/3 : u*(t2+2*xm)/(2*t2+xm)*FACT */
+	fxch				/* u*(t2+2*xm)/(2*t2+xm)*FACT : xe/3 */
+	popl	%eax
+	fscale				/* u*(t2+2*xm)/(2*t2+xm)*FACT*2^xe/3 */
+	fstp	%st(1)
+#ifdef PIC
+	popl	%ebx
+#endif
+	testl	$0x8000, 12(%esp)
+	jz	4f
+	fchs
+4:	ret
+
+	/* Return the argument.  */
+1:	fldt	4(%esp)
+	ret
+END(__cbrtl)
+weak_alias (__cbrtl, cbrtl)
diff --git a/sysdeps/libm-i387/s_frexp.S b/sysdeps/libm-i387/s_frexp.S
new file mode 100644
index 0000000000..6a05f26720
--- /dev/null
+++ b/sysdeps/libm-i387/s_frexp.S
@@ -0,0 +1,82 @@
+/* ix87 specific frexp implementation for double.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <machine/asm.h>
+
+#ifdef __ELF__
+	.section .rodata
+#else
+	.text
+#endif
+
+	.align ALIGNARG(4)
+	ASM_TYPE_DIRECTIVE(two54,@object)
+two54:	.byte 0, 0, 0, 0, 0, 0, 0x50, 0x43
+	ASM_SIZE_DIRECTIVE(two54)
+
+#ifdef PIC
+#define MO(op) op##@GOTOFF(%edx)
+#else
+#define MO(op) op
+#endif
+
+	.text
+ENTRY(__frexp)
+	movl	4(%esp), %ecx
+	movl	8(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+	orl	%eax, %ecx
+	jz	1f
+	xorl	%ecx, %ecx
+	cmpl	$0x7ff00000, %eax
+	jae	1f
+
+	cmpl	$0x00100000, %eax
+	jae	2f
+
+	fldl	4(%esp)
+#ifdef	PIC
+	call	3f
+3:	popl	%edx
+	addl	$_GLOBAL_OFFSET_TABLE_+[.-3b], %edx
+#endif
+	fmull	MO(two54)
+	movl	$-54, %ecx
+	fstpl	4(%esp)
+	movl	8(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+
+2:	shrl	$20, %eax
+	andl	$0x800fffff, %edx
+	subl	$1022, %eax
+	orl	$0x3fe00000, %edx
+	addl	%eax, %ecx
+	movl	%edx, 8(%esp)
+
+	/* Store %ecx in the variable pointed to by the second argument,
+	   get the factor from the stack and return.  */
+1:	movl	12(%esp), %eax
+	fldl	4(%esp)
+	movl	%ecx, (%eax)
+	ret
+END(__frexp)
+weak_alias (__frexp, frexp)
diff --git a/sysdeps/libm-i387/s_frexpf.S b/sysdeps/libm-i387/s_frexpf.S
new file mode 100644
index 0000000000..1021b97aee
--- /dev/null
+++ b/sysdeps/libm-i387/s_frexpf.S
@@ -0,0 +1,80 @@
+/* ix87 specific frexp implementation for float.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <machine/asm.h>
+
+#ifdef __ELF__
+	.section .rodata
+#else
+	.text
+#endif
+
+	.align ALIGNARG(4)
+	ASM_TYPE_DIRECTIVE(two25,@object)
+two25:	.byte 0, 0, 0, 0x4c
+	ASM_SIZE_DIRECTIVE(two25)
+
+#ifdef PIC
+#define MO(op) op##@GOTOFF(%edx)
+#else
+#define MO(op) op
+#endif
+
+	.text
+ENTRY(__frexpf)
+	movl	4(%esp), %eax
+	xorl	%ecx, %ecx
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+	jz	1f
+	cmpl	$0x7f800000, %eax
+	jae	1f
+
+	cmpl	$0x00800000, %eax
+	jae	2f
+
+	flds	4(%esp)
+#ifdef	PIC
+	call	3f
+3:	popl	%edx
+	addl	$_GLOBAL_OFFSET_TABLE_+[.-3b], %edx
+#endif
+	fmuls	MO(two25)
+	movl	$-25, %ecx
+	fstps	4(%esp)
+	movl	4(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+
+2:	shrl	$23, %eax
+	andl	$0x807fffff, %edx
+	subl	$126, %eax
+	orl	$0x3f000000, %edx
+	addl	%eax, %ecx
+	movl	%edx, 4(%esp)
+
+	/* Store %ecx in the variable pointed to by the second argument,
+	   get the factor from the stack and return.  */
+1:	movl	8(%esp), %eax
+	flds	4(%esp)
+	movl	%ecx, (%eax)
+	ret
+END(__frexpf)
+weak_alias (__frexpf, frexpf)
diff --git a/sysdeps/libm-i387/s_frexpl.S b/sysdeps/libm-i387/s_frexpl.S
new file mode 100644
index 0000000000..e3019ced6d
--- /dev/null
+++ b/sysdeps/libm-i387/s_frexpl.S
@@ -0,0 +1,82 @@
+/* ix87 specific frexp implementation for long double.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <machine/asm.h>
+
+#ifdef __ELF__
+	.section .rodata
+#else
+	.text
+#endif
+
+	.align ALIGNARG(4)
+	ASM_TYPE_DIRECTIVE(two64,@object)
+two64:	.byte 0, 0, 0, 0, 0, 0, 0xf0, 0x43
+	ASM_SIZE_DIRECTIVE(two64)
+
+#ifdef PIC
+#define MO(op) op##@GOTOFF(%edx)
+#else
+#define MO(op) op
+#endif
+
+	.text
+ENTRY(__frexpl)
+	movl	4(%esp), %ecx
+	movl	12(%esp), %eax
+	orl	8(%esp), %ecx
+	movl	%eax, %edx
+	andl	$0x7fff, %eax
+	orl	%eax, %ecx
+	jz	1f
+	xorl	%ecx, %ecx
+	cmpl	$0x7fff, %eax
+	je	1f
+
+	cmpl	$0, %eax
+	je	2f
+
+	fldt	4(%esp)
+#ifdef	PIC
+	call	3f
+3:	popl	%edx
+	addl	$_GLOBAL_OFFSET_TABLE_+[.-3b], %edx
+#endif
+	fmull	MO(two64)	/* It's not necessary to use a 80bit factor */
+	movl	$-64, %ecx
+	fstpt	4(%esp)
+	movl	12(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fff, %eax
+
+2:	andl	$0x8000, %edx
+	subl	$16382, %eax
+	orl	$0x3ffe, %edx
+	addl	%eax, %ecx
+	movl	%edx, 12(%esp)
+
+	/* Store %ecx in the variable pointed to by the second argument,
+	   get the factor from the stack and return.  */
+1:	movl	16(%esp), %eax
+	fldt	4(%esp)
+	movl	%ecx, (%eax)
+	ret
+END(__frexpl)
+weak_alias (__frexpl, frexpl)
diff --git a/sysdeps/libm-ieee754/s_cbrt.c b/sysdeps/libm-ieee754/s_cbrt.c
index 24a9c9adbd..a5033ff468 100644
--- a/sysdeps/libm-ieee754/s_cbrt.c
+++ b/sysdeps/libm-ieee754/s_cbrt.c
@@ -1,95 +1,71 @@
-/* @(#)s_cbrt.c 5.1 93/09/24 */
-/*
- * ====================================================
- * 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.
- * ====================================================
- */
+/* Compute cubic root of double value.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Dirk Alboth <dirka@uni-paderborn.de> and
+   Ulrich Drepper <drepper@cygnus.com>, 1997.
 
-#if defined(LIBM_SCCS) && !defined(lint)
-static char rcsid[] = "$NetBSD: s_cbrt.c,v 1.8 1995/05/10 20:46:49 jtc Exp $";
-#endif
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 #include "math.h"
 #include "math_private.h"
 
-/* cbrt(x)
- * Return cube root of x
- */
-#ifdef __STDC__
-static const u_int32_t
-#else
-static u_int32_t
-#endif
-	B1 = 715094163, /* B1 = (682-0.03306235651)*2**20 */
-	B2 = 696219795; /* B2 = (664-0.03306235651)*2**20 */
 
-#ifdef __STDC__
-static const double
-#else
-static double
-#endif
-C =  5.42857142857142815906e-01, /* 19/35     = 0x3FE15F15, 0xF15F15F1 */
-D = -7.05306122448979611050e-01, /* -864/1225 = 0xBFE691DE, 0x2532C834 */
-E =  1.41428571428571436819e+00, /* 99/70     = 0x3FF6A0EA, 0x0EA0EA0F */
-F =  1.60714285714285720630e+00, /* 45/28     = 0x3FF9B6DB, 0x6DB6DB6E */
-G =  3.57142857142857150787e-01; /* 5/14      = 0x3FD6DB6D, 0xB6DB6DB7 */
+#define CBRT2 1.2599210498948731648		/* 2^(1/3) */
+#define SQR_CBRT2 1.5874010519681994748		/* 2^(2/3) */
 
-#ifdef __STDC__
-	double __cbrt(double x)
-#else
-	double __cbrt(x)
-	double x;
-#endif
+static const double factor[5] =
 {
-	int32_t	hx;
-	double r,s,t=0.0,w;
-	u_int32_t sign;
-	u_int32_t high,low;
+  1.0 / SQR_CBRT2,
+  1.0 / CBRT2,
+  1.0,
+  CBRT2,
+  SQR_CBRT2
+};
 
-	GET_HIGH_WORD(hx,x);
-	sign=hx&0x80000000; 		/* sign= sign(x) */
-	hx  ^=sign;
-	if(hx>=0x7ff00000) return(x+x); /* cbrt(NaN,INF) is itself */
-	GET_LOW_WORD(low,x);
-	if((hx|low)==0)
-	    return(x);		/* cbrt(0) is itself */
 
-	SET_HIGH_WORD(x,hx);	/* x <- |x| */
-    /* rough cbrt to 5 bits */
-	if(hx<0x00100000) 		/* subnormal number */
-	  {SET_HIGH_WORD(t,0x43500000);	/* set t= 2**54 */
-	   t*=x; GET_HIGH_WORD(high,t); SET_HIGH_WORD(t,high/3+B2);
-	  }
-	else
-	  SET_HIGH_WORD(t,hx/3+B1);
+double
+__cbrt (double x)
+{
+  double xm, ym, u, t2;
+  int xe;
 
+  /* Reduce X.  XM now is an range 1.0 to 0.5.  */
+  xm = __frexp (fabs (x), &xe);
 
-    /* new cbrt to 23 bits, may be implemented in single precision */
-	r=t*t/x;
-	s=C+r*t;
-	t*=G+F/(s+E+D/s);
+  /* If X is not finite or is null return it (with raising exceptions
+     if necessary.  */
+  if (xe == 0)
+    return x + x;
 
-    /* chopped to 20 bits and make it larger than cbrt(x) */
-	GET_HIGH_WORD(high,t);
-	INSERT_WORDS(t,high+0x00000001,0);
+ u = (0.354895765043919860
+      + ((1.50819193781584896
+	 + ((-2.11499494167371287
+	    + ((2.44693122563534430
+	       + ((-1.83469277483613086
+		  + (0.784932344976639262 - 0.145263899385486377 * xm) * xm)
+		  * xm))
+	       * xm))
+	    * xm))
+	 * xm));
 
+  t2 = u * u * u;
 
-    /* one step newton iteration to 53 bits with error less than 0.667 ulps */
-	s=t*t;		/* t*t is exact */
-	r=x/s;
-	w=t+t;
-	r=(r-t)/(w+r);	/* r-s is exact */
-	t=t+t*r;
+  ym = u * (t2 + 2.0 * xm) / (2.0 * t2 + xm) * factor[2 + xe % 3];
 
-    /* retore the sign bit */
-	GET_HIGH_WORD(high,t);
-	SET_HIGH_WORD(t,high|sign);
-	return(t);
+  return __ldexp (x > 0.0 ? ym : -ym, xe / 3);
 }
 weak_alias (__cbrt, cbrt)
 #ifdef NO_LONG_DOUBLE
diff --git a/sysdeps/libm-ieee754/s_cbrtf.c b/sysdeps/libm-ieee754/s_cbrtf.c
index a2b3c8106c..f9f687c011 100644
--- a/sysdeps/libm-ieee754/s_cbrtf.c
+++ b/sysdeps/libm-ieee754/s_cbrtf.c
@@ -1,84 +1,62 @@
-/* s_cbrtf.c -- float version of s_cbrt.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: s_cbrtf.c,v 1.4 1995/05/10 20:46:51 jtc Exp $";
-#endif
+/* Compute cubic root of float value.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Dirk Alboth <dirka@uni-paderborn.de> and
+   Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 #include "math.h"
 #include "math_private.h"
 
-/* cbrtf(x)
- * Return cube root of x
- */
-#ifdef __STDC__
-static const unsigned 
-#else
-static unsigned 
-#endif
-	B1 = 709958130, /* B1 = (84+2/3-0.03306235651)*2**23 */
-	B2 = 642849266; /* B2 = (76+2/3-0.03306235651)*2**23 */
 
-#ifdef __STDC__
-static const float
-#else
-static float
-#endif
-C =  5.4285717010e-01, /* 19/35     = 0x3f0af8b0 */
-D = -7.0530611277e-01, /* -864/1225 = 0xbf348ef1 */
-E =  1.4142856598e+00, /* 99/70     = 0x3fb50750 */
-F =  1.6071428061e+00, /* 45/28     = 0x3fcdb6db */
-G =  3.5714286566e-01; /* 5/14      = 0x3eb6db6e */
+#define CBRT2 1.2599210498948731648		/* 2^(1/3) */
+#define SQR_CBRT2 1.5874010519681994748		/* 2^(2/3) */
+
+static const double factor[5] =
+{
+  1.0 / SQR_CBRT2,
+  1.0 / CBRT2,
+  1.0,
+  CBRT2,
+  SQR_CBRT2
+};
+
 
-#ifdef __STDC__
-	float __cbrtf(float x) 
-#else
-	float __cbrtf(x) 
-	float x;
-#endif
+float
+__cbrtf (float x)
 {
-	float r,s,t;
-	int32_t hx;
-	u_int32_t sign;
-	u_int32_t high;
+  float xm, ym, u, t2;
+  int xe;
+
+  /* Reduce X.  XM now is an range 1.0 to 0.5.  */
+  xm = __frexpf (fabsf (x), &xe);
 
-	GET_FLOAT_WORD(hx,x);
-	sign=hx&0x80000000; 		/* sign= sign(x) */
-	hx  ^=sign;
-	if(hx>=0x7f800000) return(x+x); /* cbrt(NaN,INF) is itself */
-	if(hx==0) 
-	    return(x);		/* cbrt(0) is itself */
+  /* If X is not finite or is null return it (with raising exceptions
+     if necessary.  */
+  if (xe == 0)
+    return x + x;
 
-	SET_FLOAT_WORD(x,hx);	/* x <- |x| */
-    /* rough cbrt to 5 bits */
-	if(hx<0x00800000) 		/* subnormal number */
-	  {SET_FLOAT_WORD(t,0x4b800000); /* set t= 2**24 */
-	   t*=x; GET_FLOAT_WORD(high,t); SET_FLOAT_WORD(t,high/3+B2);
-	  }
-	else
-	  SET_FLOAT_WORD(t,hx/3+B1);
+  u = (0.492659620528969547 + (0.697570460207922770
+			       - 0.191502161678719066 * xm) * xm);
 
+  t2 = u * u * u;
 
-    /* new cbrt to 23 bits */
-	r=t*t/x;
-	s=C+r*t;
-	t*=G+F/(s+E+D/s);	
+  ym = u * (t2 + 2.0 * xm) / (2.0 * t2 + xm) * factor[2 + xe % 3];
 
-    /* retore the sign bit */
-	GET_FLOAT_WORD(high,t);
-	SET_FLOAT_WORD(t,high|sign);
-	return(t);
+  return __ldexpf (x > 0.0 ? ym : -ym, xe / 3);
 }
 weak_alias (__cbrtf, cbrtf)
diff --git a/sysdeps/libm-ieee754/s_cbrtl.c b/sysdeps/libm-ieee754/s_cbrtl.c
index 21e7727728..b3a53a39e1 100644
--- a/sysdeps/libm-ieee754/s_cbrtl.c
+++ b/sysdeps/libm-ieee754/s_cbrtl.c
@@ -1,122 +1,76 @@
-/* s_cbrtl.c -- long double version of s_cbrt.c.
- * Conversion to long double by Ulrich Drepper,
- * Cygnus Support, drepper@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: $";
-#endif
+/* Compute cubic root of double value.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Dirk Alboth <dirka@uni-paderborn.de> and
+   Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 #include "math.h"
 #include "math_private.h"
 
-/* cbrtl(x)
- * Return cube root of x
- */
-#ifdef __STDC__
-static const u_int32_t
-#else
-static u_int32_t
-#endif
-	B1_EXP = 10921,		/* = Int(B1) */
-	B1_MANT = 0x7bc4b064,	/* = Int(1.0-0.03306235651)*2**31 */
-
-	B2_EXP = 10900,
-	B2_MANT = 0x7bc4b064;	/* = Int(1.0-0.03306235651)*2**31 */
 
-#ifdef __STDC__
-static const long double
-#else
-static long double
-#endif
-C =  5.42857142857142815906e-01L, /* 19/35 */
-D = -7.05306122448979611050e-01L, /* -864/1225 */
-E =  1.41428571428571436819e+00L, /* 99/70 */
-F =  1.60714285714285720630e+00L, /* 45/28 */
-G =  3.57142857142857150787e-01L; /* 5/14 */
+#define CBRT2 1.2599210498948731648		/* 2^(1/3) */
+#define SQR_CBRT2 1.5874010519681994748		/* 2^(2/3) */
 
-#ifdef __STDC__
-	long double __cbrtl(long double x)
-#else
-	long double __cbrtl(x)
-	long double x;
-#endif
+/* We don't use long double values here since U need not be computed
+   with full precision.  */
+static const double factor[5] =
 {
-	long double r,s,t=0.0,w;
-	u_int32_t sign, se, x0, x1;
-
-	GET_LDOUBLE_WORDS(se,x0,x1,x);
-	sign=se&0x8000; 		/* sign= sign(x) */
-	se ^= sign;
-	if(se==0x7fff) return(x+x); /* cbrt(NaN,INF) is itself */
-	if((se|x0|x1)==0)
-	    return(x);		/* cbrt(0) is itself */
-
-	SET_LDOUBLE_EXP(x,se);	/* x <- |x| */
-
-/* XXX I don't know whether the numbers for correct are correct.  The
-   precalculation is extended from 20 bits to 32 bits.  This hopefully
-   gives us the needed bits to get us still along with one iteration
-   step.  */
+  1.0 / SQR_CBRT2,
+  1.0 / CBRT2,
+  1.0,
+  CBRT2,
+  SQR_CBRT2
+};
 
-    /* rough cbrt to 5 bits */
-	if(se==0) 		/* subnormal number */
-	  {
-	    u_int64_t xxl;
-	    u_int32_t set,t0,t1;
-	    SET_LDOUBLE_EXP(t,0x4035);	/* set t= 2**54 */
-	    SET_LDOUBLE_MSW(t,0x80000000);
-	    t*=x;
-	    GET_LDOUBLE_WORDS(set,t0,t1,t);
-	    xxl = ((u_int64_t) set) << 32 | t0;
-	    xxl /= 3;
-	    xxl += B2_EXP << 16 | B2_MANT;
-	    t0 = xxl & 0xffffffffu;
-	    set = xxl >> 32;
-	    SET_LDOUBLE_WORDS(t,set,t0,t1);
-	  }
-	else
-	  {
-	    u_int64_t xxl = ((u_int64_t) se) << 32 | x0;
-	    xxl /= 3;
-	    xxl += ((u_int64_t) B1_EXP) << 32 | B1_MANT;
-	    SET_LDOUBLE_MSW(t,xxl&0xffffffffu);
-	    xxl >>= 32;
-	    SET_LDOUBLE_EXP(t,xxl);
-	  }
 
-
-    /* new cbrt to 23 bits, may be implemented in single precision */
-	r=t*t/x;
-	s=C+r*t;
-	t*=G+F/(s+E+D/s);
-
-    /* chopped to 32 bits and make it larger than cbrt(x) */
-	GET_LDOUBLE_WORDS(se,x0,x1,t);
-	SET_LDOUBLE_WORDS(t,se,x0+1,0);
-
-
-    /* one step newton iteration to 53 bits with error less than 0.667 ulps */
-	s=t*t;		/* t*t is exact */
-	r=x/s;
-	w=t+t;
-	r=(r-t)/(w+r);	/* r-s is exact */
-	t=t+t*r;
-
-    /* retore the sign bit */
-	GET_LDOUBLE_EXP(se,t);
-	SET_LDOUBLE_EXP(t,se|sign);
-	return(t);
+long double
+__cbrtl (long double x)
+{
+  long double xm, ym, u, t2;
+  int xe;
+
+  /* Reduce X.  XM now is an range 1.0 to 0.5.  */
+  xm = __frexpl (fabs (x), &xe);
+
+  /* If X is not finite or is null return it (with raising exceptions
+     if necessary.  */
+  if (xe == 0)
+    return x + x;
+
+  u = (0.338058687610520237
+       + (1.67595307700780102
+	  + (-2.82414939754975962
+	     + (4.09559907378707839 +
+		(-4.11151425200350531
+		 + (2.65298938441952296 +
+		    (-0.988553671195413709
+		     + 0.161617097923756032 * xm)
+		    * xm)
+		 * xm)
+		* xm)
+	     * xm)
+	  * xm)
+       *xm);
+
+  t2 = u * u * u;
+
+  ym = u * (t2 + 2.0 * xm) / (2.0 * t2 + xm) * factor[2 + xe % 3];
+
+  return __ldexpl (x > 0.0 ? ym : -ym, xe / 3);
 }
 weak_alias (__cbrtl, cbrtl)
diff --git a/sysdeps/libm-ieee754/s_nan.c b/sysdeps/libm-ieee754/s_nan.c
index 35d92646c0..1d2319cbd8 100644
--- a/sysdeps/libm-ieee754/s_nan.c
+++ b/sysdeps/libm-ieee754/s_nan.c
@@ -19,6 +19,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <math.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ieee754.h>
diff --git a/sysdeps/libm-ieee754/s_nanf.c b/sysdeps/libm-ieee754/s_nanf.c
index 8e6e3fc1fd..56fb9e7e3d 100644
--- a/sysdeps/libm-ieee754/s_nanf.c
+++ b/sysdeps/libm-ieee754/s_nanf.c
@@ -19,6 +19,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <math.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ieee754.h>
diff --git a/sysdeps/libm-ieee754/s_nanl.c b/sysdeps/libm-ieee754/s_nanl.c
index 1cd026e00c..279e070492 100644
--- a/sysdeps/libm-ieee754/s_nanl.c
+++ b/sysdeps/libm-ieee754/s_nanl.c
@@ -19,6 +19,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <math.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ieee754.h>
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 888ab9bd85..4e698ce1d8 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -53,7 +53,7 @@ inhibit-siglist := yes
 endif
 
 ifeq ($(subdir),inet)
-sysdep_headers += netinet/in_systm.h netinet/udp.h netinet/icmp.h \
+sysdep_headers += netinet/in_systm.h netinet/udp.h \
 		  netinet/if_fddi.h netinet/if_tr.h netinet/igmp.h \
 		  netinet/ip_fw.h  netinet/ip_icmp.h sys/socketvar.h
 endif
diff --git a/sysdeps/unix/sysv/linux/sigset.h b/sysdeps/unix/sysv/linux/sigset.h
index 62e668773c..741ff9ac9d 100644
--- a/sysdeps/unix/sysv/linux/sigset.h
+++ b/sysdeps/unix/sysv/linux/sigset.h
@@ -75,7 +75,7 @@ typedef struct
 		    int __ret = __set->__val[--__cnt];			      \
 		    while (!__ret && --__cnt >= 0)			      \
 			__ret = __set->__val[__cnt];			      \
-		    __ret; }))
+		    __ret == 0; }))
 # define __sigandset(dest, left, right) \
   (__extension__ ({ int __cnt = _SIGSET_NWORDS;				      \
 		    sigset_t *__dest = (dest);				      \
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-14 15:22:49 +0000