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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 v1.2.3 (git 2.39.1) at 2024-04-27 21:49:29 +0000