Update.cvs/libc-ud-970723

1997-07-24 03:14  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dl-deps.c: Complete rewrite to handle DT_AUXILIARY correctly.

	* inet/Makefile (tests): Add htontest.
	* inet/htontest.c: New file.

	* inet/netinet/in.h: Cleanup optimization of ntoh/hton functions
	when they are no noops.
	* sysdeps/alpha/htonl.S: Don't define __ protected names.
	* sysdeps/alpha/htons.S: Likewise.
	* sysdeps/generic/htonl.c: Likewise.
	* sysdeps/generic/htons.c: Likewise.
	* sysdeps/i386/htonl.S: Likewise.
	* sysdeps/i386/htons.S: Likewise.
	* sysdeps/i386/i486/htonl.S: Likewise.
	* sysdeps/vax/htonl.s: Likewise.
	* sysdeps/vax/htons.s: Likewise.

	* string/Makefile (headers): Add byteswap.h and bits/byteswap.h.
	* string/byteswap.h: New file.
	* sysdeps/generic/bits/byteswap.h: New file.
	* sysdeps/i386/bits/byteswap.h: New file.
	* sysdeps/generic/bits/htontoh.h: Removed.
	* sysdeps/i386/bits/htontoh.h: Removed.

	* misc/search.h: General cleanup.  Don't define reentrant hsearch
	functions uless __USE_GNU.

	* nss/nsswitch.c: Pretty print.

	* sunrpc/clnt_udp.c (clntudp_call): Initialize outlen to prevent
	warning.

	* sysdeps/unix/i386/sysdep.h (DO_CALL): Use lcall, binutils have
	been fixed meanwhile.
	Reported by Zack Weinberg <zack@rabi.phys.columbia.edu>.

1997-07-24 00:53  Philip Blundell  <Philip.Blundell@pobox.com>

	* db/hash/hash.c (init_hash): Only use statbuf.st_blksize if it
	exists for this port.

1997-07-24 00:12  Philip Blundell  <Philip.Blundell@pobox.com>

	* sysdeps/standalone/arm/bits/errno.h (ESTALE): Add.

1997-07-22  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/argp.texi (Argp Option Vectors): Use @minus, not @math,
	to format a proper minus sign.

1997-07-22  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/fpu/fraiseexcpt.c: Don't handle FE_INEXACT
	specially, the standard doesn't require it.

	* math/test-fenv.c (test_exceptions): Add IGNORE_INEXACT argument,
	if non-zero then don't test inexact flag.  Callers changed.
	(set_single_exc): Ignore inexact flag if underflow or overflow
	exception is raised.

1997-07-23 05:10  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/sys/fsuid.h: New file.
	Provided by Michael Deutschmann <ldeutsch@mail.netshop.net>.
	* sysdeps/unix/sysv/linux/Makefile (headers): Add sys/fsuid.h.
	* sysdeps/unix/sysv/linux/Dist: Add sys/fsuid.h.

1997-07-16 10:09  Fila Kolodny  <fila@ibi.com>

	* resolv/gethnamaddr.c: Define MAXHOSTNAMELEN as 256, since RFC 1034
	and 1035 state that a fully qualified domain name cannot exceed 255
	octets in length.
	* resolv/nss_dns/dns-host.c: Likewise.

1997-07-22 09:54  H.J. Lu   <hjl@gnu.ai.mit.edu>

	* inet/netinet/in.h (htons): Fix typos.

	* sysdeps/i386/bits/htontoh.h (__ntohs): Return the value.

1997-07-22 11:47  Ulrich Drepper  <drepper@cygnus.com>

	* nss/nsswitch.c (nss_lookup_function): Include function.def, not
	functions.def.
	Patch by Klaus Espenlaub <kespenla@hydra.informatik.uni-ulm.de>.

5 files changed, 101 insertions, 94 deletions

diff --git a/sysdeps/i386/bits/byteswap.h b/sysdeps/i386/bits/byteswap.h
new file mode 100644
index 0000000..326962e
--- /dev/null
+++ b/sysdeps/i386/bits/byteswap.h
@@ -0,0 +1,92 @@
+/* Macros to swap the order of bytes in integer values.
+   Copyright (C) 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 _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H	1
+
+/* Swap bytes in 16 bit value.  */
+#define __bswap_constant_16(x) \
+     ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
+
+#if defined __GNUC__ && __GNUC__ >= 2
+# define __bswap_16(x) \
+     ({ register unsigned short int __v;				      \
+	if (__builtin_constant_p (x))					      \
+	  __v = __bswap_constant_16 (x);				      \
+	else								      \
+	  __asm__ __volatile__ ("rorw $8, %w0"				      \
+				: "=q" (__v)				      \
+				: "0" ((unsigned short int) (x))	      \
+				: "cc");				      \
+	__v; })
+#else
+/* This is better than nothing.  */
+# define __bswap_16(x) __bswap_constant_16 (x)
+#endif
+
+
+/* Swap bytes in 32 bit value.  */
+#define __bswap_constant_32(x) \
+     ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >>  8) |		      \
+      (((x) & 0x0000ff00) <<  8) | (((x) & 0x000000ff) << 24))
+
+#if defined __GNUC__ && __GNUC__ >= 2
+/* To swap the bytes in a word the i486 processors and up provide the
+   `bswap' opcode.  On i386 we have to use three instructions.  */
+# if !defined __i486__ && !defined __pentium__ && !defined __pentiumpro__
+#  define __bswap_32(x) \
+     ({ register unsigned int __v;					      \
+	if (__builtin_constant_p (x))					      \
+	  __v = __bswap_constant_32 (x);				      \
+	else								      \
+	  __asm__ __volatile__ ("rorw $8, %w0;"				      \
+				"rorl $16, %0;"				      \
+				"rorw $8, %w0"				      \
+				: "=q" (__v)				      \
+				: "0" ((unsigned int) (x))		      \
+				: "cc");				      \
+	__v; })
+# else
+#  define __bswap_32(x) \
+     ({ register unsigned int __v;					      \
+	if (__builtin_constant_p (x))					      \
+	  __v = __bswap_constant_32 (x);				      \
+	else								      \
+	  __asm__ __volatile__ ("bswap %0"				      \
+				: "=r" (__v)				      \
+				: "0" ((unsigned int) (x)));		      \
+	__v; })
+# endif
+#else
+# define __bswap_32(x) __bswap_constant_32 (x)
+#endif
+
+
+#if defined __GNUC__ && __GNUC__ >= 2
+/* Swap bytes in 64 bit value.  */
+# define __bswap_64(x) \
+     ({ union { unsigned long long int __ll;				      \
+		unsigned long int __l[2]; } __v, __r;			      \
+        __v.__ll = (x);							      \
+	__r.__l[0] = __bswap_32 (__v.__l[1]);				      \
+	__r.__l[1] = __bswap_32 (__v.__l[0]);				      \
+	__r.__ll; })
+#endif
+
+#endif /* bits/byteswap.h */
diff --git a/sysdeps/i386/bits/htontoh.h b/sysdeps/i386/bits/htontoh.h
deleted file mode 100644
index 590b509..0000000
--- a/sysdeps/i386/bits/htontoh.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/* Copyright (C) 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 _NETINET_IN_H
-# error "Don't include this file directly, use <netinet/in.h>"
-#endif
-
-#if defined __GNUC__ && __GNUC__ >= 2
-/* We can use inline assembler instructions to optimize the code.  */
-
-/* To swap the bytes in a word the i486 processors and up provide the
-   `bswap' opcode.  On i386 we have to use three instructions.  */
-# if !defined __i486__ && !defined __pentium__ && !defined __pentiumpro__
-
-extern __inline u_int32_t
-__ntohl (u_int32_t netlong)
-{
-  register u_int32_t hostlong;
-
-  __asm__ ("rorw $8, %w0; rorl $16, %0; rorw $8, %w0"
-	   : "=r" (hostlong)
-	   : "0" (netlong));
-
-  return hostlong;
-}
-
-# else
-
-extern __inline u_int32_t
-__ntohl (u_int32_t netlong)
-{
-  register u_int32_t hostlong;
-
-  __asm__ ("bswap %0" : "=r" (hostlong) : "0" (netlong));
-
-  return hostlong;
-}
-
-# endif
-
-/* For a short word we have a simple solution.  */
-extern __inline u_int16_t
-__ntohs (u_int16_t netshort)
-{
-  register u_int16_t hostshort;
-
-  __asm__ ("rorw $8, %w0" : "=r" (hostshort) : "0" (netshort));
-}
-
-
-/* The other direction can be handled with the same functions.  */
-extern __inline u_int32_t
-__htonl (u_int32_t hostlong)
-{
-  return __ntohl (hostlong);
-}
-
-extern __inline u_int16_t
-__htons (u_int16_t hostshort)
-{
-  return __ntohs (hostshort);
-}
-
-#endif /* GNU CC */
diff --git a/sysdeps/i386/htonl.S b/sysdeps/i386/htonl.S
index 73dd1e9..9c87be6 100644
--- a/sysdeps/i386/htonl.S
+++ b/sysdeps/i386/htonl.S
@@ -26,14 +26,12 @@
 */
 
 	.text
-ENTRY (__htonl)
+ENTRY (htonl)
 	movl	4(%esp), %eax
 	rorw	$8, %ax
 	rorl	$16, %eax
 	rorw	$8, %ax
 	ret
-END (__htonl)
+END (htonl)
 
-strong_alias (__htonl, __ntohl)
-weak_alias (__htonl, htonl)
-weak_alias (__ntohl, ntohl)
+weak_alias (htonl, ntohl)
diff --git a/sysdeps/i386/htons.S b/sysdeps/i386/htons.S
index 5d0f59c..b0539c5 100644
--- a/sysdeps/i386/htons.S
+++ b/sysdeps/i386/htons.S
@@ -26,13 +26,11 @@
 */
 
 	.text
-ENTRY (__htons)
+ENTRY (htons)
 	movl	4(%esp), %eax
 	andl	$0xffff, %eax
 	rorw	$8, %ax
 	ret
-END (__htons)
+END (htons)
 
-strong_alias (__htons, __ntohs)
-weak_alias (__htons, htons)
-weak_alias (__ntohs, ntohs)
+weak_alias (htons, ntohs)
diff --git a/sysdeps/i386/i486/htonl.S b/sysdeps/i386/i486/htonl.S
index cf3a94f..a61b339 100644
--- a/sysdeps/i386/i486/htonl.S
+++ b/sysdeps/i386/i486/htonl.S
@@ -26,12 +26,10 @@
 */
 
 	.text
-ENTRY (__htonl)
+ENTRY (htonl)
 	movl	4(%esp), %eax
 	bswap	%eax
 	ret
-END (__htonl)
+END (htonl)
 
-strong_alias (__htonl, __ntohl)
-weak_alias (__htonl, htonl)
-weak_alias (__ntohl, ntohl)
+weak_alias (htonl, ntohl)