* csu/Versions: Use %include <tls.h> to get USE_TLS defined.

(libc: GLIBC_2.0) [USE_TLS && HAVE___THREAD]: Remove _errno, errno.
	(libc: GLIBC_2.3) [USE_TLS && HAVE___THREAD]: Put errno here instead.
	* resolv/Versions: Use %include <tls.h> to get USE_TLS defined.
	(libc: GLIBC_2.0) [USE_TLS && HAVE___THREAD]: Remove _h_errno, h_errno,
	and _res.
	(libc: GLIBC_2.3) [USE_TLS && HAVE___THREAD]: Put h_errno, _res here.

	* elf/tls-macros.h [__x86_64__] (TLS_LE, TLS_IE, TLS_LD, TLS_GD):
	New macros for x86-64.

	* sysdeps/unix/sysv/linux/alpha/bits/time.h: File removed.
	It was indentical to the linux/bits/time.h file.

	* nscd/nscd_gethst_r.c (nscd_gethst_r): Add a cast to silence warning.

	* resolv/gethnamaddr.c (gethostbyaddr): Use socklen_t for SIZE.

linuxthreads/ChangeLog

@@ -1,3 +1,11 @@
+2002-09-24  Roland McGrath  <roland@redhat.com>
+
+	* sysdeps/x86_64/tls.h: New file.
+
+2002-09-23  Roland McGrath  <roland@redhat.com>
+
+	* Examples/ex13.c (dump_mut): int -> size_t for counter.
+
 2002-09-18  Bruno Haible  <bruno@clisp.org>
 
 	* Examples/ex10.c (thread): Fail if pthread_mutex_timedlock() returns

linuxthreads/Examples/ex13.c

@@ -1,5 +1,5 @@
 /* Test for Pthreads/mutexes.
-   Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Kurt Garloff <garloff@suse.de>, 2000.
 
@@ -38,8 +38,7 @@ struct thr_ctrl
 static void
 dump_mut (pthread_mutex_t * mut)
 {
-  int i;
-
+  size_t i;
   for (i = 0; i < sizeof (*mut); i++)
     printf (" %02x", *((unsigned char *) mut + i));
   printf ("\n");

linuxthreads/sysdeps/x86_64/tls.h

@@ -0,0 +1,119 @@
+/* Definitions for thread-local data handling.  linuxthreads/x86-64 version.
+   Copyright (C) 2002 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _TLS_H
+#define _TLS_H
+
+# include <pt-machine.h>
+
+#ifndef __ASSEMBLER__
+# include <stddef.h>
+
+/* Type for the dtv.  */
+typedef union dtv
+{
+  size_t counter;
+  void *pointer;
+} dtv_t;
+
+
+typedef struct
+{
+  void *tcb;		/* Pointer to the TCB.  Not necessary the
+			   thread descriptor used by libpthread.  */
+  dtv_t *dtv;
+  void *self;		/* Pointer to the thread descriptor.  */
+} tcbhead_t;
+#endif
+
+
+#ifdef HAVE_TLS_SUPPORT
+
+/* Signal that TLS support is available.  */
+# define USE_TLS	1
+
+# ifndef __ASSEMBLER__
+/* Get system call information.  */
+#  include <sysdep.h>
+
+/* Get the thread descriptor definition.  */
+#  include <linuxthreads/descr.h>
+
+/* This is the size of the initial TCB.  */
+#  define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
+
+/* Alignment requirements for the initial TCB.  */
+#  define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
+
+/* This is the size of the TCB.  */
+#  define TLS_TCB_SIZE sizeof (struct _pthread_descr_struct)
+
+/* Alignment requirements for the TCB.  */
+#  define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct)
+
+/* The TCB can have any size and the memory following the address the
+   thread pointer points to is unspecified.  Allocate the TCB there.  */
+#  define TLS_TCB_AT_TP	1
+
+
+/* Install the dtv pointer.  The pointer passed is to the element with
+   index -1 which contain the length.  */
+#  define INSTALL_DTV(descr, dtvp) \
+  ((tcbhead_t *) (descr))->dtv = (dtvp) + 1
+
+/* Install new dtv for current thread.  */
+#  define INSTALL_NEW_DTV(dtv) \
+  ({ struct _pthread_descr_struct *__descr;				      \
+     THREAD_SETMEM (__descr, p_header.data.dtvp, (dtv)); })
+
+/* Return dtv of given thread descriptor.  */
+#  define GET_DTV(descr) \
+  (((tcbhead_t *) (descr))->dtv)
+
+/* Code to initially initialize the thread pointer.  This might need
+   special attention since 'errno' is not yet available and if the
+   operation can cause a failure 'errno' must not be touched.  */
+# define TLS_INIT_TP(descr, secondcall)					      \
+  ({									      \
+    void *_descr = (descr);						      \
+    tcbhead_t *head = _descr;						      \
+    long int _result;							      \
+									      \
+    head->tcb = _descr;							      \
+    /* For now the thread descriptor is at the same address.  */	      \
+    head->self = _descr;						      \
+									      \
+    asm volatile ("syscall"						      \
+		  : "=a" (_result)					      \
+		  : "0" ((unsigned long int) __NR_arch_prctl),		      \
+		    "D" ((unsigned long int) ARCH_SET_FS),		      \
+		    "S" (_descr)					      \
+		  : "memory", "cc", "r11", "cx");			      \
+    _result ? -1 : 0;							      \
+  })
+
+/* Return the address of the dtv for the current thread.  */
+#  define THREAD_DTV() \
+  ({ struct _pthread_descr_struct *__descr;				      \
+     THREAD_GETMEM (__descr, p_header.data.dtvp); })
+
+# endif	/* HAVE_TLS_SUPPORT */
+#endif /* __ASSEMBLER__ */
+
+#endif	/* tls.h */