Update.

* sysdeps/unix/sysv/linux/ia64/sysconf.c: New file.
	* sysdeps/unix/sysv/linux/ia64/Dist: Add has_cpuclock.c.
	* sysdeps/unix/sysv/linux/ia64/clock_getcpuclockid.c: Move actual
	testing code to...
	* sysdeps/unix/sysv/linux/ia64/has_cpuclock.c: ...here.  New file.
	* sysdeps/unix/sysv/linux/i386/sysconf.c: Add dynamic check for
	_SC_CPUTIME and _SC_THREAD_CPUTIME.

ChangeLog

@@ -1,5 +1,13 @@
 2004-10-04  Ulrich Drepper  <drepper@redhat.com>
 
+	* sysdeps/unix/sysv/linux/ia64/sysconf.c: New file.
+	* sysdeps/unix/sysv/linux/ia64/Dist: Add has_cpuclock.c.
+	* sysdeps/unix/sysv/linux/ia64/clock_getcpuclockid.c: Move actual
+	testing code to...
+	* sysdeps/unix/sysv/linux/ia64/has_cpuclock.c: ...here.  New file.
+	* sysdeps/unix/sysv/linux/i386/sysconf.c: Add dynamic check for
+	_SC_CPUTIME and _SC_THREAD_CPUTIME.
+
 	* nscd/connections.c (start_threads): Use sysconf in case
 	_POSIX_CLOCK_SELECTION or _POSIX_MONOTONIC_CLOCK is not greater zero.
 

linuxthreads/ChangeLog

@@ -1,5 +1,9 @@
 2004-10-04  Ulrich Drepper  <drepper@redhat.com>
 
+	* sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Set _POSIX_CPUTIME
+	and _POSIX_THREAD_CPUTIME to zero.
+	* sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h: Likewise.
+
 	* sysdeps/unix/sysv/linux/bits/posix_opt.h: Define
 	_POSIX_THREAD_PROCESS_SHARED and _POSIX_CLOCK_SELECTION as -1.
 	* sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.

linuxthreads/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h

@@ -106,10 +106,10 @@
 #define _POSIX_SHARED_MEMORY_OBJECTS	200112L
 
 /* CPU-time clocks supported.  */
-#define _POSIX_CPUTIME	200112L
+#define _POSIX_CPUTIME	0
 
 /* We support the clock also in threads.  */
-#define _POSIX_THREAD_CPUTIME	200112L
+#define _POSIX_THREAD_CPUTIME	0
 
 /* GNU libc provides regular expression handling.  */
 #define _POSIX_REGEXP	1

linuxthreads/sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h

@@ -106,10 +106,10 @@
 #define _POSIX_SHARED_MEMORY_OBJECTS	200112L
 
 /* CPU-time clocks supported.  */
-#define _POSIX_CPUTIME	200112L
+#define _POSIX_CPUTIME	0
 
 /* We support the clock also in threads.  */
-#define _POSIX_THREAD_CPUTIME	200112L
+#define _POSIX_THREAD_CPUTIME	0
 
 /* GNU libc provides regular expression handling.  */
 #define _POSIX_REGEXP	1

nscd/connections.c

@@ -1459,16 +1459,15 @@ start_threads (void)
     && defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
   /* Determine whether the monotonous clock is available.  */
   struct timespec dummy;
-  if (
 # if _POSIX_MONOTONIC_CLOCK == 0
-      sysconf (_SC_MONOTONIC_CLOCK) > 0 &&
+  if (sysconf (_SC_MONOTONIC_CLOCK) > 0)
 # endif
 # if _POSIX_CLOCK_SELECTION == 0
-      sysconf (_SC_CLOCK_SELECTION) > 0 &&
+    if (sysconf (_SC_CLOCK_SELECTION) > 0)
 # endif
-      clock_getres (CLOCK_MONOTONIC, &dummy) == 0
+      if (clock_getres (CLOCK_MONOTONIC, &dummy) == 0
-      && pthread_condattr_setclock (&condattr, CLOCK_MONOTONIC) == 0)
+	  && pthread_condattr_setclock (&condattr, CLOCK_MONOTONIC) == 0)
-    timeout_clock = CLOCK_MONOTONIC;
+	timeout_clock = CLOCK_MONOTONIC;
 #endif
 
   pthread_cond_init (&readylist_cond, &condattr);

sysdeps/unix/sysv/linux/i386/sysconf.c

@@ -319,16 +319,9 @@ handle_amd (int name)
 }
 
 
-/* Get the value of the system variable NAME.  */
+static int
-long int
+i386_i486_test (void)
-__sysconf (int name)
 {
-  /* We only handle the cache information here (for now).  */
-  if (name < _SC_LEVEL1_ICACHE_SIZE || name > _SC_LEVEL4_CACHE_LINESIZE)
-    return linux_sysconf (name);
-
-  /* Recognize i386 and compatible.  These don't have any cache on
-     board.  */
   int eflags;
   int ac;
   asm volatile ("pushfl;\n\t"
@@ -343,6 +336,35 @@ __sysconf (int name)
 		"pushl %0;\n\t"
 		"popfl"
 		: "=r" (eflags), "=r" (ac));
+
+  return ac;
+}
+
+
+/* Get the value of the system variable NAME.  */
+long int
+__sysconf (int name)
+{
+  if (name == _SC_CPUTIME || name == _SC_THREAD_CPUTIME)
+    {
+      /* Check dynamically.  */
+      int ac = i386_i486_test ();
+
+      /* Only i386 and i486 have no TSC.  */
+      // XXX We can add  here test for machines which cannot support a
+      // XXX usabel TSC.
+      return ac == 0 || (ac & (1 << 21)) == 0 ? -1 : 200112L;
+    }
+
+  /* All the remainder, except the cache information, is handled in
+     the generic code.  */
+  if (name < _SC_LEVEL1_ICACHE_SIZE || name > _SC_LEVEL4_CACHE_LINESIZE)
+    return linux_sysconf (name);
+
+  /* Recognize i386 and compatible.  These don't have any cache on
+     board.  */
+  int ac = i386_i486_test ();
+
   if (ac == 0)
     /* This is an i386.  */
     // XXX Is this true for all brands?

sysdeps/unix/sysv/linux/ia64/Dist

@@ -2,6 +2,7 @@ clone.S
 clone2.S
 dl-brk.S
 dl-static.c
+has_cpuclock.c
 ioperm.c
 ldd-rewrite.sed
 __start_context.S

sysdeps/unix/sysv/linux/ia64/clock_getcpuclockid.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001, 2003, 2004 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
@@ -24,6 +24,9 @@
 #include <fcntl.h>
 
 
+#include "has_cpuclock.c"
+
+
 int
 clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
 {
@@ -31,30 +34,7 @@ clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
   if (pid != 0 && pid != getpid ())
     return EPERM;
 
-  static int itc_usable;
+  if (has_cpuclock () > 0)
-  int retval = ENOENT;
-
-  if (__builtin_expect (itc_usable == 0, 0))
-    {
-      int newval = 1;
-      int fd = open ("/proc/sal/itc_drift", O_RDONLY);
-      if (__builtin_expect (fd != -1, 1))
-	{
-	  char buf[16];
-	  /* We expect the file to contain a single digit followed by
-	     a newline.  If the format changes we better not rely on
-	     the file content.  */
-	  if (read (fd, buf, sizeof buf) != 2 || buf[0] != '0'
-	      || buf[1] != '\n')
-	    newval = -1;
-
-	  close (fd);
-	}
-
-      itc_usable = newval;
-    }
-
-  if (itc_usable > 0)
     {
       /* Store the number.  */
       *clock_id = CLOCK_PROCESS_CPUTIME_ID;

sysdeps/unix/sysv/linux/ia64/has_cpuclock.c

@@ -0,0 +1,52 @@
+/* Copyright (C) 2000, 2001, 2003, 2004 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.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+
+static int itc_usable;
+
+static int
+has_cpuclock (void)
+{
+  if (__builtin_expect (itc_usable == 0, 0))
+    {
+      int newval = 1;
+      int fd = open ("/proc/sal/itc_drift", O_RDONLY);
+      if (__builtin_expect (fd != -1, 1))
+	{
+	  char buf[16];
+	  /* We expect the file to contain a single digit followed by
+	     a newline.  If the format changes we better not rely on
+	     the file content.  */
+	  if (read (fd, buf, sizeof buf) != 2 || buf[0] != '0'
+	      || buf[1] != '\n')
+	    newval = -1;
+
+	  close (fd);
+	}
+
+      itc_usable = newval;
+    }
+
+  return itc_usable;
+}

sysdeps/unix/sysv/linux/ia64/sysconf.c

@@ -0,0 +1,45 @@
+/* Get file-specific information about a file.  Linux version.
+   Copyright (C) 2003, 2004 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.  */
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+
+#include "has_cpuclock.c"
+
+static long int linux_sysconf (int name);
+
+
+/* Get the value of the system variable NAME.  */
+long int
+__sysconf (int name)
+{
+  if (name == _SC_CPUTIME || name == SC_THREAD_CPUTIME)
+    return has_cpuclock () ? 200112L : -1;
+
+  /* Everything else is handled by the more general code.  */
+  return linux_sysconf (name);
+}
+
+/* Now the generic Linux version.  */
+#undef __sysconf
+#define __sysconf static linux_sysconf
+#include "../sysconf.c"