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authorUlrich Drepper <drepper@redhat.com>2001-04-23 19:01:10 +0000
committerUlrich Drepper <drepper@redhat.com>2001-04-23 19:01:10 +0000
commit3b5c1b57d3a2de7955eed21f01cb80e663473491 (patch)
tree3adc1685dfb18a5b08067aaa4b4143f31c2d84e7 /sysdeps/posix
parentbc183edc4e9fb3bd3bf68a99592e5b9e6a850d79 (diff)
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Update.
	* sysdeps/unix/i386/i586/clock_getres.c: Removed.
	* sysdeps/unix/i386/i586/clock_gettime.c: Removed.
	* sysdeps/unix/i386/i586/clock_nanosleep.c: Removed.
	* sysdeps/unix/i386/i586/clock_settime.c: Removed.
	* sysdeps/unix/i386/i586/cpuclock-init.h: Removed.
	* sysdeps/generic/cpuclock-init.h: Removed.
	* sysdeps/unix/i386/i686/Implies: Removed.
	* sysdeps/unix/i386/i686/tempname.c: Removed.
	* sysdeps/i386/i686/Versions: New file.
	* sysdeps/unix/i386/i586/Versions: Removed.

	* sysdeps/posix/clock_getres.c: If HP_TIMING_AVAIL is nonzero handle
	CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID.
	* sysdeps/unix/clock_gettime.c: Likewise.
	* sysdeps/unix/clock_nanosleep.c: Likewise.
	* sysdeps/unix/clock_settime.c: Likewise.
	* sysdeps/posix/tempname.c: Is HP_TIMING_AVAIL is nonzero define
	RANDOM_BITS use CPU clock.

	* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/bits/time.h: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9b/bits/time.h: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/time.h: New file.
	* sysdeps/sparc/Versions: New file.

	* elf/dl-support.c: Don't use cpuclock-init.h definitions, use
	hp-timing.h definitions.
	* sysdeps/generic/dl-sysdep.c: Likewise.

	* include/libc-internal.h: Include hp-timing.h.  Use hp_timing_t in
	__get_clockfreq prototype.

	* sysdeps/unix/sysv/linux/i386/get_clockfreq.c (__get_clockfreq):
	Use hp_timing_t type.

	* sysdeps/unix/sysv/linux/ia64/get_clockfreq.c: New file.
Diffstat (limited to 'sysdeps/posix')
-rw-r--r--sysdeps/posix/clock_getres.c39
-rw-r--r--sysdeps/posix/tempname.c19
2 files changed, 55 insertions, 3 deletions
diff --git a/sysdeps/posix/clock_getres.c b/sysdeps/posix/clock_getres.c
index 0d8e29b5a8..cf92a35abf 100644
--- a/sysdeps/posix/clock_getres.c
+++ b/sysdeps/posix/clock_getres.c
@@ -17,14 +17,19 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <errno.h>
+#include <stdint.h>
 #include <time.h>
 #include <unistd.h>
+#include <sys/param.h>
+#include <libc-internal.h>
 
 
-#ifndef EXTRA_CLOCK_CASES
-# define EXTRA_CLOCK_CASES
+#if HP_TIMING_AVAIL
+/* Clock frequency of the processor.  */
+static long int nsec;
 #endif
 
+
 /* Get resolution of clock.  */
 int
 clock_getres (clockid_t clock_id, struct timespec *res)
@@ -50,7 +55,35 @@ clock_getres (clockid_t clock_id, struct timespec *res)
       }
       break;
 
-      EXTRA_CLOCK_CASES
+#if HP_TIMING_AVAIL
+    case CLOCK_PROCESS_CPUTIME_ID:
+    case CLOCK_THREAD_CPUTIME_ID:
+      {
+	if (__builtin_expect (nsec == 0, 0))
+	  {
+	    hp_timing_t freq;
+
+	    /* This can only happen if we haven't initialized the `freq'
+	       variable yet.  Do this now. We don't have to protect this
+	       code against multiple execution since all of them should
+	       lead to the same result.  */
+	    freq = __get_clockfreq ();
+	    if (__builtin_expect (freq == 0, 0))
+	      /* Something went wrong.  */
+	      break;
+
+	    nsec = MAX (UINT64_C (1000000000) / freq, 1);
+	  }
+
+	/* File in the values.  The seconds are always zero (unless we
+	   have a 1Hz machine).  */
+	res->tv_sec = 0;
+	res->tv_nsec = nsec;
+
+	retval = 0;
+      }
+      break;
+#endif
 
     default:
       __set_errno (EINVAL);
diff --git a/sysdeps/posix/tempname.c b/sysdeps/posix/tempname.c
index 088da95758..a7c125f346 100644
--- a/sysdeps/posix/tempname.c
+++ b/sysdeps/posix/tempname.c
@@ -107,6 +107,25 @@
 # define __secure_getenv getenv
 #endif
 
+#ifdef _LIBC
+# include <hp-timing.h>
+# if HP_TIMING_AVAIL
+#  define RANDOM_BITS(Var) \
+  if (__builtin_expect (value == UINT64_C (0), 0))			      \
+    {									      \
+      /* If this is the first time this function is used initialize	      \
+	 the variable we accumulate the value in to some somewhat	      \
+	 random value.  If we'd not do this programs at startup time	      \
+	 might have a reduced set of possible names, at least on slow	      \
+	 machines.  */							      \
+      struct timeval tv;						      \
+      __gettimeofday (&tv, NULL);					      \
+      value = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec;		      \
+    }									      \
+  HP_TIMING_NOW (Var)
+# endif
+#endif
+
 /* Use the widest available unsigned type if uint64_t is not
    available.  The algorithm below extracts a number less than 62**6
    (approximately 2**35.725) from uint64_t, so ancient hosts where