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authorJoseph Myers <joseph@codesourcery.com>2012-09-01 21:32:04 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-09-01 21:32:04 +0000
commit26889eacc24cd9f0cb37c5a67beac1a0ba709adf (patch)
tree04fbc7fb5e7200f1075a0f57bf073713a937b518 /sysdeps/unix/sysv/linux/clock_getres.c
parent033d54a2d43a92cdb1794a4dfece4d465cf36f6b (diff)
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Remove __ASSUME_POSIX_CPU_TIMERS.
Diffstat (limited to 'sysdeps/unix/sysv/linux/clock_getres.c')
-rw-r--r--sysdeps/unix/sysv/linux/clock_getres.c86
1 files changed, 4 insertions, 82 deletions
diff --git a/sysdeps/unix/sysv/linux/clock_getres.c b/sysdeps/unix/sysv/linux/clock_getres.c
index 2bada33b40..1e87dd9a8d 100644
--- a/sysdeps/unix/sysv/linux/clock_getres.c
+++ b/sysdeps/unix/sysv/linux/clock_getres.c
@@ -46,89 +46,11 @@
   case CLOCK_MONOTONIC_COARSE:						      \
     SYSCALL_GETRES
 
-#ifdef __NR_clock_getres
 /* We handled the REALTIME clock here.  */
-# define HANDLED_REALTIME	1
-# define HANDLED_CPUTIME	1
+#define HANDLED_REALTIME	1
+#define HANDLED_CPUTIME		1
 
-# if __ASSUME_POSIX_CPU_TIMERS > 0
-
-#  define SYSDEP_GETRES_CPU SYSCALL_GETRES
-#  define SYSDEP_GETRES_CPUTIME	/* Default catches them too.  */
-
-# else
-
-extern int __libc_missing_posix_cpu_timers attribute_hidden;
-
-static int
-maybe_syscall_getres_cpu (clockid_t clock_id, struct timespec *res)
-{
-  int e = EINVAL;
-
-  if (!__libc_missing_posix_cpu_timers)
-    {
-      INTERNAL_SYSCALL_DECL (err);
-      int r = INTERNAL_VSYSCALL (clock_getres, err, 2, clock_id, res);
-      if (!INTERNAL_SYSCALL_ERROR_P (r, err))
-	return 0;
-
-      e = INTERNAL_SYSCALL_ERRNO (r, err);
-      if (e == EINVAL)
-	{
-	  /* Check whether the kernel supports CPU clocks at all.
-	     If not, record it for the future.  */
-	  r = INTERNAL_VSYSCALL (clock_getres, err, 2,
-				 MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
-				 NULL);
-	  if (INTERNAL_SYSCALL_ERROR_P (r, err))
-	    __libc_missing_posix_cpu_timers = 1;
-	}
-    }
-
-  return e;
-}
-
-#  define SYSDEP_GETRES_CPU						      \
-  retval = maybe_syscall_getres_cpu (clock_id, res);			      \
-  if (retval == 0)							      \
-    break;								      \
-  if (retval != EINVAL || !__libc_missing_posix_cpu_timers)		      \
-    {									      \
-      __set_errno (retval);						      \
-      retval = -1;							      \
-      break;								      \
-    }									      \
-  retval = -1 /* Otherwise continue on to the HP_TIMING version.  */;
-
-static inline int
-maybe_syscall_getres_cputime (clockid_t clock_id, struct timespec *res)
-{
-  return maybe_syscall_getres_cpu
-    (clock_id == CLOCK_THREAD_CPUTIME_ID
-     ? MAKE_THREAD_CPUCLOCK (0, CPUCLOCK_SCHED)
-     : MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
-     res);
-}
-
-#  define SYSDEP_GETRES_CPUTIME						      \
-    case CLOCK_PROCESS_CPUTIME_ID:					      \
-    case CLOCK_THREAD_CPUTIME_ID:					      \
-      retval = maybe_syscall_getres_cputime (clock_id, res);		      \
-      if (retval == 0)							      \
-	break;								      \
-      if (retval != EINVAL || !__libc_missing_posix_cpu_timers)		      \
-	{								      \
-	  __set_errno (retval);						      \
-	  retval = -1;							      \
-	  break;							      \
-	}								      \
-      retval = hp_timing_getres (res);					      \
-      break;
-#  if !HP_TIMING_AVAIL
-#   define hp_timing_getres(res) (__set_errno (EINVAL), -1)
-#  endif
-
-# endif
-#endif
+#define SYSDEP_GETRES_CPU SYSCALL_GETRES
+#define SYSDEP_GETRES_CPUTIME	/* Default catches them too.  */
 
 #include <sysdeps/posix/clock_getres.c>