Update.

	* include/time.h: Define CLOCK_IDFIELD_SIZE.
	* sysdeps/posix/clock_getres.c: Recognize thread CPU clock IDs.
	* sysdeps/unix/clock_gettime.c: Likewise.
	* sysdeps/unix/clock_settime.c: Likewise.
	* sysdeps/unix/clock_nanosleep.c (CPUCLOCK_P): Adjust for new
	clock id for thread CPU clocks.

1 files changed, 12 insertions, 5 deletions

diff --git a/nptl/sysdeps/pthread/pthread_getcpuclockid.c b/nptl/sysdeps/pthread/pthread_getcpuclockid.c
index 6386dc4dc0..8506f94eb4 100644
--- a/nptl/sysdeps/pthread/pthread_getcpuclockid.c
+++ b/nptl/sysdeps/pthread/pthread_getcpuclockid.c
@@ -34,13 +34,20 @@ pthread_getcpuclockid (threadid, clockid)
     /* Not a valid thread handle.  */
     return ESRCH;
 
-  /* We don't allow any process ID but our own.  */
-  if (pd != THREAD_SELF)
-    return EPERM;
-
 #ifdef CLOCK_THREAD_CPUTIME_ID
+  /* We need to store the thread ID in the CLOCKID variable together
+     with a number identifying the clock.  We reserve the low 3 bits
+     for the clock ID and the rest for the thread ID.  This is
+     problematic if the thread ID is too large.  But 29 bits should be
+     fine.
+
+     If some day more clock IDs are needed the ID part can be
+     enlarged.  The IDs are entirely internal.  */
+  if (pd->tid >= 1 << (8 * sizeof (*clockid) - CLOCK_IDFIELD_SIZE))
+    return ERANGE;
+
   /* Store the number.  */
-  *clockid = CLOCK_THREAD_CPUTIME_ID;
+  *clockid = CLOCK_THREAD_CPUTIME_ID | (pd->tid << CLOCK_IDFIELD_SIZE);
 
   return 0;
 #else