diff --git a/rt/Makefile b/rt/Makefile
index bd9d31b985..d2ff0221c7 100644
--- a/rt/Makefile
+++ b/rt/Makefile
@@ -30,8 +30,6 @@ routines = \
 
 librt-routines = \
   librt-compat \
-  timer_create \
-  timer_delete \
   timer_getoverr \
   timer_gettime \
   timer_settime \
@@ -63,6 +61,8 @@ $(librt-routines-var) += \
   mq_timedreceive \
   mq_timedsend \
   mq_unlink \
+  timer_create \
+  timer_delete \
 
 tests := tst-shm tst-timer tst-timer2 \
 	 tst-aio tst-aio64 tst-aio2 tst-aio3 tst-aio4 tst-aio5 tst-aio6 \
diff --git a/rt/Versions b/rt/Versions
index 9a09062a2a..fca804148c 100644
--- a/rt/Versions
+++ b/rt/Versions
@@ -21,6 +21,10 @@ libc {
 %endif
   }
   GLIBC_2.2 {
+%if PTHREAD_IN_LIBC
+    timer_create;
+    timer_delete;
+%endif
     shm_open;
     shm_unlink;
   }
@@ -52,23 +56,23 @@ libc {
   GLIBC_2.34 {
 %if PTHREAD_IN_LIBC
     __mq_open_2;
-    aio_cancel;
     aio_cancel64;
-    aio_init;
-    aio_error;
+    aio_cancel;
     aio_error64;
-    aio_fsync;
+    aio_error;
     aio_fsync64;
-    aio_read;
+    aio_fsync;
+    aio_init;
     aio_read64;
-    aio_return;
+    aio_read;
     aio_return64;
-    aio_suspend;
+    aio_return;
     aio_suspend64;
-    aio_write;
+    aio_suspend;
     aio_write64;
-    lio_listio;
+    aio_write;
     lio_listio64;
+    lio_listio;
     mq_close;
     mq_getattr;
     mq_notify;
@@ -79,6 +83,8 @@ libc {
     mq_timedreceive;
     mq_timedsend;
     mq_unlink;
+    timer_create;
+    timer_delete;
 %endif
     shm_open;
     shm_unlink;
@@ -122,8 +128,10 @@ librt {
 %endif
   }
   GLIBC_2.2 {
+%if !PTHREAD_IN_LIBC
     timer_create;
     timer_delete;
+%endif
     timer_getoverrun;
     timer_gettime;
     timer_settime;
diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions
index 47d4357b9f..0db1b9c31c 100644
--- a/sysdeps/unix/sysv/linux/Versions
+++ b/sysdeps/unix/sysv/linux/Versions
@@ -121,6 +121,10 @@ libc {
     posix_fallocate64;
     sys_sigabbrev;
     sys_siglist;
+
+    # Changed timer_t.  Only used by some 64-bit targets.
+    timer_create;
+    timer_delete;
   }
   GLIBC_2.3.4 {
     sched_getaffinity; sched_setaffinity;
@@ -284,6 +288,7 @@ libc {
     __sigtimedwait;
     __timer_active_sigev_thread;
     __timer_active_sigev_thread_lock;
+    __timer_compat_list;
     __timer_helper_once;
     __timer_helper_tid;
     __timer_start_helper_thread;
diff --git a/sysdeps/unix/sysv/linux/aarch64/libc.abilist b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
index 141d5cb843..17779baac1 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
@@ -2006,6 +2006,8 @@ GLIBC_2.17 tfind F
 GLIBC_2.17 time F
 GLIBC_2.17 timegm F
 GLIBC_2.17 timelocal F
+GLIBC_2.17 timer_create F
+GLIBC_2.17 timer_delete F
 GLIBC_2.17 timerfd_create F
 GLIBC_2.17 timerfd_gettime F
 GLIBC_2.17 timerfd_settime F
@@ -2529,6 +2531,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/aarch64/librt.abilist b/sysdeps/unix/sysv/linux/aarch64/librt.abilist
index 54bb3e5c7c..34768d1472 100644
--- a/sysdeps/unix/sysv/linux/aarch64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.17 timer_create F
-GLIBC_2.17 timer_delete F
 GLIBC_2.17 timer_getoverrun F
 GLIBC_2.17 timer_gettime F
 GLIBC_2.17 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/alpha/Versions b/sysdeps/unix/sysv/linux/alpha/Versions
index db6116a890..d4bd056f64 100644
--- a/sysdeps/unix/sysv/linux/alpha/Versions
+++ b/sysdeps/unix/sysv/linux/alpha/Versions
@@ -104,7 +104,7 @@ librt {
   }
   GLIBC_2.3.3 {
     # Changed timer_t.
-    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_getoverrun; timer_gettime;
     timer_settime;
   }
 }
diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist
index 5441b6a3f3..985a1deca9 100644
--- a/sysdeps/unix/sysv/linux/alpha/libc.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist
@@ -2093,6 +2093,8 @@ GLIBC_2.2 svc_max_pollfd D 0x4
 GLIBC_2.2 svc_pollfd D 0x8
 GLIBC_2.2 swprintf F
 GLIBC_2.2 swscanf F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 ungetwc F
 GLIBC_2.2 vfwprintf F
 GLIBC_2.2 vfwscanf F
@@ -2353,6 +2355,8 @@ GLIBC_2.3.3 strtoll_l F
 GLIBC_2.3.3 strtoull_l F
 GLIBC_2.3.3 sys_sigabbrev D 0x208
 GLIBC_2.3.3 sys_siglist D 0x208
+GLIBC_2.3.3 timer_create F
+GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.4 _OtsAddX F
 GLIBC_2.3.4 _OtsConvertFloatTX F
 GLIBC_2.3.4 _OtsConvertFloatXT F
@@ -2623,6 +2627,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/alpha/librt.abilist b/sysdeps/unix/sysv/linux/alpha/librt.abilist
index 8592c90bdf..3b744cf5a1 100644
--- a/sysdeps/unix/sysv/linux/alpha/librt.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/librt.abilist
@@ -1,12 +1,8 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
 GLIBC_2.3 __librt_version_placeholder F
-GLIBC_2.3.3 timer_create F
-GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.3 timer_getoverrun F
 GLIBC_2.3.3 timer_gettime F
 GLIBC_2.3.3 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/alpha/timer_create.c b/sysdeps/unix/sysv/linux/alpha/timer_create.c
deleted file mode 100644
index d307135003..0000000000
--- a/sysdeps/unix/sysv/linux/alpha/timer_create.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_create.c>
diff --git a/sysdeps/unix/sysv/linux/alpha/timer_delete.c b/sysdeps/unix/sysv/linux/alpha/timer_delete.c
deleted file mode 100644
index 2dd94f5c7a..0000000000
--- a/sysdeps/unix/sysv/linux/alpha/timer_delete.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_delete.c>
diff --git a/sysdeps/unix/sysv/linux/arc/libc.abilist b/sysdeps/unix/sysv/linux/arc/libc.abilist
index 37fd195f70..22fa42dfc3 100644
--- a/sysdeps/unix/sysv/linux/arc/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arc/libc.abilist
@@ -1940,6 +1940,8 @@ GLIBC_2.32 thrd_yield F
 GLIBC_2.32 time F
 GLIBC_2.32 timegm F
 GLIBC_2.32 timelocal F
+GLIBC_2.32 timer_create F
+GLIBC_2.32 timer_delete F
 GLIBC_2.32 timerfd_create F
 GLIBC_2.32 timerfd_gettime F
 GLIBC_2.32 timerfd_settime F
@@ -2288,6 +2290,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/arc/librt.abilist b/sysdeps/unix/sysv/linux/arc/librt.abilist
index 0454fb41fd..7bc7c57bf0 100644
--- a/sysdeps/unix/sysv/linux/arc/librt.abilist
+++ b/sysdeps/unix/sysv/linux/arc/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.32 timer_create F
-GLIBC_2.32 timer_delete F
 GLIBC_2.32 timer_getoverrun F
 GLIBC_2.32 timer_gettime F
 GLIBC_2.32 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/arm/be/libc.abilist b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
index 42ba748c07..c8ff2a0b74 100644
--- a/sysdeps/unix/sysv/linux/arm/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
@@ -434,6 +434,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
@@ -2350,6 +2352,8 @@ GLIBC_2.4 tfind F
 GLIBC_2.4 time F
 GLIBC_2.4 timegm F
 GLIBC_2.4 timelocal F
+GLIBC_2.4 timer_create F
+GLIBC_2.4 timer_delete F
 GLIBC_2.4 times F
 GLIBC_2.4 timezone D 0x4
 GLIBC_2.4 tmpfile F
diff --git a/sysdeps/unix/sysv/linux/arm/be/librt.abilist b/sysdeps/unix/sysv/linux/arm/be/librt.abilist
index 8682174e36..0887259367 100644
--- a/sysdeps/unix/sysv/linux/arm/be/librt.abilist
+++ b/sysdeps/unix/sysv/linux/arm/be/librt.abilist
@@ -1,7 +1,5 @@
 GLIBC_2.34 __timer_gettime64 F
 GLIBC_2.34 __timer_settime64 F
-GLIBC_2.4 timer_create F
-GLIBC_2.4 timer_delete F
 GLIBC_2.4 timer_getoverrun F
 GLIBC_2.4 timer_gettime F
 GLIBC_2.4 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/arm/le/libc.abilist b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
index 92f06718bd..b237b78f85 100644
--- a/sysdeps/unix/sysv/linux/arm/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
@@ -431,6 +431,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
@@ -2347,6 +2349,8 @@ GLIBC_2.4 tfind F
 GLIBC_2.4 time F
 GLIBC_2.4 timegm F
 GLIBC_2.4 timelocal F
+GLIBC_2.4 timer_create F
+GLIBC_2.4 timer_delete F
 GLIBC_2.4 times F
 GLIBC_2.4 timezone D 0x4
 GLIBC_2.4 tmpfile F
diff --git a/sysdeps/unix/sysv/linux/arm/le/librt.abilist b/sysdeps/unix/sysv/linux/arm/le/librt.abilist
index 8682174e36..0887259367 100644
--- a/sysdeps/unix/sysv/linux/arm/le/librt.abilist
+++ b/sysdeps/unix/sysv/linux/arm/le/librt.abilist
@@ -1,7 +1,5 @@
 GLIBC_2.34 __timer_gettime64 F
 GLIBC_2.34 __timer_settime64 F
-GLIBC_2.4 timer_create F
-GLIBC_2.4 timer_delete F
 GLIBC_2.4 timer_getoverrun F
 GLIBC_2.4 timer_gettime F
 GLIBC_2.4 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist
index 7ee4e79de2..c1b6927cea 100644
--- a/sysdeps/unix/sysv/linux/csky/libc.abilist
+++ b/sysdeps/unix/sysv/linux/csky/libc.abilist
@@ -2030,6 +2030,8 @@ GLIBC_2.29 thrd_yield F
 GLIBC_2.29 time F
 GLIBC_2.29 timegm F
 GLIBC_2.29 timelocal F
+GLIBC_2.29 timer_create F
+GLIBC_2.29 timer_delete F
 GLIBC_2.29 timerfd_create F
 GLIBC_2.29 timerfd_gettime F
 GLIBC_2.29 timerfd_settime F
@@ -2551,6 +2553,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/csky/librt.abilist b/sysdeps/unix/sysv/linux/csky/librt.abilist
index c92668b743..3d7c839b9b 100644
--- a/sysdeps/unix/sysv/linux/csky/librt.abilist
+++ b/sysdeps/unix/sysv/linux/csky/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.29 timer_create F
-GLIBC_2.29 timer_delete F
 GLIBC_2.29 timer_getoverrun F
 GLIBC_2.29 timer_gettime F
 GLIBC_2.29 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist
index 7610cc4343..c5021c8109 100644
--- a/sysdeps/unix/sysv/linux/hppa/libc.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist
@@ -1744,6 +1744,8 @@ GLIBC_2.2 tfind F
 GLIBC_2.2 time F
 GLIBC_2.2 timegm F
 GLIBC_2.2 timelocal F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 times F
 GLIBC_2.2 timezone D 0x4
 GLIBC_2.2 tmpfile F
@@ -2504,6 +2506,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/hppa/librt.abilist b/sysdeps/unix/sysv/linux/hppa/librt.abilist
index cfe4455a75..1268c7fc38 100644
--- a/sysdeps/unix/sysv/linux/hppa/librt.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/librt.abilist
@@ -1,6 +1,4 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist
index 54a6d61b0b..8055ea6984 100644
--- a/sysdeps/unix/sysv/linux/i386/libc.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libc.abilist
@@ -2106,6 +2106,8 @@ GLIBC_2.2 svc_max_pollfd D 0x4
 GLIBC_2.2 svc_pollfd D 0x4
 GLIBC_2.2 swprintf F
 GLIBC_2.2 swscanf F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 ungetwc F
 GLIBC_2.2 versionsort64 F
 GLIBC_2.2 vfwprintf F
@@ -2688,6 +2690,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/i386/librt.abilist b/sysdeps/unix/sysv/linux/i386/librt.abilist
index cfe4455a75..1268c7fc38 100644
--- a/sysdeps/unix/sysv/linux/i386/librt.abilist
+++ b/sysdeps/unix/sysv/linux/i386/librt.abilist
@@ -1,6 +1,4 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/ia64/Versions b/sysdeps/unix/sysv/linux/ia64/Versions
index f438b12587..29b0d98cc6 100644
--- a/sysdeps/unix/sysv/linux/ia64/Versions
+++ b/sysdeps/unix/sysv/linux/ia64/Versions
@@ -30,7 +30,7 @@ libc {
 librt {
   GLIBC_2.3.3 {
     # Changed timer_t.
-    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_getoverrun; timer_gettime;
     timer_settime;
   }
 }
diff --git a/sysdeps/unix/sysv/linux/ia64/libc.abilist b/sysdeps/unix/sysv/linux/ia64/libc.abilist
index cad4a129d1..4cf1da5b62 100644
--- a/sysdeps/unix/sysv/linux/ia64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libc.abilist
@@ -1765,6 +1765,8 @@ GLIBC_2.2 tfind F
 GLIBC_2.2 time F
 GLIBC_2.2 timegm F
 GLIBC_2.2 timelocal F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 times F
 GLIBC_2.2 timezone D 0x8
 GLIBC_2.2 tmpfile F
@@ -2218,6 +2220,8 @@ GLIBC_2.3.3 strtoll_l F
 GLIBC_2.3.3 strtoull_l F
 GLIBC_2.3.3 sys_sigabbrev D 0x208
 GLIBC_2.3.3 sys_siglist D 0x208
+GLIBC_2.3.3 timer_create F
+GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.4 __chk_fail F
 GLIBC_2.3.4 __fprintf_chk F
 GLIBC_2.3.4 __gets_chk F
@@ -2461,6 +2465,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/ia64/librt.abilist b/sysdeps/unix/sysv/linux/ia64/librt.abilist
index 842df91625..74a4971070 100644
--- a/sysdeps/unix/sysv/linux/ia64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/librt.abilist
@@ -1,11 +1,7 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
-GLIBC_2.3.3 timer_create F
-GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.3 timer_getoverrun F
 GLIBC_2.3.3 timer_gettime F
 GLIBC_2.3.3 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/ia64/timer_create.c b/sysdeps/unix/sysv/linux/ia64/timer_create.c
deleted file mode 100644
index d307135003..0000000000
--- a/sysdeps/unix/sysv/linux/ia64/timer_create.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_create.c>
diff --git a/sysdeps/unix/sysv/linux/ia64/timer_delete.c b/sysdeps/unix/sysv/linux/ia64/timer_delete.c
deleted file mode 100644
index 2dd94f5c7a..0000000000
--- a/sysdeps/unix/sysv/linux/ia64/timer_delete.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_delete.c>
diff --git a/sysdeps/unix/sysv/linux/kernel-posix-timers.h b/sysdeps/unix/sysv/linux/kernel-posix-timers.h
index 874b809eba..99a2937458 100644
--- a/sysdeps/unix/sysv/linux/kernel-posix-timers.h
+++ b/sysdeps/unix/sysv/linux/kernel-posix-timers.h
@@ -48,6 +48,11 @@ libc_hidden_proto (__timer_active_sigev_thread)
 extern pthread_mutex_t __timer_active_sigev_thread_lock;
 libc_hidden_proto (__timer_active_sigev_thread_lock)
 
+extern __typeof (timer_create) __timer_create;
+libc_hidden_proto (__timer_create)
+extern __typeof (timer_delete) __timer_delete;
+libc_hidden_proto (__timer_delete)
+
 /* Type of timers in the kernel.  */
 typedef int kernel_timer_t;
 
@@ -107,3 +112,8 @@ timerid_to_kernel_timer (timer_t timerid)
 /* New targets use int instead of timer_t.  The difference only
    matters on 64-bit targets.  */
 #define TIMER_T_WAS_INT_COMPAT 0
+
+/* Used if an override sets TIMER_T_WAS_INT_COMPAT to 1.  */
+#define OLD_TIMER_MAX 256
+extern timer_t __timer_compat_list[OLD_TIMER_MAX];
+libc_hidden_proto (__timer_compat_list)
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
index ff831374fa..e7c0a81f37 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
@@ -435,6 +435,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
@@ -2330,6 +2332,8 @@ GLIBC_2.4 tfind F
 GLIBC_2.4 time F
 GLIBC_2.4 timegm F
 GLIBC_2.4 timelocal F
+GLIBC_2.4 timer_create F
+GLIBC_2.4 timer_delete F
 GLIBC_2.4 times F
 GLIBC_2.4 timezone D 0x4
 GLIBC_2.4 tmpfile F
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/librt.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/librt.abilist
index 8682174e36..0887259367 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/librt.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/librt.abilist
@@ -1,7 +1,5 @@
 GLIBC_2.34 __timer_gettime64 F
 GLIBC_2.34 __timer_settime64 F
-GLIBC_2.4 timer_create F
-GLIBC_2.4 timer_delete F
 GLIBC_2.4 timer_getoverrun F
 GLIBC_2.4 timer_gettime F
 GLIBC_2.4 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
index b2c98b40e9..b82f6366ee 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
@@ -2062,6 +2062,8 @@ GLIBC_2.2 svc_max_pollfd D 0x4
 GLIBC_2.2 svc_pollfd D 0x4
 GLIBC_2.2 swprintf F
 GLIBC_2.2 swscanf F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 ungetwc F
 GLIBC_2.2 versionsort64 F
 GLIBC_2.2 vfwprintf F
@@ -2631,6 +2633,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/librt.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/librt.abilist
index cfe4455a75..1268c7fc38 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/librt.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/librt.abilist
@@ -1,6 +1,4 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
index fa945ee6fc..3f9dfa7664 100644
--- a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
@@ -2010,6 +2010,8 @@ GLIBC_2.18 tfind F
 GLIBC_2.18 time F
 GLIBC_2.18 timegm F
 GLIBC_2.18 timelocal F
+GLIBC_2.18 timer_create F
+GLIBC_2.18 timer_delete F
 GLIBC_2.18 timerfd_create F
 GLIBC_2.18 timerfd_gettime F
 GLIBC_2.18 timerfd_settime F
@@ -2602,6 +2604,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/microblaze/be/librt.abilist b/sysdeps/unix/sysv/linux/microblaze/be/librt.abilist
index fcfed800bf..2efee3a326 100644
--- a/sysdeps/unix/sysv/linux/microblaze/be/librt.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/be/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.18 timer_create F
-GLIBC_2.18 timer_delete F
 GLIBC_2.18 timer_getoverrun F
 GLIBC_2.18 timer_gettime F
 GLIBC_2.18 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
index c65815be74..bb2fd6251f 100644
--- a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
@@ -2010,6 +2010,8 @@ GLIBC_2.18 tfind F
 GLIBC_2.18 time F
 GLIBC_2.18 timegm F
 GLIBC_2.18 timelocal F
+GLIBC_2.18 timer_create F
+GLIBC_2.18 timer_delete F
 GLIBC_2.18 timerfd_create F
 GLIBC_2.18 timerfd_gettime F
 GLIBC_2.18 timerfd_settime F
@@ -2599,6 +2601,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/microblaze/le/librt.abilist b/sysdeps/unix/sysv/linux/microblaze/le/librt.abilist
index fcfed800bf..2efee3a326 100644
--- a/sysdeps/unix/sysv/linux/microblaze/le/librt.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/le/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.18 timer_create F
-GLIBC_2.18 timer_delete F
 GLIBC_2.18 timer_getoverrun F
 GLIBC_2.18 timer_gettime F
 GLIBC_2.18 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
index 9c0174bf65..938142fb4a 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
@@ -1993,6 +1993,8 @@ GLIBC_2.2 sys_siglist D 0x100
 GLIBC_2.2 sysv_signal F
 GLIBC_2.2 tcgetsid F
 GLIBC_2.2 tdestroy F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 tmpfile F
 GLIBC_2.2 tmpfile64 F
 GLIBC_2.2 truncate64 F
@@ -2596,6 +2598,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/librt.abilist b/sysdeps/unix/sysv/linux/mips/mips32/librt.abilist
index da85415743..dbc81ebe4b 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
index ac245f4413..d62382883b 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
@@ -1991,6 +1991,8 @@ GLIBC_2.2 sys_siglist D 0x100
 GLIBC_2.2 sysv_signal F
 GLIBC_2.2 tcgetsid F
 GLIBC_2.2 tdestroy F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 tmpfile F
 GLIBC_2.2 tmpfile64 F
 GLIBC_2.2 truncate64 F
@@ -2594,6 +2596,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
index f17c4b3412..28a8a5d294 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
@@ -1989,6 +1989,8 @@ GLIBC_2.2 sys_siglist D 0x100
 GLIBC_2.2 sysv_signal F
 GLIBC_2.2 tcgetsid F
 GLIBC_2.2 tdestroy F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 tmpfile F
 GLIBC_2.2 tmpfile64 F
 GLIBC_2.2 truncate64 F
@@ -2602,6 +2604,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/librt.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/librt.abilist
index da85415743..dbc81ebe4b 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
index 4d9dea349d..6748f9beef 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
@@ -1985,6 +1985,8 @@ GLIBC_2.2 sys_siglist D 0x200
 GLIBC_2.2 sysv_signal F
 GLIBC_2.2 tcgetsid F
 GLIBC_2.2 tdestroy F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 tmpfile F
 GLIBC_2.2 tmpfile64 F
 GLIBC_2.2 truncate64 F
@@ -2517,6 +2519,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/librt.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n64/librt.abilist
index 51354b072d..00fd77bbab 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/nios2/libc.abilist b/sysdeps/unix/sysv/linux/nios2/libc.abilist
index a1f3808f18..03d13e5ee1 100644
--- a/sysdeps/unix/sysv/linux/nios2/libc.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/libc.abilist
@@ -2052,6 +2052,8 @@ GLIBC_2.21 tfind F
 GLIBC_2.21 time F
 GLIBC_2.21 timegm F
 GLIBC_2.21 timelocal F
+GLIBC_2.21 timer_create F
+GLIBC_2.21 timer_delete F
 GLIBC_2.21 timerfd_create F
 GLIBC_2.21 timerfd_gettime F
 GLIBC_2.21 timerfd_settime F
@@ -2641,6 +2643,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/nios2/librt.abilist b/sysdeps/unix/sysv/linux/nios2/librt.abilist
index 29111b77bd..a83ae32d03 100644
--- a/sysdeps/unix/sysv/linux/nios2/librt.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.21 timer_create F
-GLIBC_2.21 timer_delete F
 GLIBC_2.21 timer_getoverrun F
 GLIBC_2.21 timer_gettime F
 GLIBC_2.21 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
index c80718d0b1..c9a45ecb17 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
@@ -2067,6 +2067,8 @@ GLIBC_2.2 svc_max_pollfd D 0x4
 GLIBC_2.2 svc_pollfd D 0x4
 GLIBC_2.2 swprintf F
 GLIBC_2.2 swscanf F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 ungetwc F
 GLIBC_2.2 vfwprintf F
 GLIBC_2.2 vfwscanf F
@@ -2658,6 +2660,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/librt.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/librt.abilist
index cfe4455a75..1268c7fc38 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/librt.abilist
@@ -1,6 +1,4 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
index 8156d06db5..c7fbc347a1 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
@@ -2071,6 +2071,8 @@ GLIBC_2.2 svc_max_pollfd D 0x4
 GLIBC_2.2 svc_pollfd D 0x4
 GLIBC_2.2 swprintf F
 GLIBC_2.2 swscanf F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 ungetwc F
 GLIBC_2.2 vfwprintf F
 GLIBC_2.2 vfwscanf F
@@ -2691,6 +2693,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions b/sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions
index 84c809507f..4eb22c11ac 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions
@@ -29,7 +29,7 @@ libc {
 librt {
   GLIBC_2.3.3 {
     # Changed timer_t.
-    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_getoverrun; timer_gettime;
     timer_settime;
   }
 }
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
index a99bd9409b..fb5eb9c67e 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
@@ -1886,6 +1886,8 @@ GLIBC_2.3 tfind F
 GLIBC_2.3 time F
 GLIBC_2.3 timegm F
 GLIBC_2.3 timelocal F
+GLIBC_2.3 timer_create F
+GLIBC_2.3 timer_delete F
 GLIBC_2.3 times F
 GLIBC_2.3 timezone D 0x8
 GLIBC_2.3 tmpfile F
@@ -2162,6 +2164,8 @@ GLIBC_2.3.3 strtoll_l F
 GLIBC_2.3.3 strtoull_l F
 GLIBC_2.3.3 sys_sigabbrev D 0x208
 GLIBC_2.3.3 sys_siglist D 0x208
+GLIBC_2.3.3 timer_create F
+GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.4 __chk_fail F
 GLIBC_2.3.4 __fprintf_chk F
 GLIBC_2.3.4 __gets_chk F
@@ -2425,6 +2429,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/librt.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/librt.abilist
index 9df959a434..914203b043 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/librt.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/librt.abilist
@@ -1,10 +1,6 @@
-GLIBC_2.3 timer_create F
-GLIBC_2.3 timer_delete F
 GLIBC_2.3 timer_getoverrun F
 GLIBC_2.3 timer_gettime F
 GLIBC_2.3 timer_settime F
-GLIBC_2.3.3 timer_create F
-GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.3 timer_getoverrun F
 GLIBC_2.3.3 timer_gettime F
 GLIBC_2.3.3 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
index ae562f2864..b89256aba0 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
@@ -2094,6 +2094,8 @@ GLIBC_2.17 tfind F
 GLIBC_2.17 time F
 GLIBC_2.17 timegm F
 GLIBC_2.17 timelocal F
+GLIBC_2.17 timer_create F
+GLIBC_2.17 timer_delete F
 GLIBC_2.17 timerfd_create F
 GLIBC_2.17 timerfd_gettime F
 GLIBC_2.17 timerfd_settime F
@@ -2725,6 +2727,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/librt.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/librt.abilist
index 54bb3e5c7c..34768d1472 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/librt.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.17 timer_create F
-GLIBC_2.17 timer_delete F
 GLIBC_2.17 timer_getoverrun F
 GLIBC_2.17 timer_gettime F
 GLIBC_2.17 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_create.c b/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_create.c
deleted file mode 100644
index d307135003..0000000000
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_create.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_create.c>
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_delete.c b/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_delete.c
deleted file mode 100644
index 2dd94f5c7a..0000000000
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_delete.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_delete.c>
diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
index 7422465183..c653f52373 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
@@ -1950,6 +1950,8 @@ GLIBC_2.33 thrd_yield F
 GLIBC_2.33 time F
 GLIBC_2.33 timegm F
 GLIBC_2.33 timelocal F
+GLIBC_2.33 timer_create F
+GLIBC_2.33 timer_delete F
 GLIBC_2.33 timerfd_create F
 GLIBC_2.33 timerfd_gettime F
 GLIBC_2.33 timerfd_settime F
@@ -2290,6 +2292,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/librt.abilist b/sysdeps/unix/sysv/linux/riscv/rv32/librt.abilist
index 540cdef209..09bbee0960 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.33 timer_create F
-GLIBC_2.33 timer_delete F
 GLIBC_2.33 timer_getoverrun F
 GLIBC_2.33 timer_gettime F
 GLIBC_2.33 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
index 0bb8343ac4..711484eee5 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
@@ -2016,6 +2016,8 @@ GLIBC_2.27 tfind F
 GLIBC_2.27 time F
 GLIBC_2.27 timegm F
 GLIBC_2.27 timelocal F
+GLIBC_2.27 timer_create F
+GLIBC_2.27 timer_delete F
 GLIBC_2.27 timerfd_create F
 GLIBC_2.27 timerfd_gettime F
 GLIBC_2.27 timerfd_settime F
@@ -2490,6 +2492,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/librt.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/librt.abilist
index e436beaf7e..8e1d8b21fe 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.27 timer_create F
-GLIBC_2.27 timer_delete F
 GLIBC_2.27 timer_getoverrun F
 GLIBC_2.27 timer_gettime F
 GLIBC_2.27 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
index f9db909d63..4040312275 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
@@ -2065,6 +2065,8 @@ GLIBC_2.2 svc_max_pollfd D 0x4
 GLIBC_2.2 svc_pollfd D 0x4
 GLIBC_2.2 swprintf F
 GLIBC_2.2 swscanf F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 ungetwc F
 GLIBC_2.2 versionsort64 F
 GLIBC_2.2 vfwprintf F
@@ -2656,6 +2658,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/librt.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/librt.abilist
index cfe4455a75..1268c7fc38 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/librt.abilist
@@ -1,6 +1,4 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/Versions b/sysdeps/unix/sysv/linux/s390/s390-64/Versions
index 3f4d960421..5989ac75a9 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/Versions
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/Versions
@@ -9,7 +9,7 @@ libc {
 librt {
   GLIBC_2.3.3 {
     # Changed timer_t.
-    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_getoverrun; timer_gettime;
     timer_settime;
   }
 }
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
index 593e5f9ae7..4cf6a5ea09 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
@@ -1761,6 +1761,8 @@ GLIBC_2.2 tfind F
 GLIBC_2.2 time F
 GLIBC_2.2 timegm F
 GLIBC_2.2 timelocal F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 times F
 GLIBC_2.2 timezone D 0x8
 GLIBC_2.2 tmpfile F
@@ -2208,6 +2210,8 @@ GLIBC_2.3.3 strtoll_l F
 GLIBC_2.3.3 strtoull_l F
 GLIBC_2.3.3 sys_sigabbrev D 0x208
 GLIBC_2.3.3 sys_siglist D 0x208
+GLIBC_2.3.3 timer_create F
+GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.4 __chk_fail F
 GLIBC_2.3.4 __fprintf_chk F
 GLIBC_2.3.4 __gets_chk F
@@ -2462,6 +2466,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/librt.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/librt.abilist
index 9e185ecaef..34e8d31133 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/librt.abilist
@@ -1,10 +1,6 @@
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
-GLIBC_2.3.3 timer_create F
-GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.3 timer_getoverrun F
 GLIBC_2.3.3 timer_gettime F
 GLIBC_2.3.3 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/timer_create.c b/sysdeps/unix/sysv/linux/s390/s390-64/timer_create.c
deleted file mode 100644
index d307135003..0000000000
--- a/sysdeps/unix/sysv/linux/s390/s390-64/timer_create.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_create.c>
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/timer_delete.c b/sysdeps/unix/sysv/linux/s390/s390-64/timer_delete.c
deleted file mode 100644
index 2dd94f5c7a..0000000000
--- a/sysdeps/unix/sysv/linux/s390/s390-64/timer_delete.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_delete.c>
diff --git a/sysdeps/unix/sysv/linux/sh/be/libc.abilist b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
index 8da4e375d9..6fd93a5445 100644
--- a/sysdeps/unix/sysv/linux/sh/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
@@ -1748,6 +1748,8 @@ GLIBC_2.2 tfind F
 GLIBC_2.2 time F
 GLIBC_2.2 timegm F
 GLIBC_2.2 timelocal F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 times F
 GLIBC_2.2 timezone D 0x4
 GLIBC_2.2 tmpfile F
@@ -2511,6 +2513,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/sh/be/librt.abilist b/sysdeps/unix/sysv/linux/sh/be/librt.abilist
index cfe4455a75..1268c7fc38 100644
--- a/sysdeps/unix/sysv/linux/sh/be/librt.abilist
+++ b/sysdeps/unix/sysv/linux/sh/be/librt.abilist
@@ -1,6 +1,4 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/sh/le/libc.abilist b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
index 6f13625e6f..c5c41bf0e6 100644
--- a/sysdeps/unix/sysv/linux/sh/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
@@ -1748,6 +1748,8 @@ GLIBC_2.2 tfind F
 GLIBC_2.2 time F
 GLIBC_2.2 timegm F
 GLIBC_2.2 timelocal F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 times F
 GLIBC_2.2 timezone D 0x4
 GLIBC_2.2 tmpfile F
@@ -2508,6 +2510,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/sh/le/librt.abilist b/sysdeps/unix/sysv/linux/sh/le/librt.abilist
index cfe4455a75..1268c7fc38 100644
--- a/sysdeps/unix/sysv/linux/sh/le/librt.abilist
+++ b/sysdeps/unix/sysv/linux/sh/le/librt.abilist
@@ -1,6 +1,4 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
index 984222296d..132470d40b 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
@@ -2060,6 +2060,8 @@ GLIBC_2.2 svc_max_pollfd D 0x4
 GLIBC_2.2 svc_pollfd D 0x4
 GLIBC_2.2 swprintf F
 GLIBC_2.2 swscanf F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 ungetwc F
 GLIBC_2.2 vfwprintf F
 GLIBC_2.2 vfwscanf F
@@ -2651,6 +2653,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/librt.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/librt.abilist
index fb3a2042e0..d8ff3b0988 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/librt.abilist
@@ -1,6 +1,4 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/Versions b/sysdeps/unix/sysv/linux/sparc/sparc64/Versions
index 33b6779ec5..358081399a 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/Versions
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/Versions
@@ -14,7 +14,7 @@ libc {
 librt {
   GLIBC_2.3.3 {
     # Changed timer_t.
-    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_getoverrun; timer_gettime;
     timer_settime;
   }
 }
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
index a6dc7f2e40..6ee552611b 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
@@ -1791,6 +1791,8 @@ GLIBC_2.2 tfind F
 GLIBC_2.2 time F
 GLIBC_2.2 timegm F
 GLIBC_2.2 timelocal F
+GLIBC_2.2 timer_create F
+GLIBC_2.2 timer_delete F
 GLIBC_2.2 times F
 GLIBC_2.2 timezone D 0x8
 GLIBC_2.2 tmpfile F
@@ -2242,6 +2244,8 @@ GLIBC_2.3.3 strtoll_l F
 GLIBC_2.3.3 strtoull_l F
 GLIBC_2.3.3 sys_sigabbrev D 0x208
 GLIBC_2.3.3 sys_siglist D 0x208
+GLIBC_2.3.3 timer_create F
+GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.4 __chk_fail F
 GLIBC_2.3.4 __fprintf_chk F
 GLIBC_2.3.4 __gets_chk F
@@ -2484,6 +2488,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/librt.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/librt.abilist
index 8592c90bdf..3b744cf5a1 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/librt.abilist
@@ -1,12 +1,8 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_create F
-GLIBC_2.2 timer_delete F
 GLIBC_2.2 timer_getoverrun F
 GLIBC_2.2 timer_gettime F
 GLIBC_2.2 timer_settime F
 GLIBC_2.3 __librt_version_placeholder F
-GLIBC_2.3.3 timer_create F
-GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.3 timer_getoverrun F
 GLIBC_2.3.3 timer_gettime F
 GLIBC_2.3.3 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/timer_create.c b/sysdeps/unix/sysv/linux/sparc/sparc64/timer_create.c
deleted file mode 100644
index d307135003..0000000000
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/timer_create.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_create.c>
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/timer_delete.c b/sysdeps/unix/sysv/linux/sparc/sparc64/timer_delete.c
deleted file mode 100644
index 2dd94f5c7a..0000000000
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/timer_delete.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_delete.c>
diff --git a/sysdeps/unix/sysv/linux/timer_create.c b/sysdeps/unix/sysv/linux/timer_create.c
index 3dcd5455fc..9861177cf2 100644
--- a/sysdeps/unix/sysv/linux/timer_create.c
+++ b/sysdeps/unix/sysv/linux/timer_create.c
@@ -27,17 +27,11 @@
 #include <pthreadP.h>
 #include <kernel-posix-timers.h>
 #include "kernel-posix-cpu-timers.h"
-
-
-#ifdef timer_create_alias
-# define timer_create timer_create_alias
-#endif
-
+#include <shlib-compat.h>
 
 int
-timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
+___timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
 {
-#undef timer_create
   {
     clockid_t syscall_clockid = (clock_id == CLOCK_PROCESS_CPUTIME_ID
 				 ? MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED)
@@ -74,7 +68,7 @@ timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
     else
       {
 	/* Create the helper thread.  */
-	pthread_once (&__timer_helper_once, __timer_start_helper_thread);
+	__pthread_once (&__timer_helper_once, __timer_start_helper_thread);
 	if (__timer_helper_tid == 0)
 	  {
 	    /* No resources to start the helper thread.  */
@@ -93,7 +87,7 @@ timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
 	/* We cannot simply copy the thread attributes since the
 	   implementation might keep internal information for
 	   each instance.  */
-	pthread_attr_init (&newp->attr);
+	__pthread_attr_init (&newp->attr);
 	if (evp->sigev_notify_attributes != NULL)
 	  {
 	    struct pthread_attr *nattr;
@@ -111,7 +105,7 @@ timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
 	  }
 
 	/* In any case set the detach flag.  */
-	pthread_attr_setdetachstate (&newp->attr, PTHREAD_CREATE_DETACHED);
+	__pthread_attr_setdetachstate (&newp->attr, PTHREAD_CREATE_DETACHED);
 
 	/* Create the event structure for the kernel timer.  */
 	struct sigevent sev =
@@ -132,10 +126,10 @@ timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
 	  }
 
 	/* Add to the queue of active timers with thread delivery.  */
-	pthread_mutex_lock (&__timer_active_sigev_thread_lock);
+	__pthread_mutex_lock (&__timer_active_sigev_thread_lock);
 	newp->next = __timer_active_sigev_thread;
 	__timer_active_sigev_thread = newp;
-	pthread_mutex_unlock (&__timer_active_sigev_thread_lock);
+	__pthread_mutex_unlock (&__timer_active_sigev_thread_lock);
 
 	*timerid = timer_to_timerid (newp);
       }
@@ -143,3 +137,52 @@ timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
 
   return 0;
 }
+versioned_symbol (libc, ___timer_create, timer_create, GLIBC_2_34);
+libc_hidden_ver (___timer_create, __timer_create)
+
+#if TIMER_T_WAS_INT_COMPAT
+# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_3, GLIBC_2_34)
+compat_symbol (librt, ___timer_create, timer_create, GLIBC_2_3_3);
+# endif
+
+# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
+timer_t __timer_compat_list[OLD_TIMER_MAX] __attribute__ ((nocommon));
+libc_hidden_data_def (__timer_compat_list)
+
+int
+__timer_create_old (clockid_t clock_id, struct sigevent *evp, int *timerid)
+{
+  timer_t newp;
+
+  int res = __timer_create (clock_id, evp, &newp);
+  if (res == 0)
+    {
+      int i;
+      for (i = 0; i < OLD_TIMER_MAX; ++i)
+	if (__timer_compat_list[i] == NULL
+	    && ! atomic_compare_and_exchange_bool_acq (&__timer_compat_list[i],
+						       newp, NULL))
+	  {
+	    *timerid = i;
+	    break;
+	  }
+
+      if (__glibc_unlikely (i == OLD_TIMER_MAX))
+	{
+	  /* No free slot.  */
+	  (void) __timer_delete (newp);
+	  __set_errno (EINVAL);
+	  res = -1;
+	}
+    }
+
+  return res;
+}
+compat_symbol (librt, __timer_create_old, timer_create, GLIBC_2_2);
+# endif /* OTHER_SHLIB_COMPAT */
+
+#else /* !TIMER_T_WAS_INT_COMPAT */
+# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_34)
+compat_symbol (librt, ___timer_create, timer_create, GLIBC_2_2);
+# endif
+#endif /* !TIMER_T_WAS_INT_COMPAT */
diff --git a/sysdeps/unix/sysv/linux/timer_delete.c b/sysdeps/unix/sysv/linux/timer_delete.c
index ee8c364d95..074a489afd 100644
--- a/sysdeps/unix/sysv/linux/timer_delete.c
+++ b/sysdeps/unix/sysv/linux/timer_delete.c
@@ -21,17 +21,12 @@
 #include <time.h>
 #include <sysdep.h>
 #include <kernel-posix-timers.h>
-
-
-#ifdef timer_delete_alias
-# define timer_delete timer_delete_alias
-#endif
-
+#include <pthreadP.h>
+#include <shlib-compat.h>
 
 int
-timer_delete (timer_t timerid)
+___timer_delete (timer_t timerid)
 {
-#undef timer_delete
   kernel_timer_t ktimerid = timerid_to_kernel_timer (timerid);
   int res = INLINE_SYSCALL_CALL (timer_delete, ktimerid);
 
@@ -42,7 +37,7 @@ timer_delete (timer_t timerid)
 	  struct timer *kt = timerid_to_timer (timerid);
 
 	  /* Remove the timer from the list.  */
-	  pthread_mutex_lock (&__timer_active_sigev_thread_lock);
+	  __pthread_mutex_lock (&__timer_active_sigev_thread_lock);
 	  if (__timer_active_sigev_thread == kt)
 	    __timer_active_sigev_thread = kt->next;
 	  else
@@ -57,7 +52,7 @@ timer_delete (timer_t timerid)
 		else
 		  prevp = prevp->next;
 	    }
-	  pthread_mutex_unlock (&__timer_active_sigev_thread_lock);
+	  __pthread_mutex_unlock (&__timer_active_sigev_thread_lock);
 
 	  free (kt);
 	}
@@ -69,3 +64,34 @@ timer_delete (timer_t timerid)
      Return the error.  */
   return -1;
 }
+versioned_symbol (libc, ___timer_delete, timer_delete, GLIBC_2_34);
+libc_hidden_ver (___timer_delete, __timer_delete)
+
+#if TIMER_T_WAS_INT_COMPAT
+# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_3, GLIBC_2_34)
+compat_symbol (librt, ___timer_delete, timer_delete, GLIBC_2_3_3);
+#endif
+
+# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
+int
+__timer_delete_old (int timerid)
+{
+  int res = __timer_delete (__timer_compat_list[timerid]);
+
+  if (res == 0)
+    /* Successful timer deletion, now free the index.  We only need to
+       store a word and that better be atomic.  */
+    __timer_compat_list[timerid] = NULL;
+
+  return res;
+}
+compat_symbol (librt, __timer_delete_old, timer_delete, GLIBC_2_2);
+# endif /* OTHER_SHLIB_COMPAT */
+
+#else /* !TIMER_T_WAS_INT_COMPAT */
+/* The transition from int to timer_t did not change ABI because the
+   type sizes are the same.  */
+# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_34)
+compat_symbol (librt, ___timer_delete, timer_delete, GLIBC_2_2);
+# endif
+#endif /* !TIMER_T_WAS_INT_COMPAT */
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
index 5d0a9c4012..377d35a04f 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
@@ -1760,6 +1760,8 @@ GLIBC_2.2.5 tfind F
 GLIBC_2.2.5 time F
 GLIBC_2.2.5 timegm F
 GLIBC_2.2.5 timelocal F
+GLIBC_2.2.5 timer_create F
+GLIBC_2.2.5 timer_delete F
 GLIBC_2.2.5 times F
 GLIBC_2.2.5 timezone D 0x8
 GLIBC_2.2.5 tmpfile F
@@ -2196,6 +2198,8 @@ GLIBC_2.3.3 strtoll_l F
 GLIBC_2.3.3 strtoull_l F
 GLIBC_2.3.3 sys_sigabbrev D 0x208
 GLIBC_2.3.3 sys_siglist D 0x208
+GLIBC_2.3.3 timer_create F
+GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.4 __chk_fail F
 GLIBC_2.3.4 __fprintf_chk F
 GLIBC_2.3.4 __gets_chk F
@@ -2440,6 +2444,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/librt.abilist b/sysdeps/unix/sysv/linux/x86_64/64/librt.abilist
index ce501e124d..13a2bf2022 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/librt.abilist
@@ -1,10 +1,6 @@
-GLIBC_2.2.5 timer_create F
-GLIBC_2.2.5 timer_delete F
 GLIBC_2.2.5 timer_getoverrun F
 GLIBC_2.2.5 timer_gettime F
 GLIBC_2.2.5 timer_settime F
-GLIBC_2.3.3 timer_create F
-GLIBC_2.3.3 timer_delete F
 GLIBC_2.3.3 timer_getoverrun F
 GLIBC_2.3.3 timer_gettime F
 GLIBC_2.3.3 timer_settime F
diff --git a/sysdeps/unix/sysv/linux/x86_64/Versions b/sysdeps/unix/sysv/linux/x86_64/Versions
index 2a7ed280fd..c4d1c5fb79 100644
--- a/sysdeps/unix/sysv/linux/x86_64/Versions
+++ b/sysdeps/unix/sysv/linux/x86_64/Versions
@@ -11,7 +11,7 @@ libc {
 librt {
   GLIBC_2.3.3 {
     # Changed timer_t.
-    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_getoverrun; timer_gettime;
     timer_settime;
   }
 }
diff --git a/sysdeps/unix/sysv/linux/x86_64/compat-timer.h b/sysdeps/unix/sysv/linux/x86_64/compat-timer.h
index 334808b5ac..c61eb40070 100644
--- a/sysdeps/unix/sysv/linux/x86_64/compat-timer.h
+++ b/sysdeps/unix/sysv/linux/x86_64/compat-timer.h
@@ -20,14 +20,6 @@
 #include <time.h>
 #include <sys/types.h>
 
-#define OLD_TIMER_MAX	256
-
-extern timer_t __compat_timer_list[OLD_TIMER_MAX] attribute_hidden;
-
-
-extern int __timer_create_new (clockid_t clock_id, struct sigevent *evp,
-			       timer_t *timerid);
-extern int __timer_delete_new (timer_t timerid);
 extern int __timer_getoverrun_new (timer_t timerid);
 extern int __timer_gettime_new (timer_t timerid, struct itimerspec *value);
 extern int __timer_settime_new (timer_t timerid, int flags,
diff --git a/sysdeps/unix/sysv/linux/x86_64/timer_create.c b/sysdeps/unix/sysv/linux/x86_64/timer_create.c
deleted file mode 100644
index ec71ae488b..0000000000
--- a/sysdeps/unix/sysv/linux/x86_64/timer_create.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/* Copyright (C) 2003-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
-   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; see the file COPYING.LIB.  If
-   not, see <https://www.gnu.org/licenses/>.  */
-
-#include <shlib-compat.h>
-#include "compat-timer.h"
-#include <atomic.h>
-
-
-#define timer_create_alias __timer_create_new
-#include <sysdeps/unix/sysv/linux/timer_create.c>
-
-#undef timer_create
-versioned_symbol (librt, __timer_create_new, timer_create, GLIBC_2_3_3);
-
-
-#if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
-timer_t __compat_timer_list[OLD_TIMER_MAX] attribute_hidden;
-
-
-int
-__timer_create_old (clockid_t clock_id, struct sigevent *evp, int *timerid)
-{
-  timer_t newp;
-
-  int res = __timer_create_new (clock_id, evp, &newp);
-  if (res == 0)
-    {
-      int i;
-      for (i = 0; i < OLD_TIMER_MAX; ++i)
-	if (__compat_timer_list[i] == NULL
-	    && ! atomic_compare_and_exchange_bool_acq (&__compat_timer_list[i],
-						       newp, NULL))
-	  {
-	    *timerid = i;
-	    break;
-	  }
-
-      if (__glibc_unlikely (i == OLD_TIMER_MAX))
-	{
-	  /* No free slot.  */
-	  (void) __timer_delete_new (newp);
-	  __set_errno (EINVAL);
-	  res = -1;
-	}
-    }
-
-  return res;
-}
-compat_symbol (librt, __timer_create_old, timer_create, GLIBC_2_2);
-#endif
diff --git a/sysdeps/unix/sysv/linux/x86_64/timer_delete.c b/sysdeps/unix/sysv/linux/x86_64/timer_delete.c
deleted file mode 100644
index 7fc37fc1a7..0000000000
--- a/sysdeps/unix/sysv/linux/x86_64/timer_delete.c
+++ /dev/null
@@ -1,44 +0,0 @@
-/* Copyright (C) 2003-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
-   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; see the file COPYING.LIB.  If
-   not, see <https://www.gnu.org/licenses/>.  */
-
-#include <shlib-compat.h>
-#include "compat-timer.h"
-
-
-#define timer_delete_alias __timer_delete_new
-#include <sysdeps/unix/sysv/linux/timer_delete.c>
-
-#undef timer_delete
-versioned_symbol (librt, __timer_delete_new, timer_delete, GLIBC_2_3_3);
-
-
-#if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
-int
-__timer_delete_old (int timerid)
-{
-  int res = __timer_delete_new (__compat_timer_list[timerid]);
-
-  if (res == 0)
-    /* Successful timer deletion, now free the index.  We only need to
-       store a word and that better be atomic.  */
-    __compat_timer_list[timerid] = NULL;
-
-  return res;
-}
-compat_symbol (librt, __timer_delete_old, timer_delete, GLIBC_2_2);
-#endif
diff --git a/sysdeps/unix/sysv/linux/x86_64/timer_getoverr.c b/sysdeps/unix/sysv/linux/x86_64/timer_getoverr.c
index 9b4c1b2235..fb6e631a00 100644
--- a/sysdeps/unix/sysv/linux/x86_64/timer_getoverr.c
+++ b/sysdeps/unix/sysv/linux/x86_64/timer_getoverr.c
@@ -32,7 +32,7 @@ versioned_symbol (librt, __timer_getoverrun_new, timer_getoverrun,
 int
 __timer_getoverrun_old (int timerid)
 {
-  return __timer_getoverrun_new (__compat_timer_list[timerid]);
+  return __timer_getoverrun_new (__timer_compat_list[timerid]);
 }
 compat_symbol (librt, __timer_getoverrun_old, timer_getoverrun, GLIBC_2_2);
 #endif
diff --git a/sysdeps/unix/sysv/linux/x86_64/timer_gettime.c b/sysdeps/unix/sysv/linux/x86_64/timer_gettime.c
index 107b1f97c7..06ccbc40bd 100644
--- a/sysdeps/unix/sysv/linux/x86_64/timer_gettime.c
+++ b/sysdeps/unix/sysv/linux/x86_64/timer_gettime.c
@@ -35,7 +35,7 @@ versioned_symbol (librt, __timer_gettime_new, timer_gettime, GLIBC_2_3_3);
 int
 __timer_gettime_old (int timerid, struct itimerspec *value)
 {
-  return __timer_gettime_new (__compat_timer_list[timerid], value);
+  return __timer_gettime_new (__timer_compat_list[timerid], value);
 }
 compat_symbol (librt, __timer_gettime_old, timer_gettime, GLIBC_2_2);
 #endif
diff --git a/sysdeps/unix/sysv/linux/x86_64/timer_settime.c b/sysdeps/unix/sysv/linux/x86_64/timer_settime.c
index f987cd16d3..dd7d01e849 100644
--- a/sysdeps/unix/sysv/linux/x86_64/timer_settime.c
+++ b/sysdeps/unix/sysv/linux/x86_64/timer_settime.c
@@ -37,7 +37,7 @@ int
 __timer_settime_old (int timerid, int flags, const struct itimerspec *value,
 		     struct itimerspec *ovalue)
 {
-  return __timer_settime_new (__compat_timer_list[timerid], flags,
+  return __timer_settime_new (__timer_compat_list[timerid], flags,
 			      value, ovalue);
 }
 compat_symbol (librt, __timer_settime_old, timer_settime, GLIBC_2_2);
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
index d67ef0b6d5..620f35836c 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
@@ -2011,6 +2011,8 @@ GLIBC_2.16 tfind F
 GLIBC_2.16 time F
 GLIBC_2.16 timegm F
 GLIBC_2.16 timelocal F
+GLIBC_2.16 timer_create F
+GLIBC_2.16 timer_delete F
 GLIBC_2.16 timerfd_create F
 GLIBC_2.16 timerfd_gettime F
 GLIBC_2.16 timerfd_settime F
@@ -2544,6 +2546,8 @@ GLIBC_2.34 thrd_create F
 GLIBC_2.34 thrd_detach F
 GLIBC_2.34 thrd_exit F
 GLIBC_2.34 thrd_join F
+GLIBC_2.34 timer_create F
+GLIBC_2.34 timer_delete F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/librt.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/librt.abilist
index 3144e2e290..4b3e816fdd 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/librt.abilist
@@ -1,5 +1,3 @@
-GLIBC_2.16 timer_create F
-GLIBC_2.16 timer_delete F
 GLIBC_2.16 timer_getoverrun F
 GLIBC_2.16 timer_gettime F
 GLIBC_2.16 timer_settime F
