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* [glibc/fw/librt] Linux: Move timer_settime from librt to libc
@ 2021-06-03 20:28 Florian Weimer
  0 siblings, 0 replies; only message in thread
From: Florian Weimer @ 2021-06-03 20:28 UTC (permalink / raw)
  To: glibc-cvs

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e6c1385ce84c9896e0ad51cd9db326a0191bf160

commit e6c1385ce84c9896e0ad51cd9db326a0191bf160
Author: Florian Weimer <fweimer@redhat.com>
Date:   Thu Jun 3 20:17:13 2021 +0200

    Linux: Move timer_settime from librt to libc
    
    The symbol was moved using scripts/move-symbol-to-libc.py.
    
    This commit adds a separate wordsize-64 implementation that
    implements the int/timer_t ABI transition on the affected
    architectures.  The default implementation is now 32-bit only.
    
    The shared librt is now empty, so this commit adds a placeholder
    symbol at the base version, and potentially at the GLIBC_2.3.3
    version as well (the leftover from the int/timer_t ABI transition).

Diff:
---
 include/time.h                                     |  6 +++-
 rt/Makefile                                        |  2 +-
 rt/Versions                                        |  8 +++--
 rt/librt-compat.c                                  | 16 ++++++----
 sysdeps/unix/sysv/linux/aarch64/libc.abilist       |  2 ++
 sysdeps/unix/sysv/linux/aarch64/librt.abilist      |  2 +-
 sysdeps/unix/sysv/linux/alpha/Versions             |  4 ---
 sysdeps/unix/sysv/linux/alpha/libc.abilist         |  3 ++
 sysdeps/unix/sysv/linux/alpha/librt-compat.c       |  2 +-
 sysdeps/unix/sysv/linux/alpha/librt.abilist        |  4 +--
 sysdeps/unix/sysv/linux/alpha/timer_settime.c      |  1 -
 sysdeps/unix/sysv/linux/arc/libc.abilist           |  2 ++
 sysdeps/unix/sysv/linux/arc/librt.abilist          |  2 +-
 sysdeps/unix/sysv/linux/arm/be/libc.abilist        |  2 ++
 sysdeps/unix/sysv/linux/arm/be/librt.abilist       |  2 +-
 sysdeps/unix/sysv/linux/arm/le/libc.abilist        |  2 ++
 sysdeps/unix/sysv/linux/arm/le/librt.abilist       |  2 +-
 sysdeps/unix/sysv/linux/csky/libc.abilist          |  2 ++
 sysdeps/unix/sysv/linux/csky/librt.abilist         |  2 +-
 sysdeps/unix/sysv/linux/hppa/libc.abilist          |  2 ++
 sysdeps/unix/sysv/linux/hppa/librt.abilist         |  2 +-
 sysdeps/unix/sysv/linux/i386/libc.abilist          |  2 ++
 sysdeps/unix/sysv/linux/i386/librt.abilist         |  2 +-
 sysdeps/unix/sysv/linux/ia64/Versions              |  6 ----
 sysdeps/unix/sysv/linux/ia64/libc.abilist          |  3 ++
 sysdeps/unix/sysv/linux/ia64/librt.abilist         |  4 +--
 sysdeps/unix/sysv/linux/ia64/timer_settime.c       |  1 -
 sysdeps/unix/sysv/linux/librt-compat.c             | 25 +++++++++++++++
 sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist |  2 ++
 .../unix/sysv/linux/m68k/coldfire/librt.abilist    |  2 +-
 sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist   |  2 ++
 sysdeps/unix/sysv/linux/m68k/m680x0/librt.abilist  |  2 +-
 sysdeps/unix/sysv/linux/microblaze/be/libc.abilist |  2 ++
 .../unix/sysv/linux/microblaze/be/librt.abilist    |  2 +-
 sysdeps/unix/sysv/linux/microblaze/le/libc.abilist |  2 ++
 .../unix/sysv/linux/microblaze/le/librt.abilist    |  2 +-
 .../unix/sysv/linux/mips/mips32/fpu/libc.abilist   |  2 ++
 sysdeps/unix/sysv/linux/mips/mips32/librt.abilist  |  2 +-
 .../unix/sysv/linux/mips/mips32/nofpu/libc.abilist |  2 ++
 sysdeps/unix/sysv/linux/mips/mips64/librt.abilist  |  2 +-
 .../unix/sysv/linux/mips/mips64/n32/libc.abilist   |  2 ++
 .../unix/sysv/linux/mips/mips64/n64/libc.abilist   |  2 ++
 .../sysv/linux/mips/mips64/n64/timer_settime.c     |  2 ++
 sysdeps/unix/sysv/linux/nios2/libc.abilist         |  2 ++
 sysdeps/unix/sysv/linux/nios2/librt.abilist        |  2 +-
 .../sysv/linux/powerpc/powerpc32/fpu/libc.abilist  |  2 ++
 .../sysv/linux/powerpc/powerpc32/librt.abilist     |  2 +-
 .../linux/powerpc/powerpc32/nofpu/libc.abilist     |  2 ++
 sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions |  7 ----
 .../sysv/linux/powerpc/powerpc64/be/libc.abilist   |  3 ++
 .../sysv/linux/powerpc/powerpc64/be/librt.abilist  |  4 +--
 .../sysv/linux/powerpc/powerpc64/le/libc.abilist   |  2 ++
 .../sysv/linux/powerpc/powerpc64/le/librt.abilist  |  2 +-
 .../sysv/linux/powerpc/powerpc64/timer_settime.c   |  1 -
 sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist    |  2 ++
 sysdeps/unix/sysv/linux/riscv/rv32/librt.abilist   |  2 +-
 sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist    |  2 ++
 sysdeps/unix/sysv/linux/riscv/rv64/librt.abilist   |  2 +-
 sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist  |  2 ++
 sysdeps/unix/sysv/linux/s390/s390-32/librt.abilist |  2 +-
 sysdeps/unix/sysv/linux/s390/s390-64/Versions      |  7 ----
 sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist  |  3 ++
 sysdeps/unix/sysv/linux/s390/s390-64/librt.abilist |  4 +--
 .../unix/sysv/linux/s390/s390-64/timer_settime.c   |  1 -
 sysdeps/unix/sysv/linux/sh/be/libc.abilist         |  2 ++
 sysdeps/unix/sysv/linux/sh/be/librt.abilist        |  2 +-
 sysdeps/unix/sysv/linux/sh/le/libc.abilist         |  2 ++
 sysdeps/unix/sysv/linux/sh/le/librt.abilist        |  2 +-
 sysdeps/unix/sysv/linux/sparc/librt-compat.c       |  2 +-
 sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist |  2 ++
 .../unix/sysv/linux/sparc/sparc32/librt.abilist    |  2 +-
 sysdeps/unix/sysv/linux/sparc/sparc64/Versions     |  7 ----
 sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist |  3 ++
 .../unix/sysv/linux/sparc/sparc64/librt.abilist    |  4 +--
 .../unix/sysv/linux/sparc/sparc64/timer_settime.c  |  1 -
 sysdeps/unix/sysv/linux/timer_settime.c            | 23 +++++++++++---
 sysdeps/unix/sysv/linux/wordsize-64/Versions       |  9 ++++++
 .../linux/{x86_64 => wordsize-64}/timer_settime.c  | 17 +++++++---
 sysdeps/unix/sysv/linux/x86_64/64/libc.abilist     |  3 ++
 sysdeps/unix/sysv/linux/x86_64/64/librt.abilist    |  4 +--
 sysdeps/unix/sysv/linux/x86_64/Versions            |  7 ----
 sysdeps/unix/sysv/linux/x86_64/compat-timer.h      | 37 ----------------------
 sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist    |  2 ++
 sysdeps/unix/sysv/linux/x86_64/x32/librt.abilist   |  2 +-
 84 files changed, 195 insertions(+), 137 deletions(-)

diff --git a/include/time.h b/include/time.h
index 92a81b858f..447e0d29eb 100644
--- a/include/time.h
+++ b/include/time.h
@@ -236,7 +236,11 @@ extern int __timer_settime64 (timer_t timerid, int flags,
 extern int __timerfd_settime64 (int fd, int flags,
                                 const struct __itimerspec64 *value,
                                 struct __itimerspec64 *ovalue);
-librt_hidden_proto (__timer_settime64);
+# if PTHREAD_IN_LIBC
+libc_hidden_proto (__timer_settime64)
+#else
+librt_hidden_proto (__timer_settime64)
+#endif
 libc_hidden_proto (__timerfd_settime64);
 #endif
 
diff --git a/rt/Makefile b/rt/Makefile
index 3d168f9dc0..a41bdb5728 100644
--- a/rt/Makefile
+++ b/rt/Makefile
@@ -30,7 +30,6 @@ routines = \
 
 librt-routines = \
   librt-compat \
-  timer_settime \
 
 librt-shared-only-routines = librt-compat
 
@@ -63,6 +62,7 @@ $(librt-routines-var) += \
   timer_delete \
   timer_getoverr \
   timer_gettime \
+  timer_settime \
 
 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 d1f05af013..7e41beae06 100644
--- a/rt/Versions
+++ b/rt/Versions
@@ -26,6 +26,7 @@ libc {
     timer_delete;
     timer_getoverrun;
     timer_gettime;
+    timer_settime;
 %endif
     shm_open;
     shm_unlink;
@@ -89,6 +90,7 @@ libc {
     timer_delete;
     timer_getoverrun;
     timer_gettime;
+    timer_settime;
 %endif
     shm_open;
     shm_unlink;
@@ -132,13 +134,15 @@ librt {
 %endif
   }
   GLIBC_2.2 {
-%if !PTHREAD_IN_LIBC
+%if PTHREAD_IN_LIBC
+    __librt_version_placeholder;
+%else
     timer_create;
     timer_delete;
     timer_getoverrun;
     timer_gettime;
-%endif
     timer_settime;
+%endif
   }
   GLIBC_2.3.4 {
 %if PTHREAD_IN_LIBC
diff --git a/rt/librt-compat.c b/rt/librt-compat.c
index 24c2ed9db4..84f50c82a9 100644
--- a/rt/librt-compat.c
+++ b/rt/librt-compat.c
@@ -20,6 +20,7 @@
 # include <shlib-compat.h>
 # include <sys/cdefs.h>
 
+# if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_34)
 void
 attribute_compat_text_section
 __attribute_used__
@@ -27,25 +28,26 @@ __librt_version_placeholder_1 (void)
 {
 }
 
-# if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_2)
 compat_symbol (librt, __librt_version_placeholder_1,
                __librt_version_placeholder, GLIBC_2_1);
 # endif
 
-# if SHLIB_COMPAT (librt, GLIBC_2_4, GLIBC_2_34) \
-  && ABI_librt_GLIBC_2_3_4 != ABI_librt_GLIBC_2_1
+# if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_34)
+compat_symbol (librt, __librt_version_placeholder_1,
+               __librt_version_placeholder, GLIBC_2_2);
+# endif
+
+# if SHLIB_COMPAT (librt, GLIBC_2_3_4, GLIBC_2_34)
 compat_symbol (librt, __librt_version_placeholder_1,
                __librt_version_placeholder, GLIBC_2_3_4);
 # endif
 
-# if SHLIB_COMPAT (librt, GLIBC_2_4, GLIBC_2_34)        \
-  && ABI_librt_GLIBC_2_4 != ABI_librt_GLIBC_2_1
+# if SHLIB_COMPAT (librt, GLIBC_2_4, GLIBC_2_34)
 compat_symbol (librt, __librt_version_placeholder_1,
                __librt_version_placeholder, GLIBC_2_4);
 # endif
 
-# if SHLIB_COMPAT (librt, GLIBC_2_7, GLIBC_2_34) \
-  && ABI_librt_GLIBC_2_7 != ABI_librt_GLIBC_2_4
+# if SHLIB_COMPAT (librt, GLIBC_2_7, GLIBC_2_34)
 compat_symbol (librt, __librt_version_placeholder_1,
                __librt_version_placeholder, GLIBC_2_7);
 # endif
diff --git a/sysdeps/unix/sysv/linux/aarch64/libc.abilist b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
index 132bc7fc1f..546fc700d8 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
@@ -2010,6 +2010,7 @@ 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
 GLIBC_2.17 timerfd_create F
 GLIBC_2.17 timerfd_gettime F
 GLIBC_2.17 timerfd_settime F
@@ -2535,6 +2536,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 2cb1369ddb..88d0fc382f 100644
--- a/sysdeps/unix/sysv/linux/aarch64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/librt.abilist
@@ -1 +1 @@
-GLIBC_2.17 timer_settime F
+GLIBC_2.17 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/alpha/Versions b/sysdeps/unix/sysv/linux/alpha/Versions
index 0359822d6d..87ef61437d 100644
--- a/sysdeps/unix/sysv/linux/alpha/Versions
+++ b/sysdeps/unix/sysv/linux/alpha/Versions
@@ -102,8 +102,4 @@ librt {
   GLIBC_2.3 {
     __librt_version_placeholder;
   }
-  GLIBC_2.3.3 {
-    # Changed timer_t.
-    timer_settime;
-  }
 }
diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist
index 6dfefb451f..875d7a2a27 100644
--- a/sysdeps/unix/sysv/linux/alpha/libc.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist
@@ -2097,6 +2097,7 @@ 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_2.2 ungetwc F
 GLIBC_2.2 vfwprintf F
 GLIBC_2.2 vfwscanf F
@@ -2361,6 +2362,7 @@ 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
 GLIBC_2.3.4 _OtsAddX F
 GLIBC_2.3.4 _OtsConvertFloatTX F
 GLIBC_2.3.4 _OtsConvertFloatXT F
@@ -2633,6 +2635,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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-compat.c b/sysdeps/unix/sysv/linux/alpha/librt-compat.c
index 96e92e1637..7c699d3395 100644
--- a/sysdeps/unix/sysv/linux/alpha/librt-compat.c
+++ b/sysdeps/unix/sysv/linux/alpha/librt-compat.c
@@ -16,7 +16,7 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#include <rt/librt-compat.c>
+#include <sysdeps/unix/sysv/linux/librt-compat.c>
 
 #if SHLIB_COMPAT (librt, GLIBC_2_3, GLIBC_2_34)
 compat_symbol (librt, __librt_version_placeholder_1,
diff --git a/sysdeps/unix/sysv/linux/alpha/librt.abilist b/sysdeps/unix/sysv/linux/alpha/librt.abilist
index a2de1ecd94..f68e03dfde 100644
--- a/sysdeps/unix/sysv/linux/alpha/librt.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/librt.abilist
@@ -1,7 +1,7 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3 __librt_version_placeholder F
-GLIBC_2.3.3 timer_settime F
+GLIBC_2.3.3 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/alpha/timer_settime.c b/sysdeps/unix/sysv/linux/alpha/timer_settime.c
deleted file mode 100644
index fa231149d5..0000000000
--- a/sysdeps/unix/sysv/linux/alpha/timer_settime.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_settime.c>
diff --git a/sysdeps/unix/sysv/linux/arc/libc.abilist b/sysdeps/unix/sysv/linux/arc/libc.abilist
index bd33035c3e..b29233eb1c 100644
--- a/sysdeps/unix/sysv/linux/arc/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arc/libc.abilist
@@ -1944,6 +1944,7 @@ 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
 GLIBC_2.32 timerfd_create F
 GLIBC_2.32 timerfd_gettime F
 GLIBC_2.32 timerfd_settime F
@@ -2294,6 +2295,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 0023244be6..f77591fa3e 100644
--- a/sysdeps/unix/sysv/linux/arc/librt.abilist
+++ b/sysdeps/unix/sysv/linux/arc/librt.abilist
@@ -1 +1 @@
-GLIBC_2.32 timer_settime F
+GLIBC_2.32 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/arm/be/libc.abilist b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
index a94a299962..e5abc6923e 100644
--- a/sysdeps/unix/sysv/linux/arm/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
@@ -357,6 +357,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
@@ -2277,6 +2278,7 @@ 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
 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 b0906ea08a..0010b34d5c 100644
--- a/sysdeps/unix/sysv/linux/arm/be/librt.abilist
+++ b/sysdeps/unix/sysv/linux/arm/be/librt.abilist
@@ -1,2 +1,2 @@
-GLIBC_2.4 timer_settime F
+GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/arm/le/libc.abilist b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
index c6718d3a74..a34202d426 100644
--- a/sysdeps/unix/sysv/linux/arm/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
@@ -354,6 +354,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
@@ -2274,6 +2275,7 @@ 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
 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 b0906ea08a..0010b34d5c 100644
--- a/sysdeps/unix/sysv/linux/arm/le/librt.abilist
+++ b/sysdeps/unix/sysv/linux/arm/le/librt.abilist
@@ -1,2 +1,2 @@
-GLIBC_2.4 timer_settime F
+GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist
index dc7aadc27b..b064054694 100644
--- a/sysdeps/unix/sysv/linux/csky/libc.abilist
+++ b/sysdeps/unix/sysv/linux/csky/libc.abilist
@@ -2034,6 +2034,7 @@ 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
 GLIBC_2.29 timerfd_create F
 GLIBC_2.29 timerfd_gettime F
 GLIBC_2.29 timerfd_settime F
@@ -2478,6 +2479,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 c3573b2d9e..1a55315b87 100644
--- a/sysdeps/unix/sysv/linux/csky/librt.abilist
+++ b/sysdeps/unix/sysv/linux/csky/librt.abilist
@@ -1 +1 @@
-GLIBC_2.29 timer_settime F
+GLIBC_2.29 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist
index 55ed375cf6..c4542690e8 100644
--- a/sysdeps/unix/sysv/linux/hppa/libc.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist
@@ -1748,6 +1748,7 @@ 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_2.2 times F
 GLIBC_2.2 timezone D 0x4
 GLIBC_2.2 tmpfile F
@@ -2431,6 +2432,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 57ce681936..6d24ce527d 100644
--- a/sysdeps/unix/sysv/linux/hppa/librt.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/librt.abilist
@@ -1,5 +1,5 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist
index 8299b919d7..5ab56fc743 100644
--- a/sysdeps/unix/sysv/linux/i386/libc.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libc.abilist
@@ -2110,6 +2110,7 @@ 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_2.2 ungetwc F
 GLIBC_2.2 versionsort64 F
 GLIBC_2.2 vfwprintf F
@@ -2615,6 +2616,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 57ce681936..6d24ce527d 100644
--- a/sysdeps/unix/sysv/linux/i386/librt.abilist
+++ b/sysdeps/unix/sysv/linux/i386/librt.abilist
@@ -1,5 +1,5 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/ia64/Versions b/sysdeps/unix/sysv/linux/ia64/Versions
index 9a7faf067a..9900916a6c 100644
--- a/sysdeps/unix/sysv/linux/ia64/Versions
+++ b/sysdeps/unix/sysv/linux/ia64/Versions
@@ -27,9 +27,3 @@ libc {
     recvmsg; sendmsg;
   }
 }
-librt {
-  GLIBC_2.3.3 {
-    # Changed timer_t.
-    timer_settime;
-  }
-}
diff --git a/sysdeps/unix/sysv/linux/ia64/libc.abilist b/sysdeps/unix/sysv/linux/ia64/libc.abilist
index b7c70a41d3..1b991555c4 100644
--- a/sysdeps/unix/sysv/linux/ia64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libc.abilist
@@ -1769,6 +1769,7 @@ 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_2.2 times F
 GLIBC_2.2 timezone D 0x8
 GLIBC_2.2 tmpfile F
@@ -2226,6 +2227,7 @@ 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
 GLIBC_2.3.4 __chk_fail F
 GLIBC_2.3.4 __fprintf_chk F
 GLIBC_2.3.4 __gets_chk F
@@ -2471,6 +2473,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 7d8e91b0d9..ff77c0d32e 100644
--- a/sysdeps/unix/sysv/linux/ia64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/librt.abilist
@@ -1,6 +1,6 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_settime F
-GLIBC_2.3.3 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
+GLIBC_2.3.3 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/ia64/timer_settime.c b/sysdeps/unix/sysv/linux/ia64/timer_settime.c
deleted file mode 100644
index fa231149d5..0000000000
--- a/sysdeps/unix/sysv/linux/ia64/timer_settime.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_settime.c>
diff --git a/sysdeps/unix/sysv/linux/librt-compat.c b/sysdeps/unix/sysv/linux/librt-compat.c
new file mode 100644
index 0000000000..d719f41f05
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/librt-compat.c
@@ -0,0 +1,25 @@
+/* Placeholder definitions to pull in removed symbol versions.  Linux version.
+   Copyright (C) 2021 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, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <rt/librt-compat.c>
+
+/* GLIBC_2.3.3 symbols were added for the int -> timer_t ABI transition.  */
+#if __WORDSIZE == 64 && OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
+compat_symbol (librt, __librt_version_placeholder_1,
+               __librt_version_placeholder, GLIBC_2_3_3);
+#endif
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
index 921633dd5b..21598ecb8d 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
@@ -358,6 +358,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime F
 GLIBC_2.34 timespec_getres F
 GLIBC_2.34 tss_create F
 GLIBC_2.34 tss_delete F
@@ -2257,6 +2258,7 @@ 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
 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 b0906ea08a..0010b34d5c 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/librt.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/librt.abilist
@@ -1,2 +1,2 @@
-GLIBC_2.4 timer_settime F
+GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
index 1609ab1971..76284f00a8 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
@@ -2066,6 +2066,7 @@ 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_2.2 ungetwc F
 GLIBC_2.2 versionsort64 F
 GLIBC_2.2 vfwprintf F
@@ -2558,6 +2559,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 57ce681936..6d24ce527d 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/librt.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/librt.abilist
@@ -1,5 +1,5 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
index 88dfdcf78e..4aba997bf0 100644
--- a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
@@ -2014,6 +2014,7 @@ 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
 GLIBC_2.18 timerfd_create F
 GLIBC_2.18 timerfd_gettime F
 GLIBC_2.18 timerfd_settime F
@@ -2529,6 +2530,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 8f8901c872..825b445ef7 100644
--- a/sysdeps/unix/sysv/linux/microblaze/be/librt.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/be/librt.abilist
@@ -1 +1 @@
-GLIBC_2.18 timer_settime F
+GLIBC_2.18 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
index 0b2dd534d4..d61b04b3d6 100644
--- a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
@@ -2014,6 +2014,7 @@ 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
 GLIBC_2.18 timerfd_create F
 GLIBC_2.18 timerfd_gettime F
 GLIBC_2.18 timerfd_settime F
@@ -2526,6 +2527,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 8f8901c872..825b445ef7 100644
--- a/sysdeps/unix/sysv/linux/microblaze/le/librt.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/le/librt.abilist
@@ -1 +1 @@
-GLIBC_2.18 timer_settime F
+GLIBC_2.18 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
index 75e7671aee..d214e0a486 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
@@ -1997,6 +1997,7 @@ 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_2.2 tmpfile F
 GLIBC_2.2 tmpfile64 F
 GLIBC_2.2 truncate64 F
@@ -2523,6 +2524,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 406120e1d8..a7f1518c0b 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/librt.abilist
@@ -1,4 +1,4 @@
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
index a1a934c115..c7c7064f67 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
@@ -1995,6 +1995,7 @@ 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_2.2 tmpfile F
 GLIBC_2.2 tmpfile64 F
 GLIBC_2.2 truncate64 F
@@ -2521,6 +2522,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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/librt.abilist b/sysdeps/unix/sysv/linux/mips/mips64/librt.abilist
index 406120e1d8..a7f1518c0b 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/librt.abilist
@@ -1,4 +1,4 @@
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
index 6e8f069a52..81665dd457 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
@@ -1993,6 +1993,7 @@ 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_2.2 tmpfile F
 GLIBC_2.2 tmpfile64 F
 GLIBC_2.2 truncate64 F
@@ -2529,6 +2530,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
index a6ad507d9e..a576318238 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
@@ -1989,6 +1989,7 @@ 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_2.2 tmpfile F
 GLIBC_2.2 tmpfile64 F
 GLIBC_2.2 truncate64 F
@@ -2523,6 +2524,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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/timer_settime.c b/sysdeps/unix/sysv/linux/mips/mips64/n64/timer_settime.c
new file mode 100644
index 0000000000..edc5f6367d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/timer_settime.c
@@ -0,0 +1,2 @@
+/* mips64/n64 does not use the wordsize-64 subdirectory.  */
+#include <sysdeps/unix/sysv/linux/wordsize-64/timer_settime.c>
diff --git a/sysdeps/unix/sysv/linux/nios2/libc.abilist b/sysdeps/unix/sysv/linux/nios2/libc.abilist
index 4ece38246a..1ecf6d5f0e 100644
--- a/sysdeps/unix/sysv/linux/nios2/libc.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/libc.abilist
@@ -2056,6 +2056,7 @@ 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
 GLIBC_2.21 timerfd_create F
 GLIBC_2.21 timerfd_gettime F
 GLIBC_2.21 timerfd_settime F
@@ -2568,6 +2569,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 d2298d7d44..834a4dcc7a 100644
--- a/sysdeps/unix/sysv/linux/nios2/librt.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/librt.abilist
@@ -1 +1 @@
-GLIBC_2.21 timer_settime F
+GLIBC_2.21 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
index 43fa1ce5a8..fc1df8e60b 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
@@ -2071,6 +2071,7 @@ 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_2.2 ungetwc F
 GLIBC_2.2 vfwprintf F
 GLIBC_2.2 vfwscanf F
@@ -2585,6 +2586,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 57ce681936..6d24ce527d 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/librt.abilist
@@ -1,5 +1,5 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
index 53a23d406a..3e18adf71c 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
@@ -2075,6 +2075,7 @@ 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_2.2 ungetwc F
 GLIBC_2.2 vfwprintf F
 GLIBC_2.2 vfwscanf F
@@ -2618,6 +2619,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 8607ac1012..0cdda49402 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions
@@ -25,10 +25,3 @@ libc {
     __ppc_get_timebase_freq;
   }
 }
-
-librt {
-  GLIBC_2.3.3 {
-    # Changed timer_t.
-    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 2c97b206fd..b2ab0f68a3 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
@@ -1890,6 +1890,7 @@ 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 times F
 GLIBC_2.3 timezone D 0x8
 GLIBC_2.3 tmpfile F
@@ -2170,6 +2171,7 @@ 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
 GLIBC_2.3.4 __chk_fail F
 GLIBC_2.3.4 __fprintf_chk F
 GLIBC_2.3.4 __gets_chk F
@@ -2435,6 +2437,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 bfaae8ac0e..506870e3fd 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/librt.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/librt.abilist
@@ -1,5 +1,5 @@
-GLIBC_2.3 timer_settime F
-GLIBC_2.3.3 timer_settime F
+GLIBC_2.3 __librt_version_placeholder F
+GLIBC_2.3.3 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
index c43d39328d..0e01094c4e 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
@@ -2098,6 +2098,7 @@ 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
 GLIBC_2.17 timerfd_create F
 GLIBC_2.17 timerfd_gettime F
 GLIBC_2.17 timerfd_settime F
@@ -2731,6 +2732,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 2cb1369ddb..88d0fc382f 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/librt.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/librt.abilist
@@ -1 +1 @@
-GLIBC_2.17 timer_settime F
+GLIBC_2.17 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_settime.c b/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_settime.c
deleted file mode 100644
index fa231149d5..0000000000
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_settime.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_settime.c>
diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
index 2a26211fda..78c47b3f4e 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
@@ -1954,6 +1954,7 @@ 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
 GLIBC_2.33 timerfd_create F
 GLIBC_2.33 timerfd_gettime F
 GLIBC_2.33 timerfd_settime F
@@ -2296,6 +2297,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 c59f14490e..b8af976642 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/librt.abilist
@@ -1 +1 @@
-GLIBC_2.33 timer_settime F
+GLIBC_2.33 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
index 73119b554b..7d93424d41 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
@@ -2020,6 +2020,7 @@ 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
 GLIBC_2.27 timerfd_create F
 GLIBC_2.27 timerfd_gettime F
 GLIBC_2.27 timerfd_settime F
@@ -2496,6 +2497,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 62ff23fd04..d7902a3ec7 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/librt.abilist
@@ -1 +1 @@
-GLIBC_2.27 timer_settime F
+GLIBC_2.27 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
index 16c3fc2e8c..552cc533eb 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
@@ -2069,6 +2069,7 @@ 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_2.2 ungetwc F
 GLIBC_2.2 versionsort64 F
 GLIBC_2.2 vfwprintf F
@@ -2583,6 +2584,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 57ce681936..6d24ce527d 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/librt.abilist
@@ -1,5 +1,5 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/Versions b/sysdeps/unix/sysv/linux/s390/s390-64/Versions
index 5c682764ad..83092db48e 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/Versions
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/Versions
@@ -5,10 +5,3 @@ libc {
     __frame_state_for; __register_frame_info_table;
   }
 }
-
-librt {
-  GLIBC_2.3.3 {
-    # Changed timer_t.
-    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 2a04b9d2d9..18c9a9db16 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
@@ -1765,6 +1765,7 @@ 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_2.2 times F
 GLIBC_2.2 timezone D 0x8
 GLIBC_2.2 tmpfile F
@@ -2216,6 +2217,7 @@ 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
 GLIBC_2.3.4 __chk_fail F
 GLIBC_2.3.4 __fprintf_chk F
 GLIBC_2.3.4 __gets_chk F
@@ -2472,6 +2474,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 f851eea81e..7dac2342ac 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/librt.abilist
@@ -1,5 +1,5 @@
-GLIBC_2.2 timer_settime F
-GLIBC_2.3.3 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
+GLIBC_2.3.3 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/timer_settime.c b/sysdeps/unix/sysv/linux/s390/s390-64/timer_settime.c
deleted file mode 100644
index fa231149d5..0000000000
--- a/sysdeps/unix/sysv/linux/s390/s390-64/timer_settime.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_settime.c>
diff --git a/sysdeps/unix/sysv/linux/sh/be/libc.abilist b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
index fa4a56bedc..5ebdf78494 100644
--- a/sysdeps/unix/sysv/linux/sh/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
@@ -1752,6 +1752,7 @@ 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_2.2 times F
 GLIBC_2.2 timezone D 0x4
 GLIBC_2.2 tmpfile F
@@ -2438,6 +2439,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 57ce681936..6d24ce527d 100644
--- a/sysdeps/unix/sysv/linux/sh/be/librt.abilist
+++ b/sysdeps/unix/sysv/linux/sh/be/librt.abilist
@@ -1,5 +1,5 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/sh/le/libc.abilist b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
index 928fb80b5d..6994abc772 100644
--- a/sysdeps/unix/sysv/linux/sh/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
@@ -1752,6 +1752,7 @@ 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_2.2 times F
 GLIBC_2.2 timezone D 0x4
 GLIBC_2.2 tmpfile F
@@ -2435,6 +2436,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 57ce681936..6d24ce527d 100644
--- a/sysdeps/unix/sysv/linux/sh/le/librt.abilist
+++ b/sysdeps/unix/sysv/linux/sh/le/librt.abilist
@@ -1,5 +1,5 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/sparc/librt-compat.c b/sysdeps/unix/sysv/linux/sparc/librt-compat.c
index a3862ba127..17a7895703 100644
--- a/sysdeps/unix/sysv/linux/sparc/librt-compat.c
+++ b/sysdeps/unix/sysv/linux/sparc/librt-compat.c
@@ -16,7 +16,7 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#include <rt/librt-compat.c>
+#include <sysdeps/unix/sysv/linux/librt-compat.c>
 
 #if SHLIB_COMPAT (librt, GLIBC_2_3, GLIBC_2_34)
 compat_symbol (librt, __librt_version_placeholder_1,
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
index 9fae206d63..f3b548fdcf 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
@@ -2064,6 +2064,7 @@ 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_2.2 ungetwc F
 GLIBC_2.2 vfwprintf F
 GLIBC_2.2 vfwscanf F
@@ -2578,6 +2579,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 e97dcb5e2a..7ff1ca83b1 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/librt.abilist
@@ -1,5 +1,5 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/Versions b/sysdeps/unix/sysv/linux/sparc/sparc64/Versions
index 5e8f59ceae..cc152489f6 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/Versions
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/Versions
@@ -10,10 +10,3 @@ libc {
     wordexp;
   }
 }
-
-librt {
-  GLIBC_2.3.3 {
-    # Changed timer_t.
-    timer_settime;
-  }
-}
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
index 765fed310f..4638f29455 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
@@ -1795,6 +1795,7 @@ 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_2.2 times F
 GLIBC_2.2 timezone D 0x8
 GLIBC_2.2 tmpfile F
@@ -2250,6 +2251,7 @@ 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
 GLIBC_2.3.4 __chk_fail F
 GLIBC_2.3.4 __fprintf_chk F
 GLIBC_2.3.4 __gets_chk F
@@ -2494,6 +2496,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 a2de1ecd94..f68e03dfde 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/librt.abilist
@@ -1,7 +1,7 @@
 GLIBC_2.1 __librt_version_placeholder F
-GLIBC_2.2 timer_settime F
+GLIBC_2.2 __librt_version_placeholder F
 GLIBC_2.3 __librt_version_placeholder F
-GLIBC_2.3.3 timer_settime F
+GLIBC_2.3.3 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/timer_settime.c b/sysdeps/unix/sysv/linux/sparc/sparc64/timer_settime.c
deleted file mode 100644
index fa231149d5..0000000000
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/timer_settime.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_settime.c>
diff --git a/sysdeps/unix/sysv/linux/timer_settime.c b/sysdeps/unix/sysv/linux/timer_settime.c
index f8bb16a4c2..3e9a7220f2 100644
--- a/sysdeps/unix/sysv/linux/timer_settime.c
+++ b/sysdeps/unix/sysv/linux/timer_settime.c
@@ -22,6 +22,11 @@
 #include <sysdep.h>
 #include <kernel-features.h>
 #include "kernel-posix-timers.h"
+#include <shlib-compat.h>
+
+#if __WORDSIZE != 32
+# error "wordsize-64 has its own implementation"
+#endif
 
 int
 __timer_settime64 (timer_t timerid, int flags,
@@ -67,8 +72,14 @@ __timer_settime64 (timer_t timerid, int flags,
 #endif
 }
 
-#if __TIMESIZE != 64
-librt_hidden_def (__timer_settime64)
+#if __TIMESIZE == 64
+versioned_symbol (libc, __timer_settime64, timer_settime, GLIBC_2_34);
+# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_34)
+compat_symbol (librt, __timer_settime64, timer_settime, GLIBC_2_2);
+# endif
+
+#else /* __TIMESIZE != 64 */
+libc_hidden_def (__timer_settime64)
 
 int
 __timer_settime (timer_t timerid, int flags, const struct itimerspec *value,
@@ -89,5 +100,9 @@ __timer_settime (timer_t timerid, int flags, const struct itimerspec *value,
 
   return retval;
 }
-#endif
-weak_alias (__timer_settime, timer_settime)
+versioned_symbol (libc, __timer_settime, timer_settime, GLIBC_2_34);
+
+# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_34)
+compat_symbol (librt, __timer_settime, timer_settime, GLIBC_2_2);
+# endif
+#endif /* __TIMESIZE != 64 */
diff --git a/sysdeps/unix/sysv/linux/wordsize-64/Versions b/sysdeps/unix/sysv/linux/wordsize-64/Versions
index f615b69848..d82bdf2439 100644
--- a/sysdeps/unix/sysv/linux/wordsize-64/Versions
+++ b/sysdeps/unix/sysv/linux/wordsize-64/Versions
@@ -5,8 +5,17 @@ libc {
     timer_delete;
     timer_getoverrun;
     timer_gettime;
+    timer_settime;
   }
   GLIBC_2.10 {
     fallocate64;
   }
 }
+librt {
+  GLIBC_2.3.3 {
+    # Leftover from the int -> timer_t transition.  For ABIs that came later
+    # and do not have the symbol version, this version node is merged with
+    # the baseline version.
+    __librt_version_placeholder;
+  }
+}
diff --git a/sysdeps/unix/sysv/linux/x86_64/timer_settime.c b/sysdeps/unix/sysv/linux/wordsize-64/timer_settime.c
similarity index 71%
rename from sysdeps/unix/sysv/linux/x86_64/timer_settime.c
rename to sysdeps/unix/sysv/linux/wordsize-64/timer_settime.c
index 2dae16f478..3302f8f87d 100644
--- a/sysdeps/unix/sysv/linux/x86_64/timer_settime.c
+++ b/sysdeps/unix/sysv/linux/wordsize-64/timer_settime.c
@@ -19,20 +19,27 @@
 #include <shlib-compat.h>
 #include <sysdep.h>
 #include "kernel-posix-timers.h"
-#include "compat-timer.h"
+
+extern __typeof (timer_settime) __timer_settime_new;
+libc_hidden_proto (__timer_settime_new)
 
 int
-__timer_settime_new (timer_t timerid, int flags, const struct itimerspec *value,
-                     struct itimerspec *ovalue)
+___timer_settime_new (timer_t timerid, int flags,
+		      const struct itimerspec *value,
+		      struct itimerspec *ovalue)
 {
   kernel_timer_t ktimerid = timerid_to_kernel_timer (timerid);
 
   return INLINE_SYSCALL_CALL (timer_settime, ktimerid, flags, value, ovalue);
 }
-versioned_symbol (librt, __timer_settime_new, timer_settime, GLIBC_2_3_3);
+versioned_symbol (libc, ___timer_settime_new, timer_settime, GLIBC_2_34);
+libc_hidden_ver (___timer_settime_new, __timer_settime_new)
 
+#if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_3, GLIBC_2_34)
+compat_symbol (librt, ___timer_settime_new, timer_settime, GLIBC_2_3_3);
+#endif
 
-#if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
+#if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
 int
 __timer_settime_old (int timerid, int flags, const struct itimerspec *value,
 		     struct itimerspec *ovalue)
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
index ee6ede5ec0..29f9c73901 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
@@ -1764,6 +1764,7 @@ 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_2.2.5 times F
 GLIBC_2.2.5 timezone D 0x8
 GLIBC_2.2.5 tmpfile F
@@ -2204,6 +2205,7 @@ 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
 GLIBC_2.3.4 __chk_fail F
 GLIBC_2.3.4 __fprintf_chk F
 GLIBC_2.3.4 __gets_chk F
@@ -2450,6 +2452,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 913835d267..752a38a6df 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/librt.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/librt.abilist
@@ -1,5 +1,5 @@
-GLIBC_2.2.5 timer_settime F
-GLIBC_2.3.3 timer_settime F
+GLIBC_2.2.5 __librt_version_placeholder F
+GLIBC_2.3.3 __librt_version_placeholder F
 GLIBC_2.3.4 __librt_version_placeholder F
 GLIBC_2.4 __librt_version_placeholder F
 GLIBC_2.7 __librt_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/x86_64/Versions b/sysdeps/unix/sysv/linux/x86_64/Versions
index 8deeb8908a..fd1b3cc296 100644
--- a/sysdeps/unix/sysv/linux/x86_64/Versions
+++ b/sysdeps/unix/sysv/linux/x86_64/Versions
@@ -7,10 +7,3 @@ libc {
     modify_ldt;
   }
 }
-
-librt {
-  GLIBC_2.3.3 {
-    # Changed timer_t.
-    timer_settime;
-  }
-}
diff --git a/sysdeps/unix/sysv/linux/x86_64/compat-timer.h b/sysdeps/unix/sysv/linux/x86_64/compat-timer.h
deleted file mode 100644
index c61eb40070..0000000000
--- a/sysdeps/unix/sysv/linux/x86_64/compat-timer.h
+++ /dev/null
@@ -1,37 +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 <signal.h>
-#include <time.h>
-#include <sys/types.h>
-
-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,
-				const struct itimerspec *value,
-				struct itimerspec *ovalue);
-
-
-extern int __timer_create_old (clockid_t clock_id, struct sigevent *evp,
-			       int *timerid);
-extern int __timer_delete_old (int timerid);
-extern int __timer_getoverrun_old (int timerid);
-extern int __timer_gettime_old (int timerid, struct itimerspec *value);
-extern int __timer_settime_old (int timerid, int flags,
-				const struct itimerspec *value,
-				struct itimerspec *ovalue);
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
index a37522d210..c5c0a2a843 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
@@ -2015,6 +2015,7 @@ 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
 GLIBC_2.16 timerfd_create F
 GLIBC_2.16 timerfd_gettime F
 GLIBC_2.16 timerfd_settime F
@@ -2550,6 +2551,7 @@ GLIBC_2.34 timer_create F
 GLIBC_2.34 timer_delete F
 GLIBC_2.34 timer_getoverrun F
 GLIBC_2.34 timer_gettime F
+GLIBC_2.34 timer_settime 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 50f2032de7..a39d5383e4 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/librt.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/librt.abilist
@@ -1 +1 @@
-GLIBC_2.16 timer_settime F
+GLIBC_2.16 __librt_version_placeholder F


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2021-06-03 20:28 [glibc/fw/librt] Linux: Move timer_settime from librt to libc Florian Weimer

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