From: Roland McGrath <roland@hack.frob.com>
Date: Wed, 24 Oct 2012 21:50:46 +0000 (-0700)
Subject: BZ#14743: Move clock_* symbols from librt to libc.
X-Git-Tag: glibc-2.17~355
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6e6249d0b461b952d0f544792372663feb6d792a;p=thirdparty%2Fglibc.git

BZ#14743: Move clock_* symbols from librt to libc.
---

diff --git a/ChangeLog b/ChangeLog
index 3c9a31e2ebb..28f485a06a7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,61 @@
+2012-10-24  Roland McGrath  <roland@hack.frob.com>
+
+	* nscd/Makefile ($(objpfx)nscd): Remove librt dependency.
+	* posix/Makefile ($(objpfx)tst-regex, $(objpfx)tst-regex2):
+	Targets	removed.
+
+	[BZ #14743]
+	* include/time.h: Remove librt_hidden_proto (clock_gettime).
+	Declare __clock_getres, __clock_gettime, __clock_settime,
+	__clock_nanosleep, and __clock_getcpuclockid.
+	* rt/clock_gettime.c: Define __clock_gettime as an alias.
+	Remove librt_hidden_def (clock_gettime).
+	* sysdeps/unix/clock_gettime.c: Likewise.
+	* rt/clock_getcpuclockid.c: Define __clock_getcpuclockid as an alias.
+	* sysdeps/unix/sysv/linux/clock_getcpuclockid.c: Likewise.
+	* rt/clock_getres.c: Define __clock_getres as an alias.
+	* sysdeps/posix/clock_getres.c: Likewise.
+	* rt/clock_settime.c: Define __clock_settime as an alias.
+	* sysdeps/unix/clock_settime.c: Likewise.
+	* rt/clock_nanosleep.c: Define __clock_nanosleep as an alias.
+	* sysdeps/unix/clock_nanosleep.c: Likewise.
+	* sysdeps/unix/sysv/linux/clock_nanosleep.c: Likewise.
+	* rt/clock-compat.c: New file.
+	* rt/Makefile (librt-routines): Add clock-compat and move
+	$(clock-routines) to ...
+	(routines): ... here, new variable.
+	* sysdeps/unix/sysv/linux/powerpc/Makefile (sysdep_routines):
+	Don't add get_clockfreq here.
+	* rt/Versions (libc: GLIBC_2.17): New version set.
+	Add clock_* symbols here.
+	(libc: GLIBC_PRIVATE): New version set.  Add __clock_* symbols here.
+	* sysdeps/unix/sysv/linux/i386/nptl/libc.abilist
+	(GLIBC_2.17): Add clock_* symbols.
+	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libc.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libc.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/sh/nptl/libc.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libc.abilist:
+	Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libc.abilist:
+	Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/64/nptl/libc.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/x32/nptl/libc.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libc.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libc.abilist: Likewise.
+	* NEWS: Mention the move.
+
+	* sysdeps/unix/sysv/linux/i386/get_clockfreq.c (__get_clockfreq):
+	Use __open, __read, __close rather than their public counterparts.
+	* sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
+	(__get_clockfreq_via_cpuinfo): Likewise.
+	(__get_clockfreq_via_proc_openprom): Likewise, and __getdirentries.
+	(__get_clockfreq_via_dev_openprom): Likewise, and __ioctl.
+
+	* config.h.in (HAVE_IFUNC): New #undef.
+	* configure.in: Define it if libc_cv_ld_gnu_indirect_function
+	was successful.
+	* configure: Regenerated.
+
 2012-10-24  Mike Frysinger  <vapier@gentoo.org>
 
 	* configure.in: Move READELF check to start of file.
diff --git a/NEWS b/NEWS
index 0e10112a357..a1cc1287fde 100644
--- a/NEWS
+++ b/NEWS
@@ -16,7 +16,8 @@ Version 2.17
   14328, 14331, 14336, 14337, 14347, 14349, 14376, 14417, 14459, 14476,
   14477, 14505, 14510, 14516, 14518, 14519, 14530, 14532, 14538, 14543,
   14544, 14545, 14557, 14562, 14568, 14576, 14579, 14583, 14587, 14602,
-  14621, 14638, 14645, 14648, 14652, 14660, 14661, 14683, 14694, 14716.
+  14621, 14638, 14645, 14648, 14652, 14660, 14661, 14683, 14694, 14716,
+  14743.
 
 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
   Optimized versions of memcpy, memset, and memcmp added for System z10 and
@@ -54,6 +55,13 @@ Version 2.17
   enabled, and fail on encrypted strings using the MD5 or DES algorithm
   when the mode is enabled.
 
+* The `clock_*' suite of functions (declared in <time.h>) is now available
+  directly in the main C library.  Previously it was necessary to link with
+  -lrt to use these functions.  This change has the effect that a
+  single-threaded program that uses a function such as `clock_gettime' (and
+  is not linked with -lrt) will no longer implicitly load the pthreads
+  library at runtime and so will not suffer the overheads associated with
+  multi-thread support in other code such as the C++ runtime library.
 
 Version 2.16
 
@@ -81,7 +89,7 @@ Version 2.16
   14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064, 14075,
   14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123, 14134,
   14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273, 14277,
-  14278,
+  14278.
 
 * Support for the x32 ABI on x86-64 added.  The x32 target is selected by
   configuring glibc with:
diff --git a/config.h.in b/config.h.in
index 5f9f3c39d5a..653df54e563 100644
--- a/config.h.in
+++ b/config.h.in
@@ -180,6 +180,9 @@
 /* Define if the dynamic linker should consult an ld.so.cache file.  */
 #undef USE_LDCONFIG
 
+/* Define if STT_GNU_IFUNC support actually works.  */
+#undef HAVE_IFUNC
+
 /*
  */
 
diff --git a/configure b/configure
index 8cd403bf4e7..35b06c1473e 100755
--- a/configure
+++ b/configure
@@ -7456,6 +7456,13 @@ if test x$libc_cv_gcc_unwind_find_fde = xyes; then
 fi
 
 
+# A sysdeps configure fragment can reset this if IFUNC is not actually
+# usable even though the assembler knows how to generate the symbol type.
+if test x"$libc_cv_ld_gnu_indirect_function" = xyes; then
+  $as_echo "#define HAVE_IFUNC 1" >>confdefs.h
+
+fi
+
 # This is far from the AC_ARG_ENABLE that sets it so that a sysdeps
 # configure fragment can override the value to prevent this AC_DEFINE.
 
diff --git a/configure.in b/configure.in
index 4f7bc098429..928b7b62a95 100644
--- a/configure.in
+++ b/configure.in
@@ -2123,6 +2123,12 @@ if test x$libc_cv_gcc_unwind_find_fde = xyes; then
 fi
 AC_SUBST(libc_cv_gcc_unwind_find_fde)
 
+# A sysdeps configure fragment can reset this if IFUNC is not actually
+# usable even though the assembler knows how to generate the symbol type.
+if test x"$libc_cv_ld_gnu_indirect_function" = xyes; then
+  AC_DEFINE(HAVE_IFUNC)
+fi
+
 # This is far from the AC_ARG_ENABLE that sets it so that a sysdeps
 # configure fragment can override the value to prevent this AC_DEFINE.
 AC_SUBST(use_nscd)
diff --git a/include/time.h b/include/time.h
index f056542a109..9be15b97398 100644
--- a/include/time.h
+++ b/include/time.h
@@ -19,7 +19,11 @@ libc_hidden_proto (localtime)
 libc_hidden_proto (strftime)
 libc_hidden_proto (strptime)
 
-librt_hidden_proto (clock_gettime)
+extern __typeof (clock_getres) __clock_getres;
+extern __typeof (clock_gettime) __clock_gettime;
+extern __typeof (clock_settime) __clock_settime;
+extern __typeof (clock_nanosleep) __clock_nanosleep;
+extern __typeof (clock_getcpuclockid) __clock_getcpuclockid;
 
 /* Now define the internal interfaces.  */
 struct tm;
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 5a3ab06604d..d0b5d6c7b8b 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,10 @@
+2012-10-24  Roland McGrath  <roland@hack.frob.com>
+
+	* Makefile ($(objpfx)tst-cond11, $(objpfx)tst-cond19): Targets removed.
+	($(objpfx)tst-sem5, $(objpfx)tst-cancel18): Likewise.
+	((objpfx)tst-cancelx18, $(objpfx)tst-clock2): Likewise.
+	($(objpfx)tst-rwlock14): Likewise.
+
 2012-10-24  Joseph Myers  <joseph@codesourcery.com>
 
 	* Makefile (tests): Remove tst-oddstacklimit.
diff --git a/nptl/Makefile b/nptl/Makefile
index 21a876652e1..7387a640b99 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -484,31 +484,18 @@ $(objpfx)tst-dlsym1: $(libdl) $(shared-thread-library)
 $(objpfx)tst-fini1: $(shared-thread-library) $(objpfx)tst-fini1mod.so
 
 ifeq (yes,$(build-shared))
-$(objpfx)tst-cond11: $(common-objpfx)rt/librt.so
-$(objpfx)tst-cond19: $(common-objpfx)rt/librt.so
-$(objpfx)tst-sem5: $(common-objpfx)rt/librt.so
-$(objpfx)tst-cancel17: $(common-objpfx)rt/librt.so
-$(objpfx)tst-cancelx17: $(common-objpfx)rt/librt.so
-$(objpfx)tst-cancel18: $(common-objpfx)rt/librt.so
-$(objpfx)tst-cancelx18: $(common-objpfx)rt/librt.so
-$(objpfx)tst-clock2: $(common-objpfx)rt/librt.so
-$(objpfx)tst-rwlock14: $(common-objpfx)rt/librt.so
+librt = $(common-objpfx)rt/librt.so
+else
+librt = $(common-objpfx)rt/librt.a
+endif
+
+$(objpfx)tst-cancel17: $(librt)
+$(objpfx)tst-cancelx17: $(librt)
 $(objpfx)tst-_res1mod2.so: $(objpfx)tst-_res1mod1.so
 LDFLAGS-tst-_res1mod1.so = -Wl,-soname,tst-_res1mod1.so
 LDFLAGS-tst-_res1mod2.so = -Wl,-soname,tst-_res1mod2.so
 $(objpfx)tst-_res1: $(objpfx)tst-_res1mod1.so $(objpfx)tst-_res1mod2.so \
 		    $(shared-thread-library)
-else
-$(objpfx)tst-cond11: $(common-objpfx)rt/librt.a
-$(objpfx)tst-cond19: $(common-objpfx)rt/librt.a
-$(objpfx)tst-sem5: $(common-objpfx)rt/librt.a
-$(objpfx)tst-cancel17: $(common-objpfx)rt/librt.a
-$(objpfx)tst-cancelx17: $(common-objpfx)rt/librt.a
-$(objpfx)tst-cancel18: $(common-objpfx)rt/librt.a
-$(objpfx)tst-cancelx18: $(common-objpfx)rt/librt.a
-$(objpfx)tst-clock2: $(common-objpfx)rt/librt.a
-$(objpfx)tst-rwlock14: $(common-objpfx)rt/librt.a
-endif
 
 LDLIBS-tst-cancel24 = $(no-as-needed) -lstdc++
 LDLIBS-tst-cancel24-static = $(LDLIBS-tst-cancel24)
diff --git a/nscd/Makefile b/nscd/Makefile
index de754d2a43a..0f8efcfb7c8 100644
--- a/nscd/Makefile
+++ b/nscd/Makefile
@@ -101,9 +101,7 @@ include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
 $(objpfx)nscd: $(nscd-modules:%=$(objpfx)%.o)
 
 ifeq ($(build-shared),yes)
-$(objpfx)nscd: $(common-objpfx)rt/librt.so $(shared-thread-library) \
-	       $(common-objpfx)nis/libnsl.so
+$(objpfx)nscd: $(shared-thread-library) $(common-objpfx)nis/libnsl.so
 else
-$(objpfx)nscd: $(common-objpfx)rt/librt.a $(static-thread-library) \
-	       $(common-objpfx)nis/libnsl.a
+$(objpfx)nscd: $(static-thread-library) $(common-objpfx)nis/libnsl.a
 endif
diff --git a/ports/ChangeLog.alpha b/ports/ChangeLog.alpha
index 8cddb777eb5..8ddde9f25f0 100644
--- a/ports/ChangeLog.alpha
+++ b/ports/ChangeLog.alpha
@@ -1,3 +1,8 @@
+2012-10-19  Roland McGrath  <roland@hack.frob.com>
+
+	* sysdeps/unix/sysv/linux/alpha/nptl/libc.abilist
+	(GLIBC_2.17): Add clock_* symbols.
+
 2012-10-09  Roland McGrath  <roland@hack.frob.com>
 
 	* sysdeps/alpha/configure: Regenerated.
diff --git a/ports/ChangeLog.arm b/ports/ChangeLog.arm
index 6fcfc7ada8e..0b76f5ed22d 100644
--- a/ports/ChangeLog.arm
+++ b/ports/ChangeLog.arm
@@ -1,3 +1,8 @@
+2012-10-22  Roland McGrath  <roland@hack.frob.com>
+
+	* sysdeps/unix/sysv/linux/arm/nptl/libc.abilist
+	(GLIBC_2.17): Add clock_* symbols.
+
 2012-10-22  Andreas Jaeger  <aj@suse.de>
 
 	* ports/sysdeps/unix/sysv/linux/arm/bits/fcntl.h (__O_LARGEFILE):
diff --git a/ports/ChangeLog.ia64 b/ports/ChangeLog.ia64
index 641033b2980..8d8f4dcd7c0 100644
--- a/ports/ChangeLog.ia64
+++ b/ports/ChangeLog.ia64
@@ -1,3 +1,11 @@
+2012-10-19  Roland McGrath  <roland@hack.frob.com>
+
+	* sysdeps/unix/sysv/linux/ia64/nptl/libc.abilist
+	(GLIBC_2.17): Add clock_* symbols.
+
+	* sysdeps/unix/sysv/linux/ia64/get_clockfreq.c (__get_clockfreq):
+	Use __open, __read, __close rather than their public counterparts.
+
 2012-10-09  Roland McGrath  <roland@hack.frob.com>
 
 	* sysdeps/ia64/configure: Regenerated.
diff --git a/ports/ChangeLog.m68k b/ports/ChangeLog.m68k
index e9b4f368906..dda8cf7ee87 100644
--- a/ports/ChangeLog.m68k
+++ b/ports/ChangeLog.m68k
@@ -1,3 +1,9 @@
+2012-10-19  Roland McGrath  <roland@hack.frob.com>
+
+	* sysdeps/unix/sysv/linux/m68k/coldfire/nptl/libc.abilist:
+	(GLIBC_2.17): Add clock_* symbols.
+	* sysdeps/unix/sysv/linux/m68k/m680x0/nptl/libc.abilist: Likewise.
+
 2012-10-02  Siddhesh Poyarekar  <siddhesh@redhat.com>
 
 	* sysdeps/unix/sysv/linux/m68k/nptl/lowlevellock.h: Fix clone
diff --git a/ports/ChangeLog.mips b/ports/ChangeLog.mips
index 12af7965bb7..a6aecad24e3 100644
--- a/ports/ChangeLog.mips
+++ b/ports/ChangeLog.mips
@@ -1,3 +1,9 @@
+2012-10-19  Roland McGrath  <roland@hack.frob.com>
+
+	* sysdeps/unix/sysv/linux/mips/mips32/nptl/libc.abilist
+	(GLIBC_2.17): Add clock_* symbols.
+	* sysdeps/unix/sysv/linux/mips/mips64/n64/nptl/libc.abilist: Likewise.
+
 2012-10-24  Andreas Jaeger  <aj@suse.de>
 
 	* sysdeps/unix/sysv/linux/mips/bits/fcntl.h: Remove all
diff --git a/ports/ChangeLog.powerpc b/ports/ChangeLog.powerpc
index aa559560216..642e7165c6c 100644
--- a/ports/ChangeLog.powerpc
+++ b/ports/ChangeLog.powerpc
@@ -1,3 +1,8 @@
+2012-10-19  Roland McGrath  <roland@hack.frob.com>
+
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libc.abilist
+	(GLIBC_2.17): Add clock_* symbols.
+
 2012-09-26  Joseph Myers  <joseph@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libc.abilist:
@@ -180,7 +185,7 @@
 	* sysdeps/powerpc/nofpu/Makefile
 	[subdirs-soft-fp] (sysdep_routines): Remove gcc-quad-routines.
 	[subdirs-math] (CPPFLAGS): Add -I../soft-fp.
-	[subdirs-math] (CFLAGS-e_powl.c): Add -fno-builtin-fabsl. 
+	[subdirs-math] (CFLAGS-e_powl.c): Add -fno-builtin-fabsl.
 	[subdirs-math] (CFLAGS-s_ccoshl.c): Likewise.
 	[subdirs-math] (CFLAGS-s_csinhl.c): Likewise.
 	[subdirs-math] (CFLAGS-s_clogl.c): Likewise.
diff --git a/ports/ChangeLog.tile b/ports/ChangeLog.tile
index dfe5e9c60fa..93c99ac695b 100644
--- a/ports/ChangeLog.tile
+++ b/ports/ChangeLog.tile
@@ -1,3 +1,12 @@
+2012-10-19  Roland McGrath  <roland@hack.frob.com>
+
+	* sysdeps/unix/sysv/linux/tile/tilepro/nptl/libc.abilist:
+	(GLIBC_2.17): Add clock_* symbols.
+	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libc.abilist:
+	Likewise.
+	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/nptl/libc.abilist:
+	Likewise.
+
 2012-10-11  Chris Metcalf  <cmetcalf@tilera.com>
 
 	* sysdeps/unix/sysv/linux/tile/tilegx/sched_getcpu.c: New file.
diff --git a/ports/sysdeps/unix/sysv/linux/alpha/nptl/libc.abilist b/ports/sysdeps/unix/sysv/linux/alpha/nptl/libc.abilist
index f8a3295add3..1d0cc7ec317 100644
--- a/ports/sysdeps/unix/sysv/linux/alpha/nptl/libc.abilist
+++ b/ports/sysdeps/unix/sysv/linux/alpha/nptl/libc.abilist
@@ -1813,6 +1813,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.2
  GLIBC_2.2 A
diff --git a/ports/sysdeps/unix/sysv/linux/arm/nptl/libc.abilist b/ports/sysdeps/unix/sysv/linux/arm/nptl/libc.abilist
index 5523fdd2a3d..ceab6b2cd9d 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/nptl/libc.abilist
+++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/libc.abilist
@@ -80,6 +80,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.4
  GLIBC_2.4 A
diff --git a/ports/sysdeps/unix/sysv/linux/ia64/get_clockfreq.c b/ports/sysdeps/unix/sysv/linux/ia64/get_clockfreq.c
index 4c1777a5165..cb8025ebe04 100644
--- a/ports/sysdeps/unix/sysv/linux/ia64/get_clockfreq.c
+++ b/ports/sysdeps/unix/sysv/linux/ia64/get_clockfreq.c
@@ -1,5 +1,5 @@
 /* Get frequency of the system processor.  IA-64/Linux version.
-   Copyright (C) 2001 Free Software Foundation, Inc.
+   Copyright (C) 2001-2012 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
@@ -37,7 +37,7 @@ __get_clockfreq (void)
   if (result != 0)
     return result;
 
-  fd = open ("/proc/cpuinfo", O_RDONLY);
+  fd = __open ("/proc/cpuinfo", O_RDONLY);
   if (__builtin_expect (fd != -1, 1))
     {
       /* XXX AFAIK the /proc filesystem can generate "files" only up
@@ -45,7 +45,7 @@ __get_clockfreq (void)
       char buf[4096];
       ssize_t n;
 
-      n = read (fd, buf, sizeof buf);
+      n = __read (fd, buf, sizeof buf);
       if (__builtin_expect (n, 1) > 0)
 	{
 	  char *mhz = memmem (buf, n, "itc MHz", 7);
@@ -81,7 +81,7 @@ __get_clockfreq (void)
 	    }
 	}
 
-      close (fd);
+      __close (fd);
     }
 
   return result;
diff --git a/ports/sysdeps/unix/sysv/linux/ia64/nptl/libc.abilist b/ports/sysdeps/unix/sysv/linux/ia64/nptl/libc.abilist
index b73f5ca8f74..b3510fe2a28 100644
--- a/ports/sysdeps/unix/sysv/linux/ia64/nptl/libc.abilist
+++ b/ports/sysdeps/unix/sysv/linux/ia64/nptl/libc.abilist
@@ -80,6 +80,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.2
  GLIBC_2.2 A
diff --git a/ports/sysdeps/unix/sysv/linux/m68k/coldfire/nptl/libc.abilist b/ports/sysdeps/unix/sysv/linux/m68k/coldfire/nptl/libc.abilist
index 9a924571e88..3c40379aacd 100644
--- a/ports/sysdeps/unix/sysv/linux/m68k/coldfire/nptl/libc.abilist
+++ b/ports/sysdeps/unix/sysv/linux/m68k/coldfire/nptl/libc.abilist
@@ -81,6 +81,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.4
  GLIBC_2.4 A
diff --git a/ports/sysdeps/unix/sysv/linux/m68k/m680x0/nptl/libc.abilist b/ports/sysdeps/unix/sysv/linux/m68k/m680x0/nptl/libc.abilist
index fbcd20897bb..f998b1b2764 100644
--- a/ports/sysdeps/unix/sysv/linux/m68k/m680x0/nptl/libc.abilist
+++ b/ports/sysdeps/unix/sysv/linux/m68k/m680x0/nptl/libc.abilist
@@ -1769,6 +1769,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.2
  GLIBC_2.2 A
diff --git a/ports/sysdeps/unix/sysv/linux/mips/mips32/nptl/libc.abilist b/ports/sysdeps/unix/sysv/linux/mips/mips32/nptl/libc.abilist
index 54e8d1a94e9..73788692361 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/mips32/nptl/libc.abilist
+++ b/ports/sysdeps/unix/sysv/linux/mips/mips32/nptl/libc.abilist
@@ -2244,4 +2244,9 @@ _gp_disp
  _gp_disp A
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
diff --git a/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/nptl/libc.abilist b/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/nptl/libc.abilist
index 0e21194ac12..22b3068d8f0 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/nptl/libc.abilist
+++ b/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/nptl/libc.abilist
@@ -1390,6 +1390,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.2
  GLIBC_2.2 A
diff --git a/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libc.abilist b/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libc.abilist
index 481162e99f7..f2682b39c0f 100644
--- a/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libc.abilist
+++ b/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libc.abilist
@@ -1774,6 +1774,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
  __ppc_get_timebase_freq F
 GLIBC_2.2
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/nptl/libc.abilist b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/nptl/libc.abilist
index 48f0c69eb87..d79b2df55d4 100644
--- a/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/nptl/libc.abilist
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/nptl/libc.abilist
@@ -2082,4 +2082,9 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libc.abilist b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libc.abilist
index 3aa70a1004e..f6174056752 100644
--- a/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libc.abilist
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libc.abilist
@@ -2082,4 +2082,9 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilepro/nptl/libc.abilist b/ports/sysdeps/unix/sysv/linux/tile/tilepro/nptl/libc.abilist
index 48f0c69eb87..d79b2df55d4 100644
--- a/ports/sysdeps/unix/sysv/linux/tile/tilepro/nptl/libc.abilist
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilepro/nptl/libc.abilist
@@ -2082,4 +2082,9 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
diff --git a/posix/Makefile b/posix/Makefile
index 86e6c6bedeb..add2ca5be6f 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -277,14 +277,6 @@ $(objpfx)tst-boost-mem: $(objpfx)tst-boost.out
 $(objpfx)tst-getconf.out: tst-getconf.sh $(objpfx)getconf
 	$(SHELL) $< $(common-objpfx) '$(built-program-cmd)'
 
-ifeq (yes,$(build-shared))
-$(objpfx)tst-regex: $(common-objpfx)rt/librt.so
-$(objpfx)tst-regex2: $(common-objpfx)rt/librt.so
-else
-$(objpfx)tst-regex: $(common-objpfx)rt/librt.a
-$(objpfx)tst-regex2: $(common-objpfx)rt/librt.a
-endif
-
 $(objpfx)bug-ga2-mem: $(objpfx)bug-ga2.out
 	$(common-objpfx)malloc/mtrace $(objpfx)bug-ga2.mtrace > $@
 
diff --git a/rt/Makefile b/rt/Makefile
index 26d4ffaaf60..4805f8b5b78 100644
--- a/rt/Makefile
+++ b/rt/Makefile
@@ -36,9 +36,12 @@ mq-routines    := mq_open mq_close mq_unlink mq_getattr mq_setattr	\
 		  mq_notify mq_send mq_receive mq_timedsend		\
 		  mq_timedreceive
 
+routines = $(clock-routines)
+
 librt-routines = $(aio-routines) \
-		 $(clock-routines) $(timer-routines) \
-		 $(shm-routines) $(mq-routines)
+		 $(timer-routines) \
+		 $(shm-routines) $(mq-routines) \
+		 clock-compat
 
 tests := tst-shm tst-clock tst-clock_nanosleep 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 2921c9c8ab5..91e3fd2a204 100644
--- a/rt/Versions
+++ b/rt/Versions
@@ -1,3 +1,15 @@
+libc {
+  GLIBC_2.17 {
+    # c*
+    clock_getres; clock_gettime; clock_settime; clock_getcpuclockid;
+    clock_nanosleep;
+  }
+  GLIBC_PRIVATE {
+    __clock_getres; __clock_gettime; __clock_settime; __clock_getcpuclockid;
+    __clock_nanosleep;
+  }
+}
+
 librt {
   GLIBC_2.1 {
     # AIO functions.
@@ -6,7 +18,7 @@ librt {
     aio_suspend64; aio_write; aio_write64; lio_listio; lio_listio64;
   }
   GLIBC_2.2 {
-    # c*
+    # These have moved to libc and are still here only for compatibility.
     clock_getres; clock_gettime; clock_settime; clock_getcpuclockid;
     clock_nanosleep;
 
diff --git a/rt/clock-compat.c b/rt/clock-compat.c
new file mode 100644
index 00000000000..16e41092108
--- /dev/null
+++ b/rt/clock-compat.c
@@ -0,0 +1,65 @@
+/* ABI compatibility redirects for clock_* symbols in librt.
+   Copyright (C) 2012 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <shlib-compat.h>
+
+/* The clock_* symbols were originally defined in librt and so
+   are part of its ABI.  As of 2.17, they have moved to libc.
+   So we supply definitions for librt that just redirect to
+   their libc counterparts.  */
+
+#if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_17)
+
+#include <time.h>
+
+#ifdef HAVE_IFUNC
+# define COMPAT_REDIRECT(name, proto, arglist)				      \
+  __typeof (name) *name##_ifunc (void) asm (#name);			      \
+  __typeof (name) *name##_ifunc (void)					      \
+  {									      \
+    return &__##name;							      \
+  }									      \
+  asm (".type " #name ", %gnu_indirect_function");
+#else
+# define COMPAT_REDIRECT(name, proto, arglist)				      \
+  int									      \
+  name proto								      \
+  {									      \
+    return __##name arglist;						      \
+  }
+#endif
+
+COMPAT_REDIRECT (clock_getres,
+                 (clockid_t clock_id, struct timespec *res),
+                 (clock_id, res))
+COMPAT_REDIRECT (clock_gettime,
+                 (clockid_t clock_id, struct timespec *tp),
+                 (clock_id, tp))
+COMPAT_REDIRECT (clock_settime,
+                 (clockid_t clock_id, const struct timespec *tp),
+                 (clock_id, tp))
+COMPAT_REDIRECT (clock_getcpuclockid,
+                 (pid_t pid, clockid_t *clock_id),
+                 (pid, clock_id))
+COMPAT_REDIRECT (clock_nanosleep,
+                 (clockid_t clock_id, int flags,
+                  const struct timespec *req,
+                  struct timespec *rem),
+                 (clock_id, flags, req, rem))
+
+#endif
diff --git a/rt/clock_getcpuclockid.c b/rt/clock_getcpuclockid.c
index 08972f54fd2..4bead25685b 100644
--- a/rt/clock_getcpuclockid.c
+++ b/rt/clock_getcpuclockid.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+/* Get a clockid_t for the process CPU clock of a given process.  Generic.
+   Copyright (C) 2000-2012 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
@@ -36,3 +37,4 @@ clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
   return ENOENT;
 #endif
 }
+strong_alias (clock_getcpuclockid, __clock_getcpuclockid)
diff --git a/rt/clock_getres.c b/rt/clock_getres.c
index 576c9bf7386..162c8a56971 100644
--- a/rt/clock_getres.c
+++ b/rt/clock_getres.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1999 Free Software Foundation, Inc.
+/* Get the resolution of a clock.  Stub version.
+   Copyright (C) 1999-2012 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
@@ -25,5 +26,6 @@ clock_getres (clockid_t clock_id, struct timespec *res)
   __set_errno (ENOSYS);
   return -1;
 }
+strong_alias (clock_getres, __clock_getres)
 stub_warning (clock_getres)
 #include <stub-tag.h>
diff --git a/rt/clock_gettime.c b/rt/clock_gettime.c
index 1203f011795..5139e8724c0 100644
--- a/rt/clock_gettime.c
+++ b/rt/clock_gettime.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1999, 2005 Free Software Foundation, Inc.
+/* Get the current value of a clock.  Stub version.
+   Copyright (C) 1999-2012 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
@@ -25,6 +26,6 @@ clock_gettime (clockid_t clock_id, struct timespec *tp)
   __set_errno (ENOSYS);
   return -1;
 }
-librt_hidden_def (clock_gettime)
+strong_alias (clock_gettime, __clock_gettime)
 stub_warning (clock_gettime)
 #include <stub-tag.h>
diff --git a/rt/clock_nanosleep.c b/rt/clock_nanosleep.c
index 0b16ad2d4f0..d9a0e92d4b3 100644
--- a/rt/clock_nanosleep.c
+++ b/rt/clock_nanosleep.c
@@ -33,5 +33,6 @@ clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
   /* Not implemented.  */
   return ENOSYS;
 }
+strong_alias (clock_nanosleep, __clock_nanosleep)
 stub_warning (clock_nanosleep)
 #include <stub-tag.h>
diff --git a/rt/clock_settime.c b/rt/clock_settime.c
index 3b3c3c48d55..6f7cdd6edcd 100644
--- a/rt/clock_settime.c
+++ b/rt/clock_settime.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1999 Free Software Foundation, Inc.
+/* Set a clock to a given value.  Stub version.
+   Copyright (C) 1999-2012 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
@@ -25,5 +26,6 @@ clock_settime (clockid_t clock_id, const struct timespec *tp)
   __set_errno (ENOSYS);
   return -1;
 }
+strong_alias (clock_settime, __clock_settime)
 stub_warning (clock_settime)
 #include <stub-tag.h>
diff --git a/sysdeps/posix/clock_getres.c b/sysdeps/posix/clock_getres.c
index 938877e937b..678257b3aa8 100644
--- a/sysdeps/posix/clock_getres.c
+++ b/sysdeps/posix/clock_getres.c
@@ -1,5 +1,5 @@
 /* clock_getres -- Get the resolution of a POSIX clockid_t.
-   Copyright (C) 1999,2000,2001,2003,2004,2008 Free Software Foundation, Inc.
+   Copyright (C) 1999-2012 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
@@ -115,3 +115,4 @@ clock_getres (clockid_t clock_id, struct timespec *res)
 
   return retval;
 }
+strong_alias (clock_getres, __clock_getres)
diff --git a/sysdeps/unix/clock_gettime.c b/sysdeps/unix/clock_gettime.c
index db6643a1c49..c9a91e33768 100644
--- a/sysdeps/unix/clock_gettime.c
+++ b/sysdeps/unix/clock_gettime.c
@@ -1,5 +1,5 @@
 /* clock_gettime -- Get the current time from a POSIX clockid_t.  Unix version.
-   Copyright (C) 1999-2004, 2005, 2007, 2011 Free Software Foundation, Inc.
+   Copyright (C) 1999-2012 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
@@ -132,4 +132,4 @@ clock_gettime (clockid_t clock_id, struct timespec *tp)
 
   return retval;
 }
-librt_hidden_def (clock_gettime)
+strong_alias (clock_gettime, __clock_gettime)
diff --git a/sysdeps/unix/clock_nanosleep.c b/sysdeps/unix/clock_nanosleep.c
index 1b439965518..c39f6a79ca4 100644
--- a/sysdeps/unix/clock_nanosleep.c
+++ b/sysdeps/unix/clock_nanosleep.c
@@ -1,5 +1,5 @@
 /* High-resolution sleep with the specified clock.
-   Copyright (C) 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2000-2012 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
@@ -98,3 +98,4 @@ clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
 
   return __builtin_expect (nanosleep (req, rem), 0) ? errno : 0;
 }
+strong_alias (clock_nanosleep, __clock_nanosleep)
diff --git a/sysdeps/unix/clock_settime.c b/sysdeps/unix/clock_settime.c
index 97caa0d0fd8..e09463a561e 100644
--- a/sysdeps/unix/clock_settime.c
+++ b/sysdeps/unix/clock_settime.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999-2004, 2006, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2012 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
@@ -124,3 +124,4 @@ clock_settime (clockid_t clock_id, const struct timespec *tp)
 
   return retval;
 }
+strong_alias (clock_settime, __clock_settime)
diff --git a/sysdeps/unix/sysv/linux/clock_getcpuclockid.c b/sysdeps/unix/sysv/linux/clock_getcpuclockid.c
index 8700354a922..c00f5ea064e 100644
--- a/sysdeps/unix/sysv/linux/clock_getcpuclockid.c
+++ b/sysdeps/unix/sysv/linux/clock_getcpuclockid.c
@@ -50,3 +50,4 @@ clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
   else
     return INTERNAL_SYSCALL_ERRNO (r, err);
 }
+strong_alias (clock_getcpuclockid, __clock_getcpuclockid)
diff --git a/sysdeps/unix/sysv/linux/clock_nanosleep.c b/sysdeps/unix/sysv/linux/clock_nanosleep.c
index 110296363af..b12bd868f22 100644
--- a/sysdeps/unix/sysv/linux/clock_nanosleep.c
+++ b/sysdeps/unix/sysv/linux/clock_nanosleep.c
@@ -52,3 +52,4 @@ clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
   return (INTERNAL_SYSCALL_ERROR_P (r, err)
 	  ? INTERNAL_SYSCALL_ERRNO (r, err) : 0);
 }
+strong_alias (clock_nanosleep, __clock_nanosleep)
diff --git a/sysdeps/unix/sysv/linux/i386/get_clockfreq.c b/sysdeps/unix/sysv/linux/i386/get_clockfreq.c
index 821e35e4c28..920b0d553e9 100644
--- a/sysdeps/unix/sysv/linux/i386/get_clockfreq.c
+++ b/sysdeps/unix/sysv/linux/i386/get_clockfreq.c
@@ -1,5 +1,5 @@
 /* Get frequency of the system processor.  i386/Linux version.
-   Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+   Copyright (C) 2000-2012 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
@@ -39,7 +39,7 @@ __get_clockfreq (void)
   if (result != 0)
     return result;
 
-  fd = open ("/proc/cpuinfo", O_RDONLY);
+  fd = __open ("/proc/cpuinfo", O_RDONLY);
   if (__builtin_expect (fd != -1, 1))
     {
       /* XXX AFAIK the /proc filesystem can generate "files" only up
@@ -47,7 +47,7 @@ __get_clockfreq (void)
       char buf[4096];
       ssize_t n;
 
-      n = read (fd, buf, sizeof buf);
+      n = __read (fd, buf, sizeof buf);
       if (__builtin_expect (n, 1) > 0)
 	{
 	  char *mhz = memmem (buf, n, "cpu MHz", 7);
@@ -83,7 +83,7 @@ __get_clockfreq (void)
 	    }
 	}
 
-      close (fd);
+      __close (fd);
     }
 
   return result;
diff --git a/sysdeps/unix/sysv/linux/i386/nptl/libc.abilist b/sysdeps/unix/sysv/linux/i386/nptl/libc.abilist
index 0e8576fdd52..67d592959b2 100644
--- a/sysdeps/unix/sysv/linux/i386/nptl/libc.abilist
+++ b/sysdeps/unix/sysv/linux/i386/nptl/libc.abilist
@@ -1813,6 +1813,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.2
  GLIBC_2.2 A
diff --git a/sysdeps/unix/sysv/linux/powerpc/Makefile b/sysdeps/unix/sysv/linux/powerpc/Makefile
index 6bdf4dc7f51..4ff7e849c3f 100644
--- a/sysdeps/unix/sysv/linux/powerpc/Makefile
+++ b/sysdeps/unix/sysv/linux/powerpc/Makefile
@@ -19,6 +19,6 @@ endif
 
 ifeq ($(subdir),misc)
 sysdep_headers += bits/ppc.h
-sysdep_routines += get_clockfreq get_timebase_freq
+sysdep_routines += get_timebase_freq
 tests += test-gettimebasefreq
 endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libc.abilist
index ab96361d403..a3cd89540d0 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libc.abilist
@@ -1774,6 +1774,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
  __ppc_get_timebase_freq F
 GLIBC_2.2
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libc.abilist
index a60b72ad1aa..0a80d0c57d5 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libc.abilist
@@ -80,6 +80,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
  __ppc_get_timebase_freq F
 GLIBC_2.3
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libc.abilist
index ff0b82f51f8..d9914ff53fa 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libc.abilist
@@ -1765,6 +1765,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.2
  GLIBC_2.2 A
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libc.abilist
index 2fb0786942c..ef1ead30697 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libc.abilist
@@ -86,6 +86,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.2
  GLIBC_2.2 A
diff --git a/sysdeps/unix/sysv/linux/sh/nptl/libc.abilist b/sysdeps/unix/sysv/linux/sh/nptl/libc.abilist
index 3fd150e7e57..733b550fee0 100644
--- a/sysdeps/unix/sysv/linux/sh/nptl/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/nptl/libc.abilist
@@ -86,6 +86,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.2
  GLIBC_2.2 A
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libc.abilist
index 7d5a3429fdc..3a96ea883bc 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libc.abilist
@@ -1770,6 +1770,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.2
  GLIBC_2.2 A
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c b/sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
index cbb817952e3..67ff77fa8cb 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
@@ -34,13 +34,13 @@ __get_clockfreq_via_cpuinfo (void)
 
   result = 0;
 
-  fd = open ("/proc/cpuinfo", O_RDONLY);
+  fd = __open ("/proc/cpuinfo", O_RDONLY);
   if (fd != -1)
     {
       char buf[8192];
       ssize_t n;
 
-      n = read (fd, buf, sizeof buf);
+      n = __read (fd, buf, sizeof buf);
       if (n > 0)
 	{
 	  char *mhz = memmem (buf, n, "Cpu0ClkTck", 7);
@@ -72,7 +72,7 @@ __get_clockfreq_via_cpuinfo (void)
 	    }
 	}
 
-      close (fd);
+      __close (fd);
     }
 
   return result;
@@ -86,7 +86,7 @@ __get_clockfreq_via_proc_openprom (void)
 
   result = 0;
 
-  obp_fd = open ("/proc/openprom", O_RDONLY);
+  obp_fd = __open ("/proc/openprom", O_RDONLY);
   if (obp_fd != -1)
     {
       unsigned long int buf[4096 / sizeof (unsigned long int)];
@@ -94,8 +94,8 @@ __get_clockfreq_via_proc_openprom (void)
       off_t dbase = (off_t) 0;
       ssize_t len;
 
-      while ((len = getdirentries (obp_fd, (char *) dirp,
-				   sizeof (buf), &dbase)) > 0)
+      while ((len = __getdirentries (obp_fd, (char *) dirp,
+                                     sizeof (buf), &dbase)) > 0)
 	{
 	  struct dirent *this_dirp = dirp;
 
@@ -113,13 +113,13 @@ __get_clockfreq_via_proc_openprom (void)
 	      __stpcpy (prop = __stpcpy (__stpcpy (node, "/proc/openprom/"),
 					 this_dirp->d_name),
 			"/device_type");
-	      fd = open (node, O_RDONLY);
+	      fd = __open (node, O_RDONLY);
 	      if (fd != -1)
 		{
 		  char type_string[128];
 		  int ret;
 
-		  ret = read (fd, type_string, sizeof (type_string));
+		  ret = __read (fd, type_string, sizeof (type_string));
 		  if (ret > 0 && strncmp (type_string, "'cpu'", 5) == 0)
 		    {
 		      int clkfreq_fd;
@@ -135,7 +135,7 @@ __get_clockfreq_via_proc_openprom (void)
 			  close (clkfreq_fd);
 			}
 		    }
-		  close (fd);
+		  __close (fd);
 		}
 
 	      if (result != 0)
@@ -148,7 +148,7 @@ __get_clockfreq_via_proc_openprom (void)
 	  if (result != 0)
 	    break;
 	}
-      close (obp_fd);
+      __close (obp_fd);
     }
 
   return result;
@@ -178,7 +178,7 @@ __get_clockfreq_via_dev_openprom (void)
 
   result = 0;
 
-  obp_dev_fd = open ("/dev/openprom", O_RDONLY);
+  obp_dev_fd = __open ("/dev/openprom", O_RDONLY);
   if (obp_dev_fd != -1)
     {
       char obp_buf[8192];
@@ -188,7 +188,7 @@ __get_clockfreq_via_dev_openprom (void)
       obp_cmd->oprom_size =
 	sizeof (obp_buf) - sizeof (unsigned int);
       set_obp_int (obp_cmd, 0);
-      ret = ioctl (obp_dev_fd, OPROMCHILD, (char *) obp_cmd);
+      ret = __ioctl (obp_dev_fd, OPROMCHILD, (char *) obp_cmd);
       if (ret == 0)
 	{
 	  int cur_node = get_obp_int (obp_cmd);
@@ -197,20 +197,20 @@ __get_clockfreq_via_dev_openprom (void)
 	    {
 	      obp_cmd->oprom_size = sizeof (obp_buf) - sizeof (unsigned int);
 	      strcpy (obp_cmd->oprom_array, "device_type");
-	      ret = ioctl (obp_dev_fd, OPROMGETPROP, (char *) obp_cmd);
+	      ret = __ioctl (obp_dev_fd, OPROMGETPROP, (char *) obp_cmd);
 	      if (ret == 0
 		  && strncmp (obp_cmd->oprom_array, "cpu", 3) == 0)
 		{
 		  obp_cmd->oprom_size = (sizeof (obp_buf)
 					 - sizeof (unsigned int));
 		  strcpy (obp_cmd->oprom_array, "clock-frequency");
-		  ret = ioctl (obp_dev_fd, OPROMGETPROP, (char *) obp_cmd);
+		  ret = __ioctl (obp_dev_fd, OPROMGETPROP, (char *) obp_cmd);
 		  if (ret == 0)
 		    result = (hp_timing_t) get_obp_int (obp_cmd);
 		}
 	      obp_cmd->oprom_size = sizeof (obp_buf) - sizeof (unsigned int);
 	      set_obp_int (obp_cmd, cur_node);
-	      ret = ioctl (obp_dev_fd, OPROMNEXT, (char *) obp_cmd);
+	      ret = __ioctl (obp_dev_fd, OPROMNEXT, (char *) obp_cmd);
 	      if (ret < 0)
 		break;
 	      cur_node = get_obp_int (obp_cmd);
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libc.abilist
index 6d6e57c114b..aa892b8b8bc 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libc.abilist
@@ -91,6 +91,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.2
  GLIBC_2.2 A
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/nptl/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/64/nptl/libc.abilist
index d6ab153e19f..a42d424cdeb 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/nptl/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/nptl/libc.abilist
@@ -82,6 +82,11 @@ GLIBC_2.16
  timespec_get F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F
 GLIBC_2.2.5
  GLIBC_2.2.5 A
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libc.abilist
index 65bcead8bc1..108b80fb43e 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libc.abilist
@@ -2080,4 +2080,9 @@ GLIBC_2.16
  xprt_unregister F
 GLIBC_2.17
  GLIBC_2.17 A
+ clock_getcpuclockid F
+ clock_getres F
+ clock_gettime F
+ clock_nanosleep F
+ clock_settime F
  secure_getenv F