Use STB_SECONDARY on pthread functions in libchjl/pthread/2.21

Use STB_SECONDARY binding on pthread functions in libc so that they will
be preempted by definitions in libpthread at link-time as well as at
run-time.

	* csu/libc-tls.c (__pthread_initialize_minimal): Mark it
	secondary if HAVE_ASM_SECONDARY_DIRECTIVE is defined.
	* misc/error.c (error): Replace pthread_setcancelstate with
	__pthread_setcancelstate.
	(error_at_line): Likewise.
	* posix/wordexp.c (parse_comm): Likewise.
	* stdlib/fmtmsg.c (fmtmsg): Likewise.
	* nptl/Makefile: Include ../Makeconfig.
	(libc-libpthread-routines): New macro.
	(libc-libpthread-static-only-routines): Likewise.
	(static-only-routines): Add $(libc-libpthread-static-only-routines)
	if $(have-secondary) is yes.
	(routines): Add $(libc-libpthread-routines) if $(have-secondary)
	is yes.
	(CFLAGS-libc-pthread_unwind.c): New.
	* nptl/Versions [HAVE_ASM_SECONDARY_DIRECTIVE] (libc:GLIBC_2.0):
	Add _pthread_cleanup_pop_restore, _pthread_cleanup_push_defer,
	__pthread_getspecific, __pthread_setspecific,
	__pthread_key_create, pthread_once, __pthread_once,
	__pthread_mutex_lock and __pthread_mutex_unlock.
	[HAVE_ASM_SECONDARY_DIRECTIVE] (libc:GLIBC_2.2): Add
	__pthread_rwlock_init, __pthread_rwlock_destroy,
	__pthread_rwlock_rdlock, __pthread_rwlock_wrlock and
	__pthread_rwlock_unlock.
	[HAVE_ASM_SECONDARY_DIRECTIVE] (libc:GLIBC_PRIVATE): Add
	__pthread_unwind and __pthread_setcancelstate.
	[HAVE_ASM_SECONDARY_DIRECTIVE] (libpthread:GLIBC_PRIVATE): Add
	__pthread_setcancelstate.
	* nptl/forward.c [HAVE_ASM_SECONDARY_DIRECTIVE] (FORWARD2): New.
	(FORWARD_NORETURN): Likewise.
	(pthread_setcancelstate): Renamed to ...
	(__pthread_setcancelstate): This.  Don't define if
	(__pthread_unwind): Don't define if HAVE_ASM_SECONDARY_DIRECTIVE
	is defined.
	* nptl/libc-cleanup_defer_compat.c: New file.
	* nptl/libc-pthread_getspecific.c: Likewise.
	* nptl/libc-pthread_key_create.c: Likewise.
	* nptl/libc-pthread_mutex_lock.c: Likewise.
	* nptl/libc-pthread_mutex_unlock.c: Likewise.
	* nptl/libc-pthread_once.c: Likewise.
	* nptl/libc-pthread_rwlock_destroy.c: Likewise.
	* nptl/libc-pthread_rwlock_init.c: Likewise.
	* nptl/libc-pthread_rwlock_rdlock.c: Likewise.
	* nptl/libc-pthread_rwlock_unlock.c: Likewise.
	* nptl/libc-pthread_rwlock_wrlock.c: Likewise.
	* nptl/libc-pthread_setcancelstate.c: Likewise.
	* nptl/libc-pthread_setspecific.c: Likewise.
	* nptl/libc-pthread_unwind.c: Likewise.
	* nptl/nptl-init.c (pthread_functions): Don't include secondary
	pthread functions in libc if HAVE_ASM_SECONDARY_DIRECTIVE is
	defined.  Replace ptr_pthread_setcancelstate with
	ptr___pthread_setcancelstate.
	* sysdeps/nptl/pthread-functions.h (pthread_functions): Likewise.
	* nptl/pthreadP.h (__pthread_unwind): Don't mark it weak if
	HAVE_ASM_SECONDARY_DIRECTIVE is defined.
	(__pthread_cond_broadcast_2_0): Declare only if not in libc.
	(__pthread_cond_destroy_2_0): Likewise.
	(__pthread_cond_init_2_0): Likewise.
	(__pthread_cond_signal_2_0): Likewise.
	(__pthread_cond_timedwait_2_0): Likewise.
	(__pthread_cond_wait_2_0): Likewise.
	* scripts/abilist.awk: Support secondary symbols.
	* sysdeps/generic/localplt.data: Allow pthread functions.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/localplt.data: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/nptl/bits/libc-lockP.h (PTFAVAIL): Defined as 1 if
	HAVE_ASM_SECONDARY_DIRECTIVE is defined.
	(__libc_maybe_call): Always call FUNC if
	HAVE_ASM_SECONDARY_DIRECTIVE is defined.
	(__libc_ptf_call): Likewise.
	(__libc_ptf_call_always): Likewise.
	(__pthread_mutex_init): Don't mark it weak if
	HAVE_ASM_SECONDARY_DIRECTIVE is defined.
	(__pthread_mutex_destroy): Likewise.
	(__pthread_mutex_lock): Likewise.
	(__pthread_mutex_trylock): Likewise.
	(__pthread_mutex_unlock): Likewise.
	(__pthread_mutexattr_init): Likewise.
	(__pthread_mutexattr_destroy): Likewise.
	(__pthread_mutexattr_settype): Likewise.
	(__pthread_rwlock_destroy): Likewise.
	(__pthread_rwlock_rdlock): Likewise.
	(__pthread_rwlock_tryrdlock): Likewise.
	(__pthread_rwlock_wrlock): Likewise.
	(__pthread_rwlock_trywrlock): Likewise.
	(__pthread_rwlock_unlock): Likewise.
	(__pthread_key_create): Likewise.
	(__pthread_setspecific): Likewise.
	(__pthread_getspecific): Likewise.
	(__pthread_once): Likewise.
	(__pthread_initialize): Likewise.
	(__pthread_atfork): Likewise.
	(_pthread_cleanup_push_defer): Likewise.
	(_pthread_cleanup_pop_restore): Likewise.
	(__pthread_setcancelstate): New prototype.
	(pthread_setcancelstate): Renamed to ...
	(__pthread_setcancelstate): This.  Don't mark it weak if
	HAVE_ASM_SECONDARY_DIRECTIVE is defined.
	* sysdeps/unix/sysv/linux/x86_64/cancellation.S (__pthread_unwind):
	Likewise.
	* sysdeps/unix/sysv/linux/fatal-prepare.h (FATAL_PREPARE): Always
	call __pthread_setcancelstate if HAVE_ASM_SECONDARY_DIRECTIVE is
	defined.  Replace pthread_setcancelstate with
	__pthread_setcancelstate.
	* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Make
	__lll_lock_wait_private and __lll_unlock_wake_private weak in
	libc.a.
	* sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S: Likewise.

19 files changed, 537 insertions, 10 deletions

diff --git a/nptl/Makefile b/nptl/Makefile
index b5345ce4bc..ad5845dd2d 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -28,9 +28,31 @@ extra-libs := libpthread
 extra-libs-others := $(extra-libs)
 install-lib-ldscripts := libpthread.so
 
+include ../Makeconfig
+
 routines = alloca_cutoff forward libc-lowlevellock libc-cancellation \
 	   libc-cleanup libc_pthread_init libc_multiple_threads \
 	   register-atfork unregister-atfork
+ifeq (yes,$(have-secondary))
+libc-libpthread-routines = libc-cleanup_defer_compat \
+			   libc-pthread_getspecific \
+			   libc-pthread_key_create \
+			   libc-pthread_mutex_lock \
+			   libc-pthread_mutex_unlock \
+			   libc-pthread_once \
+			   libc-pthread_rwlock_rdlock \
+			   libc-pthread_rwlock_unlock \
+			   libc-pthread_rwlock_wrlock \
+			   libc-pthread_setcancelstate \
+			   libc-pthread_setspecific \
+			   libc-pthread_unwind
+
+libc-libpthread-static-only-routines = libc-pthread_rwlock_destroy \
+				       libc-pthread_rwlock_init
+static-only-routines += $(libc-libpthread-static-only-routines)
+libc-libpthread-routines += $(libc-libpthread-static-only-routines)
+routines += $(libc-libpthread-routines)
+endif
 shared-only-routines = forward
 
 libpthread-routines = nptl-init vars events version \
@@ -167,7 +189,13 @@ CFLAGS-pthread_exit.c = -fexceptions
 
 # Among others, __pthread_unwind is forwarded.  This function must handle
 # exceptions.
+ifeq (yes,$(have-secondary))
+# __pthread_unwind can't call abort and GCC doesn't know kill won't
+# return.
+CFLAGS-libc-pthread_unwind.c += -fexceptions -Wno-error
+else
 CFLAGS-forward.c = -fexceptions
+endif
 
 # The following are cancellation points.  Some of the functions can
 # block and therefore temporarily enable asynchronous cancellation.
diff --git a/nptl/Versions b/nptl/Versions
index 4e134fa42e..d80c6bd130 100644
--- a/nptl/Versions
+++ b/nptl/Versions
@@ -16,10 +16,26 @@ libc {
     pthread_mutex_lock; pthread_mutex_unlock;
     pthread_self;
     pthread_setcancelstate; pthread_setcanceltype;
+#if HAVE_ASM_SECONDARY_DIRECTIVE
+    # Provide additional secondary pthread functions.
+    _pthread_cleanup_pop_restore; _pthread_cleanup_push_defer;
+    __pthread_getspecific; __pthread_setspecific;
+    __pthread_key_create;
+    pthread_once;
+    __pthread_once;
+    __pthread_mutex_lock; __pthread_mutex_unlock;
+#endif
   }
   GLIBC_2.1 {
     pthread_attr_init;
   }
+#if HAVE_ASM_SECONDARY_DIRECTIVE
+  GLIBC_2.2 {
+    # Provide additional secondary pthread functions.
+    __pthread_rwlock_rdlock; __pthread_rwlock_wrlock;
+    __pthread_rwlock_unlock;
+  }
+#endif
   GLIBC_2.3.2 {
     __register_atfork;
 
@@ -36,6 +52,11 @@ libc {
     __libc_pthread_init;
     __libc_current_sigrtmin_private; __libc_current_sigrtmax_private;
     __libc_allocate_rtsig_private;
+#if HAVE_ASM_SECONDARY_DIRECTIVE
+    # Provide additional secondary pthread function.
+    __pthread_unwind;
+    __pthread_setcancelstate;
+#endif
   }
 }
 
@@ -270,6 +291,9 @@ libpthread {
     __pthread_initialize_minimal;
     __pthread_clock_gettime; __pthread_clock_settime;
     __pthread_unwind; __pthread_get_minstack;
+#if HAVE_ASM_SECONDARY_DIRECTIVE
+    __pthread_setcancelstate;
+#endif
     __shm_directory;
   }
 }
diff --git a/nptl/forward.c b/nptl/forward.c
index db74f8df92..8bb8c18ea2 100644
--- a/nptl/forward.c
+++ b/nptl/forward.c
@@ -31,7 +31,26 @@ struct pthread_functions __libc_pthread_functions attribute_hidden;
 int __libc_pthread_functions_init attribute_hidden;
 
 
-#define FORWARD2(name, rettype, decl, params, defaction) \
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+/* Make sure that it is used only when libpthread is not used.  */
+# define FORWARD2(name, rettype, decl, params, defaction) \
+asm (".secondary "#name);						      \
+rettype									      \
+name decl								      \
+{									      \
+  defaction;								      \
+}
+
+/* Same as FORWARD2, only without return.  */
+# define FORWARD_NORETURN(name, rettype, decl, params, defaction) \
+asm (".secondary "#name);						      \
+rettype									      \
+name decl								      \
+{									      \
+  defaction;								      \
+}
+#else
+# define FORWARD2(name, rettype, decl, params, defaction) \
 rettype									      \
 name decl								      \
 {									      \
@@ -42,7 +61,7 @@ name decl								      \
 }
 
 /* Same as FORWARD2, only without return.  */
-#define FORWARD_NORETURN(name, rettype, decl, params, defaction) \
+# define FORWARD_NORETURN(name, rettype, decl, params, defaction) \
 rettype									      \
 name decl								      \
 {									      \
@@ -51,6 +70,7 @@ name decl								      \
 									      \
   PTHFCT_CALL (ptr_##name, params);					      \
 }
+#endif
 
 #define FORWARD(name, decl, params, defretval) \
   FORWARD2 (name, int, decl, params, return defretval)
@@ -197,13 +217,15 @@ FORWARD (pthread_mutex_unlock, (pthread_mutex_t *mutex), (mutex), 0)
 FORWARD2 (pthread_self, pthread_t, (void), (), return 0)
 
 
-FORWARD (pthread_setcancelstate, (int state, int *oldstate), (state, oldstate),
-	 0)
+FORWARD (__pthread_setcancelstate, (int state, int *oldstate),
+	 (state, oldstate), 0)
 
 FORWARD (pthread_setcanceltype, (int type, int *oldtype), (type, oldtype), 0)
 
+#ifndef HAVE_ASM_SECONDARY_DIRECTIVE
 FORWARD_NORETURN (__pthread_unwind,
                   void attribute_hidden __attribute ((noreturn))
                   __cleanup_fct_attribute attribute_compat_text_section,
                   (__pthread_unwind_buf_t *buf), (buf),
                   __safe_fatal ())
+#endif
diff --git a/nptl/libc-cleanup_defer_compat.c b/nptl/libc-cleanup_defer_compat.c
new file mode 100644
index 0000000000..ea1cc6e103
--- /dev/null
+++ b/nptl/libc-cleanup_defer_compat.c
@@ -0,0 +1,40 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+# include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used  */
+asm (".secondary _pthread_cleanup_push_defer");
+
+void
+_pthread_cleanup_push_defer (struct _pthread_cleanup_buffer *buffer,
+			     void (*routine) (void *), void *arg)
+{
+}
+
+/* Make sure that it is used only when libpthread is not used  */
+asm (".secondary _pthread_cleanup_pop_restore");
+
+void
+_pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer *buffer,
+			      int execute)
+{
+  if (execute)
+    buffer->__routine (buffer->__arg);
+}
+#endif
diff --git a/nptl/libc-pthread_getspecific.c b/nptl/libc-pthread_getspecific.c
new file mode 100644
index 0000000000..31a02586ae
--- /dev/null
+++ b/nptl/libc-pthread_getspecific.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+#include <stdlib.h>
+#include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_getspecific");
+
+void *
+__pthread_getspecific (pthread_key_t key)
+{
+  /* Not valid.  */
+  return NULL;
+}
+#endif
diff --git a/nptl/libc-pthread_key_create.c b/nptl/libc-pthread_key_create.c
new file mode 100644
index 0000000000..e6f631bfe2
--- /dev/null
+++ b/nptl/libc-pthread_key_create.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+# include <errno.h>
+# include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_key_create");
+
+int
+__pthread_key_create (pthread_key_t *key, void (*destr) (void *))
+{
+  return EINVAL;
+}
+#endif
diff --git a/nptl/libc-pthread_mutex_lock.c b/nptl/libc-pthread_mutex_lock.c
new file mode 100644
index 0000000000..15b97b1045
--- /dev/null
+++ b/nptl/libc-pthread_mutex_lock.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+# include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_mutex_lock");
+asm (".secondary pthread_mutex_lock");
+
+int
+__pthread_mutex_lock (pthread_mutex_t *mutex)
+{
+  return 0;
+}
+
+strong_alias (__pthread_mutex_lock, pthread_mutex_lock)
+#endif
diff --git a/nptl/libc-pthread_mutex_unlock.c b/nptl/libc-pthread_mutex_unlock.c
new file mode 100644
index 0000000000..f4a99490f6
--- /dev/null
+++ b/nptl/libc-pthread_mutex_unlock.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+# include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_mutex_unlock");
+asm (".secondary pthread_mutex_unlock");
+
+int
+__pthread_mutex_unlock (pthread_mutex_t *mutex)
+{
+  return 0;
+}
+
+strong_alias (__pthread_mutex_unlock, pthread_mutex_unlock)
+#endif
diff --git a/nptl/libc-pthread_once.c b/nptl/libc-pthread_once.c
new file mode 100644
index 0000000000..ed26e06e7f
--- /dev/null
+++ b/nptl/libc-pthread_once.c
@@ -0,0 +1,37 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+#include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_once");
+asm (".secondary pthread_once");
+
+int
+__pthread_once (pthread_once_t *once_control,
+		void (*init_routine) (void))
+{
+  if (*once_control == PTHREAD_ONCE_INIT)
+    {
+      init_routine ();
+      *once_control |= 2;
+    }
+  return 0;
+}
+strong_alias (__pthread_once, pthread_once)
+#endif
diff --git a/nptl/libc-pthread_rwlock_destroy.c b/nptl/libc-pthread_rwlock_destroy.c
new file mode 100644
index 0000000000..9df8b8494a
--- /dev/null
+++ b/nptl/libc-pthread_rwlock_destroy.c
@@ -0,0 +1,29 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+# include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_rwlock_destroy");
+
+int
+__pthread_rwlock_destroy (pthread_rwlock_t *rwlock)
+{
+  return 0;
+}
+#endif
diff --git a/nptl/libc-pthread_rwlock_init.c b/nptl/libc-pthread_rwlock_init.c
new file mode 100644
index 0000000000..c245724db2
--- /dev/null
+++ b/nptl/libc-pthread_rwlock_init.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+# include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_rwlock_init");
+
+int
+__pthread_rwlock_init (pthread_rwlock_t *rwlock,
+		       const pthread_rwlockattr_t *attr)
+{
+  return 0;
+}
+#endif
diff --git a/nptl/libc-pthread_rwlock_rdlock.c b/nptl/libc-pthread_rwlock_rdlock.c
new file mode 100644
index 0000000000..b48448874b
--- /dev/null
+++ b/nptl/libc-pthread_rwlock_rdlock.c
@@ -0,0 +1,29 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+# include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_rwlock_rdlock");
+
+int
+__pthread_rwlock_rdlock (pthread_rwlock_t *rwlock)
+{
+  return 0;
+}
+#endif
diff --git a/nptl/libc-pthread_rwlock_unlock.c b/nptl/libc-pthread_rwlock_unlock.c
new file mode 100644
index 0000000000..b8c3e90a8a
--- /dev/null
+++ b/nptl/libc-pthread_rwlock_unlock.c
@@ -0,0 +1,29 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+# include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_rwlock_unlock");
+
+int
+__pthread_rwlock_unlock (pthread_rwlock_t *rwlock)
+{
+  return 0;
+}
+#endif
diff --git a/nptl/libc-pthread_rwlock_wrlock.c b/nptl/libc-pthread_rwlock_wrlock.c
new file mode 100644
index 0000000000..25092ee6e0
--- /dev/null
+++ b/nptl/libc-pthread_rwlock_wrlock.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 2003-2012 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.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; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+# include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_rwlock_wrlock");
+
+int
+__pthread_rwlock_wrlock (pthread_rwlock_t *rwlock)
+{
+  return 0;
+}
+#endif
diff --git a/nptl/libc-pthread_setcancelstate.c b/nptl/libc-pthread_setcancelstate.c
new file mode 100644
index 0000000000..c8872a9f0a
--- /dev/null
+++ b/nptl/libc-pthread_setcancelstate.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+# include <errno.h>
+# include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_setcancelstate");
+
+int
+__pthread_setcancelstate (int state, int *oldstate)
+{
+  return 0;
+}
+# ifdef SHARED
+asm (".secondary pthread_setcancelstate");
+strong_alias (__pthread_setcancelstate, pthread_setcancelstate)
+# endif
+#endif
diff --git a/nptl/libc-pthread_setspecific.c b/nptl/libc-pthread_setspecific.c
new file mode 100644
index 0000000000..a904f07067
--- /dev/null
+++ b/nptl/libc-pthread_setspecific.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+#include <errno.h>
+#include "pthreadP.h"
+
+/* Make sure that it is used only when libpthread is not used.  */
+asm (".secondary __pthread_setspecific");
+
+int
+__pthread_setspecific (pthread_key_t key, const void *value)
+{
+  /* Not valid.  */
+  return EINVAL;
+}
+#endif
diff --git a/nptl/libc-pthread_unwind.c b/nptl/libc-pthread_unwind.c
new file mode 100644
index 0000000000..9932ba7438
--- /dev/null
+++ b/nptl/libc-pthread_unwind.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2015 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/>.  */
+
+#ifdef HAVE_ASM_SECONDARY_DIRECTIVE
+# include <sysdep.h>
+# include <safe-fatal.h>
+
+/* Make sure that it is used only when libpthread is not used  */
+asm (".secondary __pthread_unwind");
+
+void
+__attribute ((noreturn))
+__cleanup_fct_attribute
+attribute_compat_text_section
+__pthread_unwind (__pthread_unwind_buf_t *buf)
+{
+  /* We cannot call abort() here.  */
+  __safe_fatal ();
+}
+#endif
diff --git a/nptl/nptl-init.c b/nptl/nptl-init.c
index 1ad41c5bb3..6397f9e81c 100644
--- a/nptl/nptl-init.c
+++ b/nptl/nptl-init.c
@@ -85,10 +85,11 @@ static void nptl_freeres (void);
 
 static const struct pthread_functions pthread_functions =
   {
+# ifndef HAVE_ASM_SECONDARY_DIRECTIVE
     .ptr_pthread_attr_destroy = __pthread_attr_destroy,
-# if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
+#  if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
     .ptr___pthread_attr_init_2_0 = __pthread_attr_init_2_0,
-# endif
+#  endif
     .ptr___pthread_attr_init_2_1 = __pthread_attr_init_2_1,
     .ptr_pthread_attr_getdetachstate = __pthread_attr_getdetachstate,
     .ptr_pthread_attr_setdetachstate = __pthread_attr_setdetachstate,
@@ -125,9 +126,8 @@ static const struct pthread_functions pthread_functions =
     .ptr_pthread_mutex_lock = __pthread_mutex_lock,
     .ptr_pthread_mutex_unlock = __pthread_mutex_unlock,
     .ptr_pthread_self = __pthread_self,
-    .ptr_pthread_setcancelstate = __pthread_setcancelstate,
+    .ptr___pthread_setcancelstate = __pthread_setcancelstate,
     .ptr_pthread_setcanceltype = __pthread_setcanceltype,
-    .ptr___pthread_cleanup_upto = __pthread_cleanup_upto,
     .ptr___pthread_once = __pthread_once,
     .ptr___pthread_rwlock_rdlock = __pthread_rwlock_rdlock,
     .ptr___pthread_rwlock_wrlock = __pthread_rwlock_wrlock,
@@ -137,8 +137,10 @@ static const struct pthread_functions pthread_functions =
     .ptr___pthread_setspecific = __pthread_setspecific,
     .ptr__pthread_cleanup_push_defer = __pthread_cleanup_push_defer,
     .ptr__pthread_cleanup_pop_restore = __pthread_cleanup_pop_restore,
-    .ptr_nthreads = &__nptl_nthreads,
     .ptr___pthread_unwind = &__pthread_unwind,
+# endif
+    .ptr___pthread_cleanup_upto = __pthread_cleanup_upto,
+    .ptr_nthreads = &__nptl_nthreads,
     .ptr__nptl_deallocate_tsd = __nptl_deallocate_tsd,
 # ifdef SIGSETXID
     .ptr__nptl_setxid = __nptl_setxid,
diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h
index 84a7105848..c09f9d295c 100644
--- a/nptl/pthreadP.h
+++ b/nptl/pthreadP.h
@@ -244,7 +244,8 @@ extern int __pthread_debug attribute_hidden;
 
 extern void __pthread_unwind (__pthread_unwind_buf_t *__buf)
      __cleanup_fct_attribute __attribute ((__noreturn__))
-#if !defined SHARED && !IS_IN (libpthread)
+#if !defined SHARED && !IS_IN (libpthread) \
+    && !defined HAVE_ASM_SECONDARY_DIRECTIVE
      weak_function
 #endif
      ;
@@ -506,6 +507,7 @@ hidden_proto (__pthread_setspecific)
 hidden_proto (__pthread_once)
 #endif
 
+#if !IS_IN (libc)
 extern int __pthread_cond_broadcast_2_0 (pthread_cond_2_0_t *cond);
 extern int __pthread_cond_destroy_2_0 (pthread_cond_2_0_t *cond);
 extern int __pthread_cond_init_2_0 (pthread_cond_2_0_t *cond,
@@ -516,6 +518,7 @@ extern int __pthread_cond_timedwait_2_0 (pthread_cond_2_0_t *cond,
 					 const struct timespec *abstime);
 extern int __pthread_cond_wait_2_0 (pthread_cond_2_0_t *cond,
 				    pthread_mutex_t *mutex);
+#endif
 
 extern int __pthread_getaffinity_np (pthread_t th, size_t cpusetsize,
 				     cpu_set_t *cpuset);