1 files changed, 132 insertions, 0 deletions
diff --git a/nptl/libc-pthread-secondary.c b/nptl/libc-pthread-secondary.c
new file mode 100644
index 0000000000..71ceea2036
--- /dev/null
+++ b/nptl/libc-pthread-secondary.c
@@ -0,0 +1,132 @@
+/* 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
+# define pthread_mutex_lock __rename_pthread_mutex_lock
+# define pthread_mutex_unlock __rename_pthread_mutex_unlock
+# include <safe-fatal.h>
+# include <errno.h>
+# undef pthread_mutex_lock
+# undef pthread_mutex_unlock
+
+static void __attribute__ ((unused))
+pthread_secondary_void (void)
+{
+}
+
+static int __attribute__ ((unused))
+pthread_secondary_zero (void)
+{
+  return 0;
+}
+
+static int __attribute__ ((unused))
+pthread_secondary_einval (void)
+{
+  return EINVAL;
+}
+
+/* Use STB_SECONDARY on pthread functions in libc so that they are used
+   only when libpthread is not used.  */
+
+asm (".secondary _pthread_cleanup_push_defer");
+strong_alias (pthread_secondary_void, _pthread_cleanup_push_defer)
+
+asm (".secondary _pthread_cleanup_pop_restore");
+
+void
+_pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer *buffer,
+			      int execute)
+{
+  if (execute)
+    buffer->__routine (buffer->__arg);
+}
+
+asm (".secondary __pthread_cleanup_upto");
+strong_alias (pthread_secondary_void, __pthread_cleanup_upto)
+
+asm (".secondary __pthread_getspecific");
+strong_alias (pthread_secondary_zero, __pthread_getspecific)
+
+asm (".secondary __pthread_setspecific");
+strong_alias (pthread_secondary_einval, __pthread_setspecific)
+
+asm (".secondary __pthread_key_create");
+strong_alias (pthread_secondary_einval, __pthread_key_create)
+
+asm (".secondary __pthread_mutex_lock");
+strong_alias (pthread_secondary_zero, __pthread_mutex_lock)
+
+asm (".secondary __pthread_mutex_unlock");
+strong_alias (pthread_secondary_zero, __pthread_mutex_unlock)
+
+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)
+
+asm (".secondary __pthread_rwlock_rdlock");
+strong_alias (pthread_secondary_zero, __pthread_rwlock_rdlock)
+
+asm (".secondary __pthread_rwlock_unlock");
+strong_alias (pthread_secondary_zero, __pthread_rwlock_unlock)
+
+asm (".secondary __pthread_rwlock_wrlock");
+strong_alias (pthread_secondary_zero, __pthread_rwlock_wrlock)
+
+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.  */
+  typedef __typeof (__safe_fatal) *fn_noreturn __attribute ((noreturn));
+  fn_noreturn fn = (fn_noreturn) __safe_fatal;
+  fn ();
+}
+
+# ifndef SHARED
+asm (".secondary __pthread_setcancelstate");
+strong_alias (pthread_secondary_zero, __pthread_setcancelstate)
+
+asm (".secondary pthread_mutex_lock");
+strong_alias (__pthread_mutex_lock, pthread_mutex_lock)
+
+asm (".secondary pthread_mutex_unlock");
+strong_alias (__pthread_mutex_unlock, pthread_mutex_unlock)
+
+asm (".secondary __pthread_rwlock_destroy");
+strong_alias (pthread_secondary_zero, __pthread_rwlock_destroy)
+
+asm (".secondary __pthread_rwlock_init");
+strong_alias (pthread_secondary_zero, __pthread_rwlock_init)
+# endif
+#endif