Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 0 insertions, 106 deletions

diff --git a/nptl/sem_wait.c b/nptl/sem_wait.c
deleted file mode 100644
index 625bf08c83..0000000000
--- a/nptl/sem_wait.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/* sem_wait -- wait on a semaphore.  Generic futex-using version.
-   Copyright (C) 2003-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Paul Mackerras <paulus@au.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/>.  */
-
-#include <lowlevellock.h>	/* lll_futex* used by the old code.  */
-#include "sem_waitcommon.c"
-
-int
-__new_sem_wait (sem_t *sem)
-{
-  /* We need to check whether we need to act upon a cancellation request here
-     because POSIX specifies that cancellation points "shall occur" in
-     sem_wait and sem_timedwait, which also means that they need to check
-     this regardless whether they block or not (unlike "may occur"
-     functions).  See the POSIX Rationale for this requirement: Section
-     "Thread Cancellation Overview" [1] and austin group issue #1076 [2]
-     for thoughs on why this may be a suboptimal design.
-
-     [1] http://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_xsh_chap02.html
-     [2] http://austingroupbugs.net/view.php?id=1076 for thoughts on why this
-   */
-  __pthread_testcancel ();
-
-  if (__new_sem_wait_fast ((struct new_sem *) sem, 0) == 0)
-    return 0;
-  else
-    return __new_sem_wait_slow((struct new_sem *) sem, NULL);
-}
-versioned_symbol (libpthread, __new_sem_wait, sem_wait, GLIBC_2_1);
-
-#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
-int
-attribute_compat_text_section
-__old_sem_wait (sem_t *sem)
-{
-  int *futex = (int *) sem;
-  int err;
-
-  do
-    {
-      if (atomic_decrement_if_positive (futex) > 0)
-	return 0;
-
-      /* Enable asynchronous cancellation.  Required by the standard.  */
-      int oldtype = __pthread_enable_asynccancel ();
-
-      /* Always assume the semaphore is shared.  */
-      err = lll_futex_wait (futex, 0, LLL_SHARED);
-
-      /* Disable asynchronous cancellation.  */
-      __pthread_disable_asynccancel (oldtype);
-    }
-  while (err == 0 || err == -EWOULDBLOCK);
-
-  __set_errno (-err);
-  return -1;
-}
-
-compat_symbol (libpthread, __old_sem_wait, sem_wait, GLIBC_2_0);
-#endif
-
-int
-__new_sem_trywait (sem_t *sem)
-{
-  /* We must not fail spuriously, so require a definitive result even if this
-     may lead to a long execution time.  */
-  if (__new_sem_wait_fast ((struct new_sem *) sem, 1) == 0)
-    return 0;
-  __set_errno (EAGAIN);
-  return -1;
-}
-versioned_symbol (libpthread, __new_sem_trywait, sem_trywait, GLIBC_2_1);
-#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
-int
-__old_sem_trywait (sem_t *sem)
-{
-  int *futex = (int *) sem;
-  int val;
-
-  if (*futex > 0)
-    {
-      val = atomic_decrement_if_positive (futex);
-      if (val > 0)
-	return 0;
-    }
-
-  __set_errno (EAGAIN);
-  return -1;
-}
-compat_symbol (libpthread, __old_sem_trywait, sem_trywait, GLIBC_2_0);
-#endif