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, 109 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/not-cancel.h b/REORG.TODO/sysdeps/unix/sysv/linux/not-cancel.h
new file mode 100644
index 0000000000..43959bad83
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/not-cancel.h
@@ -0,0 +1,109 @@
+/* Uncancelable versions of cancelable interfaces.  Linux/NPTL version.
+   Copyright (C) 2003-2017 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; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef NOT_CANCEL_H
+# define NOT_CANCEL_H
+
+#include <sysdep.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+/* Uncancelable open.  */
+#ifdef __NR_open
+# define open_not_cancel(name, flags, mode) \
+   INLINE_SYSCALL (open, 3, name, flags, mode)
+# define open_not_cancel_2(name, flags) \
+   INLINE_SYSCALL (open, 2, name, flags)
+#else
+# define open_not_cancel(name, flags, mode) \
+   INLINE_SYSCALL (openat, 4, AT_FDCWD, name, flags, mode)
+# define open_not_cancel_2(name, flags) \
+   INLINE_SYSCALL (openat, 3, AT_FDCWD, name, flags)
+#endif
+
+/* Uncancelable read.  */
+#define __read_nocancel(fd, buf, len) \
+  INLINE_SYSCALL (read, 3, fd, buf, len)
+
+/* Uncancelable write.  */
+#define __write_nocancel(fd, buf, len) \
+  INLINE_SYSCALL (write, 3, fd, buf, len)
+
+/* Uncancelable openat.  */
+#define openat_not_cancel(fd, fname, oflag, mode) \
+  INLINE_SYSCALL (openat, 4, fd, fname, oflag, mode)
+#define openat_not_cancel_3(fd, fname, oflag) \
+  INLINE_SYSCALL (openat, 3, fd, fname, oflag)
+#define openat64_not_cancel(fd, fname, oflag, mode) \
+  INLINE_SYSCALL (openat, 4, fd, fname, oflag | O_LARGEFILE, mode)
+#define openat64_not_cancel_3(fd, fname, oflag) \
+  INLINE_SYSCALL (openat, 3, fd, fname, oflag | O_LARGEFILE)
+
+/* Uncancelable close.  */
+#define __close_nocancel(fd) \
+  INLINE_SYSCALL (close, 1, fd)
+#define close_not_cancel(fd) \
+  __close_nocancel (fd)
+#define close_not_cancel_no_status(fd) \
+  (void) ({ INTERNAL_SYSCALL_DECL (err);				      \
+	    INTERNAL_SYSCALL (close, err, 1, (fd)); })
+
+/* Uncancelable read.  */
+#define read_not_cancel(fd, buf, n) \
+  __read_nocancel (fd, buf, n)
+
+/* Uncancelable write.  */
+#define write_not_cancel(fd, buf, n) \
+  __write_nocancel (fd, buf, n)
+
+/* Uncancelable writev.  */
+#define writev_not_cancel_no_status(fd, iov, n) \
+  (void) ({ INTERNAL_SYSCALL_DECL (err);				      \
+	    INTERNAL_SYSCALL (writev, err, 3, (fd), (iov), (n)); })
+
+/* Uncancelable fcntl.  */
+#define fcntl_not_cancel(fd, cmd, val) \
+  __fcntl_nocancel (fd, cmd, val)
+
+/* Uncancelable waitpid.  */
+#define __waitpid_nocancel(pid, stat_loc, options) \
+  INLINE_SYSCALL (wait4, 4, pid, stat_loc, options, NULL)
+#define waitpid_not_cancel(pid, stat_loc, options) \
+  __waitpid_nocancel(pid, stat_loc, options)
+
+/* Uncancelable pause.  */
+#define pause_not_cancel() \
+  ({ sigset_t set; 							     \
+     int __rc = INLINE_SYSCALL (rt_sigprocmask, 4, SIG_BLOCK, NULL, &set,    \
+				_NSIG / 8);				     \
+     if (__rc == 0)							     \
+       __rc = INLINE_SYSCALL (rt_sigsuspend, 2, &set, _NSIG / 8);	     \
+     __rc;								     \
+  })
+
+/* Uncancelable nanosleep.  */
+#define nanosleep_not_cancel(requested_time, remaining) \
+  INLINE_SYSCALL (nanosleep, 2, requested_time, remaining)
+
+/* Uncancelable sigsuspend.  */
+#define sigsuspend_not_cancel(set) \
+  INLINE_SYSCALL (rt_sigsuspend, 2, set, _NSIG / 8)
+
+#endif /* NOT_CANCEL_H  */