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, 270 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/xstatconv.c b/REORG.TODO/sysdeps/unix/sysv/linux/xstatconv.c
new file mode 100644
index 0000000000..e307827b97
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/xstatconv.c
@@ -0,0 +1,270 @@
+/* Convert between the kernel's `struct stat' format, and libc's.
+   Copyright (C) 1991-2017 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 <errno.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+#include <kernel-features.h>
+
+#ifdef STAT_IS_KERNEL_STAT
+
+/* Dummy.  */
+struct kernel_stat;
+
+#else
+
+#include <string.h>
+
+
+#if XSTAT_IS_XSTAT64
+int
+__xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
+{
+  switch (vers)
+    {
+    case _STAT_VER_KERNEL:
+      /* Nothing to do.  The struct is in the form the kernel expects.
+         We should have short-circuted before we got here, but for
+         completeness... */
+      *(struct kernel_stat *) ubuf = *kbuf;
+      break;
+
+    case _STAT_VER_LINUX:
+      {
+	struct stat *buf = ubuf;
+
+	/* Convert to current kernel version of `struct stat'.  */
+	buf->st_dev = kbuf->st_dev;
+#ifdef _HAVE_STAT___PAD1
+	buf->__pad1 = 0;
+#endif
+	buf->st_ino = kbuf->st_ino;
+	buf->st_mode = kbuf->st_mode;
+	buf->st_nlink = kbuf->st_nlink;
+	buf->st_uid = kbuf->st_uid;
+	buf->st_gid = kbuf->st_gid;
+	buf->st_rdev = kbuf->st_rdev;
+#ifdef _HAVE_STAT___PAD2
+	buf->__pad2 = 0;
+#endif
+	buf->st_size = kbuf->st_size;
+	buf->st_blksize = kbuf->st_blksize;
+	buf->st_blocks = kbuf->st_blocks;
+#ifdef _HAVE_STAT_NSEC
+	buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
+	buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
+	buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
+	buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
+	buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
+	buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
+#else
+	buf->st_atime = kbuf->st_atime;
+	buf->st_mtime = kbuf->st_mtime;
+	buf->st_ctime = kbuf->st_ctime;
+#endif
+#ifdef _HAVE_STAT___UNUSED1
+	buf->__glibc_reserved1 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED2
+	buf->__glibc_reserved2 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED3
+	buf->__glibc_reserved3 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED4
+	buf->__glibc_reserved4 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED5
+	buf->__glibc_reserved5 = 0;
+#endif
+      }
+      break;
+
+    default:
+      return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+    }
+
+  return 0;
+}
+#endif
+
+int
+__xstat64_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
+{
+#if XSTAT_IS_XSTAT64
+  return __xstat_conv (vers, kbuf, ubuf);
+#else
+  switch (vers)
+    {
+    case _STAT_VER_LINUX:
+      {
+	struct stat64 *buf = ubuf;
+
+	/* Convert to current kernel version of `struct stat64'.  */
+	buf->st_dev = kbuf->st_dev;
+#ifdef _HAVE_STAT64___PAD1
+	buf->__pad1 = 0;
+#endif
+	buf->st_ino = kbuf->st_ino;
+#ifdef _HAVE_STAT64___ST_INO
+	buf->__st_ino = kbuf->st_ino;
+#endif
+	buf->st_mode = kbuf->st_mode;
+	buf->st_nlink = kbuf->st_nlink;
+	buf->st_uid = kbuf->st_uid;
+	buf->st_gid = kbuf->st_gid;
+	buf->st_rdev = kbuf->st_rdev;
+#ifdef _HAVE_STAT64___PAD2
+	buf->__pad2 = 0;
+#endif
+	buf->st_size = kbuf->st_size;
+	buf->st_blksize = kbuf->st_blksize;
+	buf->st_blocks = kbuf->st_blocks;
+#ifdef _HAVE_STAT64_NSEC
+	buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
+	buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
+	buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
+	buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
+	buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
+	buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
+#else
+	buf->st_atime = kbuf->st_atime;
+	buf->st_mtime = kbuf->st_mtime;
+	buf->st_ctime = kbuf->st_ctime;
+#endif
+#ifdef _HAVE_STAT64___UNUSED1
+	buf->__glibc_reserved1 = 0;
+#endif
+#ifdef _HAVE_STAT64___UNUSED2
+	buf->__glibc_reserved2 = 0;
+#endif
+#ifdef _HAVE_STAT64___UNUSED3
+	buf->__glibc_reserved3 = 0;
+#endif
+#ifdef _HAVE_STAT64___UNUSED4
+	buf->__glibc_reserved4 = 0;
+#endif
+#ifdef _HAVE_STAT64___UNUSED5
+	buf->__glibc_reserved5 = 0;
+#endif
+      }
+      break;
+
+      /* If struct stat64 is different from struct stat then
+	 _STAT_VER_KERNEL does not make sense.  */
+    case _STAT_VER_KERNEL:
+    default:
+      return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+    }
+
+  return 0;
+#endif
+}
+
+int
+__xstat32_conv (int vers, struct stat64 *kbuf, struct stat *buf)
+{
+  switch (vers)
+    {
+    case _STAT_VER_LINUX:
+      {
+	/* Convert current kernel version of `struct stat64' to
+           `struct stat'.  */
+	buf->st_dev = kbuf->st_dev;
+#ifdef _HAVE_STAT___PAD1
+	buf->__pad1 = 0;
+#endif
+#ifdef _HAVE_STAT64___ST_INO
+# if !__ASSUME_ST_INO_64_BIT
+	if (kbuf->st_ino == 0)
+	  buf->st_ino = kbuf->__st_ino;
+	else
+# endif
+	  {
+	    buf->st_ino = kbuf->st_ino;
+	    if (sizeof (buf->st_ino) != sizeof (kbuf->st_ino)
+		&& buf->st_ino != kbuf->st_ino)
+	      return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
+	  }
+#else
+	buf->st_ino = kbuf->st_ino;
+	if (sizeof (buf->st_ino) != sizeof (kbuf->st_ino)
+	    && buf->st_ino != kbuf->st_ino)
+	  return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
+#endif
+	buf->st_mode = kbuf->st_mode;
+	buf->st_nlink = kbuf->st_nlink;
+	buf->st_uid = kbuf->st_uid;
+	buf->st_gid = kbuf->st_gid;
+	buf->st_rdev = kbuf->st_rdev;
+#ifdef _HAVE_STAT___PAD2
+	buf->__pad2 = 0;
+#endif
+	buf->st_size = kbuf->st_size;
+	/* Check for overflow.  */
+	if (sizeof (buf->st_size) != sizeof (kbuf->st_size)
+	    && buf->st_size != kbuf->st_size)
+	  return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
+	buf->st_blksize = kbuf->st_blksize;
+	buf->st_blocks = kbuf->st_blocks;
+	/* Check for overflow.  */
+	if (sizeof (buf->st_blocks) != sizeof (kbuf->st_blocks)
+	    && buf->st_blocks != kbuf->st_blocks)
+	  return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
+#ifdef _HAVE_STAT_NSEC
+	buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
+	buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
+	buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
+	buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
+	buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
+	buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
+#else
+	buf->st_atime = kbuf->st_atime;
+	buf->st_mtime = kbuf->st_mtime;
+	buf->st_ctime = kbuf->st_ctime;
+#endif
+
+#ifdef _HAVE_STAT___UNUSED1
+	buf->__glibc_reserved1 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED2
+	buf->__glibc_reserved2 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED3
+	buf->__glibc_reserved3 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED4
+	buf->__glibc_reserved4 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED5
+	buf->__glibc_reserved5 = 0;
+#endif
+      }
+      break;
+
+      /* If struct stat64 is different from struct stat then
+	 _STAT_VER_KERNEL does not make sense.  */
+    case _STAT_VER_KERNEL:
+    default:
+      return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+    }
+
+  return 0;
+}
+
+#endif