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, 104 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/generic/dl-cache.h b/REORG.TODO/sysdeps/generic/dl-cache.h
new file mode 100644
index 0000000000..1f0b8f629d
--- /dev/null
+++ b/REORG.TODO/sysdeps/generic/dl-cache.h
@@ -0,0 +1,104 @@
+/* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
+   Copyright (C) 1999-2017 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 <stdint.h>
+
+#ifndef _DL_CACHE_DEFAULT_ID
+# define _DL_CACHE_DEFAULT_ID	3
+#endif
+
+#ifndef _dl_cache_check_flags
+# define _dl_cache_check_flags(flags)			\
+  ((flags) == 1 || (flags) == _DL_CACHE_DEFAULT_ID)
+#endif
+
+#ifndef LD_SO_CACHE
+# define LD_SO_CACHE SYSCONFDIR "/ld.so.cache"
+#endif
+
+#ifndef add_system_dir
+# define add_system_dir(dir) add_dir (dir)
+#endif
+
+#define CACHEMAGIC "ld.so-1.7.0"
+
+/* libc5 and glibc 2.0/2.1 use the same format.  For glibc 2.2 another
+   format has been added in a compatible way:
+   The beginning of the string table is used for the new table:
+	old_magic
+	nlibs
+	libs[0]
+	...
+	libs[nlibs-1]
+	pad, new magic needs to be aligned
+	     - this is string[0] for the old format
+	new magic - this is string[0] for the new format
+	newnlibs
+	...
+	newlibs[0]
+	...
+	newlibs[newnlibs-1]
+	string 1
+	string 2
+	...
+*/
+struct file_entry
+{
+  int flags;		/* This is 1 for an ELF library.  */
+  unsigned int key, value; /* String table indices.  */
+};
+
+struct cache_file
+{
+  char magic[sizeof CACHEMAGIC - 1];
+  unsigned int nlibs;
+  struct file_entry libs[0];
+};
+
+#define CACHEMAGIC_NEW "glibc-ld.so.cache"
+#define CACHE_VERSION "1.1"
+#define CACHEMAGIC_VERSION_NEW CACHEMAGIC_NEW CACHE_VERSION
+
+
+struct file_entry_new
+{
+  int32_t flags;		/* This is 1 for an ELF library.  */
+  uint32_t key, value;		/* String table indices.  */
+  uint32_t osversion;		/* Required OS version.	 */
+  uint64_t hwcap;		/* Hwcap entry.	 */
+};
+
+struct cache_file_new
+{
+  char magic[sizeof CACHEMAGIC_NEW - 1];
+  char version[sizeof CACHE_VERSION - 1];
+  uint32_t nlibs;		/* Number of entries.  */
+  uint32_t len_strings;		/* Size of string table. */
+  uint32_t unused[5];		/* Leave space for future extensions
+				   and align to 8 byte boundary.  */
+  struct file_entry_new libs[0]; /* Entries describing libraries.  */
+  /* After this the string table of size len_strings is found.	*/
+};
+
+/* Used to align cache_file_new.  */
+#define ALIGN_CACHE(addr)				\
+(((addr) + __alignof__ (struct cache_file_new) -1)	\
+ & (~(__alignof__ (struct cache_file_new) - 1)))
+
+extern int _dl_cache_libcmp (const char *p1, const char *p2)
+     internal_function attribute_hidden;