summaryrefslogtreecommitdiff
path: root/REORG.TODO/sysdeps/generic/dl-cache.h
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/sysdeps/generic/dl-cache.h')
-rw-r--r--REORG.TODO/sysdeps/generic/dl-cache.h104
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;