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authorUlrich Drepper <drepper@redhat.com>2000-05-07 21:23:56 +0000
committerUlrich Drepper <drepper@redhat.com>2000-05-07 21:23:56 +0000
commit45eca4d141c047950db48c69c8941163d0a61fcd (patch)
tree66035482a9beed5f14699227294ac902b32a5106 /sysdeps/generic/dl-cache.h
parentd89d0afad4551a808b15510795f965aed147a834 (diff)
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Update.
2000-05-06 Bruno Haible <haible@clisp.cons.org> * iconv/gconv_open.c (__gconv_open): If __gconv_find_transform returned != __GCONV_OK, there is nothing to clean up. 2000-05-06 Bruno Haible <haible@clisp.cons.org> * intl/tst-gettext.c (main): Disable possibly existing LC_CTYPE and OUTPUT_CHARSET environment variables. 2000-05-06 Andreas Jaeger <aj@suse.de> * sysdeps/generic/dl-cache.h (struct file_entry_new): New. (struct cache_file_new): New. (struct file_entry): New (moved from cache.c). (struct cache_file): New (moved from cache.c). * sysdeps/generic/dl-cache.c (SEARCH_CACHE): New macro, broken out from _dl_load_cache_lookup. (_dl_load_cache_lookup): Move search to SEARCH_CACHE macro, handle the different cache formats. New variable cache_new for new format. * elf/ldconfig.h: Change according to changes in cache.c and ldconfig.c; remove cache_libcmp; add opt_format. * elf/ldconfig.c: Include "dl-cache.h" and "dl-procinfo.h"; remove stuff that's defined in those headers. Add hwcap to struct lib_entry. (opt_format): New variable to select cache format. (options): Add format parameter. (is_hwcap): New function. (path_hwcap): New function. (parse_opt): Handle new format parameter. (search_dir): Handle hwcap, search also subdirectories with hwcap. * elf/cache.c (_GNU_SOURCE): Removed. Not needed anymore since ldconfig is part of glibc. Include dl-cache.h and remove stuff that's defined there. (struct cache_entry): Add new member hwcap. (print_entry): Print hwcap, cleanup a bit. (print_cache): Print new and old formats. (compare): Use _dl_cache_libcmp from dl-cache.h; handle hwcap. (save_cache): Save new and old formats. (add_to_cache): Handle hwcap. * sysdeps/generic/dl-cache.c (_dl_cache_libcmp): Moved from here... * sysdeps/generic/dl-cache.h (_dl_cache_libcmp): ...to here. * sysdeps/generic/dl-cache.c (LD_SO_CACHE): Moved from here... * sysdeps/generic/dl-cache.h (LD_SO_CACHE): ...to here. * sysdeps/generic/dl-cache.c (CACHEMAGIC): Moved from here... * sysdeps/generic/dl-cache.h (CACHEMAGIC): ...to here. 2000-05-05 Bruno Haible <haible@clisp.cons.org> * intl/dcigettext.c (alignof): New macro. (_nl_find_msg): Use it instead of __alignof__. Pass correct output buffer length to __gconv/iconv. If malloc (freemem_size) fails, set freemem_size to 0. 2000-05-05 Bruno Haible <haible@clisp.cons.org> * intl/dcigettext.c (dcigettext): Fix interpretation of tsearch return value.
Diffstat (limited to 'sysdeps/generic/dl-cache.h')
-rw-r--r--sysdeps/generic/dl-cache.h100
1 files changed, 99 insertions, 1 deletions
diff --git a/sysdeps/generic/dl-cache.h b/sysdeps/generic/dl-cache.h
index 579c261..4eb64cf 100644
--- a/sysdeps/generic/dl-cache.h
+++ b/sysdeps/generic/dl-cache.h
@@ -1,5 +1,5 @@
/* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
- Copyright (C) 1999 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000 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
@@ -21,3 +21,101 @@
#define _dl_cache_check_flags(flags) \
((flags) == 1 || (flags) == _DL_CACHE_DEFAULT_ID)
+
+
+#ifndef LD_SO_CACHE
+# define LD_SO_CACHE "/etc/ld.so.cache"
+#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]
+ new magic
+ 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 "1.0"
+
+
+struct file_entry_new
+{
+ int flags; /* This is 1 for an ELF library. */
+ unsigned int key, value; /* String table indices. */
+ unsigned long hwcap; /* Hwcap entry. */
+};
+
+struct cache_file_new
+{
+ char magic[sizeof CACHEMAGIC_NEW - 1];
+ char version[sizeof CACHE_VERSION - 1];
+ unsigned int nlibs; /* Number of entries. */
+ unsigned int len_strings; /* Size of string table. */
+ unsigned int unused[4]; /* Leave space for future extensions. */
+ struct file_entry_new libs[0]; /* Entries describing libraries. */
+ /* After this the string table of size len_strings is found. */
+};
+
+static int
+_dl_cache_libcmp (const char *p1, const char *p2)
+{
+ while (*p1 != '\0')
+ {
+ if (*p1 >= '0' && *p1 <= '9')
+ {
+ if (*p2 >= '0' && *p2 <= '9')
+ {
+ /* Must compare this numerically. */
+ int val1;
+ int val2;
+
+ val1 = *p1++ - '0';
+ val2 = *p2++ - '0';
+ while (*p1 >= '0' && *p1 <= '9')
+ val1 = val1 * 10 + *p1++ - '0';
+ while (*p2 >= '0' && *p2 <= '9')
+ val2 = val2 * 10 + *p2++ - '0';
+ if (val1 != val2)
+ return val1 - val2;
+ }
+ else
+ return 1;
+ }
+ else if (*p2 >= '0' && *p2 <= '9')
+ return -1;
+ else if (*p1 != *p2)
+ return *p1 - *p2;
+ else
+ {
+ ++p1;
+ ++p2;
+ }
+ }
+ return *p1 - *p2;
+}