Update.

1999-06-09  Jakub Jelinek   <jj@ultra.linux.cz>

	* stdlib/longlong.h: gas changed sethi handling when without
	%hi(). Fix assembly.
	* sysdeps/generic/dl-cache.c (_dl_cache_lookup): Allow
	port specific cache id checks.
	* sysdeps/generic/dl-cache.h: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/dl-cache.h: New file.

3 files changed, 56 insertions, 6 deletions

diff --git a/sysdeps/generic/dl-cache.c b/sysdeps/generic/dl-cache.c
index 582afb5..36d3dc3 100644
--- a/sysdeps/generic/dl-cache.c
+++ b/sysdeps/generic/dl-cache.c
@@ -20,6 +20,7 @@
 #include <unistd.h>
 #include <elf/ldsodefs.h>
 #include <sys/mman.h>
+#include <dl-cache.h>
 
 /* System-dependent function to read a file's whole contents
    in the most convenient manner available.  */
@@ -48,9 +49,12 @@ struct cache_file
 static struct cache_file *cache;
 static size_t cachesize;
 
+/* 1 if cache_data + PTR points into the cache.  */
+#define _dl_cache_verify_ptr(ptr) (ptr < cachesize - sizeof *cache)
+
 /* This is the cache ID we expect.  Normally it is 3 for glibc linked
    binaries.  */
-int _dl_correct_cache_id = 3;
+int _dl_correct_cache_id = _DL_CACHE_DEFAULT_ID;
 
 /* Helper function which must match the one in ldconfig, so that
    we rely on the same sort order.  */
@@ -146,7 +150,7 @@ _dl_load_cache_lookup (const char *name)
   while (left <= right)
     {
       /* Make sure string table indices are not bogus before using them.  */
-      if (cache->libs[middle].key >= cachesize - sizeof *cache)
+      if (! _dl_cache_verify_ptr (cache->libs[middle].key))
 	{
 	  cmpres = 1;
 	  break;
@@ -177,7 +181,7 @@ _dl_load_cache_lookup (const char *name)
       while (middle > 0
 	     /* Make sure string table indices are not bogus before
                 using them.  */
-	     && cache->libs[middle - 1].key < cachesize - sizeof *cache
+	     && _dl_cache_verify_ptr (cache->libs[middle - 1].key)
 	     /* Actually compare the entry.  */
 	     && (_dl_cache_libcmp (name,
 				   cache_data + cache->libs[middle - 1].key)
@@ -193,15 +197,15 @@ _dl_load_cache_lookup (const char *name)
 	      /* We haven't seen this string so far.  Test whether the
 		 index is ok and whether the name matches.  Otherwise
 		 we are done.  */
-	      && (cache->libs[middle].key >= cachesize - sizeof *cache
+	      && (! _dl_cache_verify_ptr (cache->libs[middle].key)
 		  || (_dl_cache_libcmp (name,
 					cache_data + cache->libs[middle].key)
 		      != 0)))
 	    break;
 
 	  flags = cache->libs[middle].flags;
-	  if ((flags == 1 || flags == 3)
-	      && cache->libs[middle].value < cachesize - sizeof *cache)
+	  if (_dl_cache_check_flags (flags)
+	      && _dl_cache_verify_ptr (cache->libs[middle].value))
 	    {
 	      if (best == NULL || flags == _dl_correct_cache_id)
 		{
diff --git a/sysdeps/generic/dl-cache.h b/sysdeps/generic/dl-cache.h
new file mode 100644
index 0000000..579c261
--- /dev/null
+++ b/sysdeps/generic/dl-cache.h
@@ -0,0 +1,23 @@
+/* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
+   Copyright (C) 1999 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#define _DL_CACHE_DEFAULT_ID	3
+
+#define _dl_cache_check_flags(flags)			\
+  ((flags) == 1 || (flags) == _DL_CACHE_DEFAULT_ID)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/dl-cache.h b/sysdeps/unix/sysv/linux/sparc/sparc64/dl-cache.h
new file mode 100644
index 0000000..2d074ff
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/dl-cache.h
@@ -0,0 +1,23 @@
+/* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
+   Copyright (C) 1999 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#define _DL_CACHE_DEFAULT_ID	0x103
+
+#define _dl_cache_check_flags(flags)			\
+  ((flags) == _DL_CACHE_DEFAULT_ID)