Update.

1998-09-06 09:00  Ulrich Drepper  <drepper@cygnus.com>

	* version.h (VERSION): Bump to 2.0.96.

	Rewrite runtime linker to be truly thread-safe.  There is now no
	global variable specifying the scope.  We create all needed
	scopes at the time the link maps are created.
	* elf/Versions [GLIBC_2.1]: Add _dl_loaded and _dl_main_searchlist.
	* elf/link.h: Add struct r_scope_elem and use this for l_searchlist,
	l_symbolic_searchlist, l_scope, and l_local_scope elements in
	struct link_map.
	* elf/dl-close.c: Rewritten accordingly.
	* elf/dl-deps.c: Likewise.
	* elf/dl-error.c: Likewise.
	* elf/dl-init.c: Likewise.
	* elf/dl-load.c: Likewise.
	* elf/dl-lookup.c: Likewise.
	* elf/dl-object.c: Likewise.
	* elf/dl-open.c: Likewise.
	* elf/dl-reloc.c: Likewise.
	* elf/dl-runtime.c: Likewise.
	* elf/dl-support.c: Likewise.
	* elf/dl-symbol.c: Likewise.
	* elf/dl-version.c: Likewise.
	* elf/dlfcn.h: Likewise.
	* elf/dlsym.c: Likewise.
	* elf/dlvsym.c: Likewise.
	* elf/ldsodefs.h: Likewise.
	* elf/rtld.c: Likewise.
	* iconv/gconv_dl.c: Likewise.
	* nss/nsswitch.c: Likewise.
	* sysdeps/i386/dl-machine.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/dl-librecon.h: Likewise.

1 files changed, 12 insertions, 5 deletions

diff --git a/elf/dlfcn.h b/elf/dlfcn.h
index 715e1783cf..d2a27b85a2 100644
--- a/elf/dlfcn.h
+++ b/elf/dlfcn.h
@@ -21,16 +21,23 @@
 #define	_DLFCN_H 1
 
 #include <features.h>
+#define __need_NULL
+#include <stddef.h>
 
 /* Collect various system dependand definitions and declarations.  */
 #include <bits/dlfcn.h>
 
-/* If the first argument of `dlsym' is set to RTLD_NEXT the run-time
-   address of the symbol called NAME in the next shared object is
-   returned.  The "next" relation is defined by the order the shared
-   objects were loaded.  */
+/* If the first argument of `dlsym' or `dlvsym' is set to RTLD_NEXT
+   the run-time address of the symbol called NAME in the next shared
+   object is returned.  The "next" relation is defined by the order
+   the shared objects were loaded.  */
 #define RTLD_NEXT	((void *) -1l)
 
+/* If the first argument to `dlsym' or `dlvsym' is set to RTLD_DEFAULT
+   the run-time address of the symbol called NAME in the global scope
+   is returned.  */
+#define RTLD_DEFAULT	NULL
+
 __BEGIN_DECLS
 
 /* Open the shared object FILE and map it in; return a handle that can be
@@ -57,6 +64,7 @@ extern void *dlvsym __P ((void *__handle, __const char *__name,
    the error string so that a following call returns null.  */
 extern char *dlerror __P ((void));
 
+#ifdef __USE_GNU
 /* Fill in *INFO with the following information about ADDRESS.
    Returns 0 iff no shared object's segments contain that address.  */
 typedef struct
@@ -68,7 +76,6 @@ typedef struct
   } Dl_info;
 extern int dladdr __P ((const void *__address, Dl_info *__info));
 
-#ifdef __USE_GNU
 /* To support profiling of shared objects it is a good idea to call
    the function found using `dlsym' using the following macro since
    these calls do not use the PLT.  But this would mean the dynamic