From 5f21997b9d6a49ddbed85b044e2be7b182c095a2 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Mon, 18 Oct 2004 23:17:46 +0000
Subject: Update.

2004-10-18  Jakub Jelinek  <jakub@redhat.com>

	* elf/dl-libc.c (__libc_dlsym_private, __libc_register_dl_open_hook):
	New functions.
	(__libc_dlopen_mode): Call __libc_register_dl_open_hook and
	__libc_register_dlfcn_hook.
	* dlfcn/Makefile (routines, elide-routines.os): Set.
	Add rules to build and test tststatic2.
	* dlfcn/tststatic2.c: New test.
	* dlfcn/modstatic2.c: New test module.
	* dlfcn/dladdr.c: Call _dlfcn_hook from libdl.so if not NULL.
	Define __ prefixed routine in libc.a and in libdl.a just call it.
	* dlfcn/dladdr1.c: Likewise.
	* dlfcn/dlclose.c: Likewise.
	* dlfcn/dlerror.c: Likewise.
	* dlfcn/dlinfo.c: Likewise.
	* dlfcn/dlmopen.c: Likewise.
	* dlfcn/dlopen.c: Likewise.
	* dlfcn/dlopenold.c: Likewise.
	* dlfcn/dlsym.c: Likewise.
	* dlfcn/dlvsym.c: Likewise.
	* dlfcn/sdladdr.c: New file.
	* dlfcn/sdladdr1.c: New file.
	* dlfcn/sdlclose.c: New file.
	* dlfcn/sdlerror.c: New file.
	* dlfcn/sdlinfo.c: New file.
	* dlfcn/sdlopen.c: New file.
	* dlfcn/sdlsym.c: New file.
	* dlfcn/sdlvsym.c: New file.
	* dlfcn/Versions (libdl): Export _dlfcn_hook@GLIBC_PRIVATE.
	* include/dlfcn.h (DL_CALLER_DECL, DL_CALLER RETURN_ADDRESS): Define.
	(struct dlfcn_hook): New type.
	(_dlfcn_hook): New extern decl.
	(__dlopen, __dlclose, __dlsym, __dlerror, __dladdr, __dladdr1,
	__dlinfo, __dlmopen, __libc_dlsym_private,
	__libc_register_dl_open_hook, __libc_register_dlfcn_hook): New
	prototypes.
	(__dlvsym): Use DL_CALLER_DECL.
	* include/libc-symbols.h: Define libdl_hidden_proto and friends.

	* malloc/arena.c (_dl_open_hook): Extern decl.
	(ptmalloc_init): Don't call _dl_addr when dlopened from statically
	linked programs but don't use brk for them either.
---
 dlfcn/dlvsym.c | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

(limited to 'dlfcn/dlvsym.c')

diff --git a/dlfcn/dlvsym.c b/dlfcn/dlvsym.c
index 2486845..9f12764 100644
--- a/dlfcn/dlvsym.c
+++ b/dlfcn/dlvsym.c
@@ -22,6 +22,17 @@
 
 #include <ldsodefs.h>
 
+#if !defined SHARED && defined IS_IN_libdl
+
+void *
+weak_function
+dlvsym (void *handle, const char *name, const char *version_str)
+{
+  return __dlvsym (handle, name, version_str, RETURN_ADDRESS (0));
+}
+
+#else
+
 struct dlvsym_args
 {
   /* The arguments to dlvsym_doit.  */
@@ -44,13 +55,18 @@ dlvsym_doit (void *a)
 }
 
 void *
-__dlvsym (void *handle, const char *name, const char *version_str)
+__dlvsym (void *handle, const char *name, const char *version_str
+	  DL_CALLER_DECL)
 {
-  struct dlvsym_args args;
+# ifdef SHARED
+  if (__builtin_expect (_dlfcn_hook != NULL, 0))
+    return _dlfcn_hook->dlvsym (handle, name, version_str, DL_CALLER);
+# endif
 
+  struct dlvsym_args args;
   args.handle = handle;
   args.name = name;
-  args.who = RETURN_ADDRESS (0);
+  args.who = DL_CALLER;
   args.version = version_str;
 
   /* Protect against concurrent loads and unloads.  */
@@ -62,4 +78,7 @@ __dlvsym (void *handle, const char *name, const char *version_str)
 
   return result;
 }
+# ifdef SHARED
 weak_alias (__dlvsym, dlvsym)
+# endif
+#endif
-- 
cgit v1.1