1 files changed, 57 insertions, 33 deletions

diff --git a/elf/dlsym.c b/elf/dlsym.c
index d05619b..1072f16 100644
--- a/elf/dlsym.c
+++ b/elf/dlsym.c
@@ -22,47 +22,71 @@
 #include <dlfcn.h>
 #include <setjmp.h>
 
-
-void *
-dlsym (void *handle, const char *name)
+struct dlsym_args
 {
-  ElfW(Addr) caller = (ElfW(Addr)) __builtin_return_address (0);
+  /* The arguments to dlsym_doit.  */
+  void *handle;
+  const char *name;
+  struct r_found_version version;
+  ElfW(Addr) caller;
+  /* The return values of dlsym_doit.  */
   ElfW(Addr) loadbase;
-  const ElfW(Sym) *ref = NULL;
-  void doit (void)
+  const ElfW(Sym) *ref;
+};
+
+
+static void
+dlsym_doit (void *a)
+{
+  struct dlsym_args *args = (struct dlsym_args *) a;
+  args->ref = NULL;
+
+  if (args->handle == NULL)
+    /* Search the global scope.  */
+    args->loadbase = _dl_lookup_symbol (args->name, &args->ref,
+					&(_dl_global_scope
+					  ?: _dl_default_scope)[2],
+					NULL, 0);
+  else if (args->handle == RTLD_NEXT)
     {
-      if (handle == NULL)
-	/* Search the global scope.  */
-	loadbase = _dl_lookup_symbol
-	  (name, &ref, &(_dl_global_scope ?: _dl_default_scope)[2], NULL, 0);
-      else if (handle == RTLD_NEXT)
-	{
-	  struct link_map *l, *match;
+      struct link_map *l, *match;
 
-	  /* Find the highest-addressed object that CALLER is not below.  */
-	  match = NULL;
-	  for (l = _dl_loaded; l; l = l->l_next)
-	    if (caller >= l->l_addr && (!match || match->l_addr < l->l_addr))
-	      match = l;
+      /* Find the highest-addressed object that CALLER is not below.  */
+      match = NULL;
+      for (l = _dl_loaded; l; l = l->l_next)
+	if (args->caller >= l->l_addr && (!match || match->l_addr < l->l_addr))
+	  match = l;
 
-	  if (! match)
-	    _dl_signal_error (0, NULL, _("\
+      if (! match)
+	_dl_signal_error (0, NULL, _("\
 RTLD_NEXT used in code not dynamically loaded"));
 
-	  l = match;
-	  while (l->l_loader)
-	    l = l->l_loader;
+      l = match;
+      while (l->l_loader)
+	l = l->l_loader;
 
-	  loadbase = _dl_lookup_symbol_skip (name, &ref, &_dl_loaded, NULL, l);
-	}
-      else
-	{
-	  /* Search the scope of the given object.  */
-	  struct link_map *map = handle;
-	  struct link_map *mapscope[2] = { map, NULL };
-	  loadbase = _dl_lookup_symbol (name, &ref, mapscope, map->l_name, 0);
-	}
+      args->loadbase = _dl_lookup_symbol_skip (args->name, &args->ref,
+					       &_dl_loaded, NULL, l);
     }
+  else
+    {
+      /* Search the scope of the given object.  */
+      struct link_map *map = args->handle;
+      struct link_map *mapscope[2] = { map, NULL };
+      args->loadbase = _dl_lookup_symbol (args->name, &args->ref, mapscope,
+					  map->l_name, 0);
+    }
+}
+
+
+void *
+dlsym (void *handle, const char *name)
+{
+  struct dlsym_args args;
+  args.caller = (ElfW(Addr)) __builtin_return_address (0);
+  args.handle = handle;
+  args.name = name;
 
-  return _dlerror_run (doit) ? NULL : (void *) (loadbase + ref->st_value);
+  return (_dlerror_run (dlsym_doit, &args)
+	  ? NULL : (void *) (args.loadbase + args.ref->st_value));
 }