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-rw-r--r--elf/dl-object.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/elf/dl-object.c b/elf/dl-object.c
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+/* Storage management for the chain of loaded shared objects.
+Copyright (C) 1995 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <link.h>
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+
+/* List of objects currently loaded.  */
+struct link_map *_dl_loaded;
+
+/* Tail of that list which were loaded at startup.  */
+struct link_map *_dl_startup_loaded;
+
+/* Allocate a `struct link_map' for a new object being loaded,
+   and enter it into the _dl_loaded list.  */
+
+struct link_map *
+_dl_new_object (char *realname, const char *libname, int type)
+{
+  struct link_map *new = malloc (sizeof *new);
+  if (! new)
+    _dl_signal_error (ENOMEM, "can't open new object");
+
+  memset (new, 0, sizeof *new);
+  new->l_name = realname;
+  new->l_libname = libname;
+  new->l_type = type;
+
+  if (_dl_loaded == NULL)
+    {
+      new->l_prev = new->l_next = NULL;
+      _dl_loaded = new;
+    }
+  else
+    {
+      struct link_map *l = _dl_loaded;
+      while (l->l_next)
+	l = l->l_next;
+      new->l_prev = l;
+      new->l_next = NULL;
+      l->l_next = new;
+    }
+
+  return new;
+}