1 files changed, 110 insertions, 0 deletions
diff --git a/trunk/src/rtld/dl-lookup.c b/trunk/src/rtld/dl-lookup.c
new file mode 100644
index 0000000..dd050c9
--- /dev/null
+++ b/trunk/src/rtld/dl-lookup.c
@@ -0,0 +1,110 @@
+/* Look up a symbol in the loaded objects.
+   Copyright (C) 1995-2005, 2006, 2007, 2009, 2010
+   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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* This file is based on the original eglibc-2.13 libc/elf/dl-lookup.c
+   code.
+
+   It has been split into two pieces dl-lookup.c and dl-lookupX.c,
+   the purpose of the split is to enable both 32-bit and 64-bit ELF
+   processing in the same application.  This file contains the ELF
+   size neutral routines.
+ */
+
+#include <config.h>
+#include <alloca.h>
+#include <libintl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <dl-hash.h>
+
+#include <assert.h>
+
+#include <errno.h>
+
+#include <elf.h>
+
+#include "prelinktab.h"
+#include "reloc.h"
+
+#include "rtld.h"
+
+struct unique_sym_table * _ns_unique_sym_table = NULL;
+
+/* This file is from eglibc 2.13, libc/elf/dl-lookup.c
+   It has been split into two pieces dl-lookup.c and dl-lookupX.c,
+   the purpose of the split is to enable both 32-bit and 64-bit ELF
+   processing in the same application.  This file contains the common
+   routines ... and is the entry to the overall set of files.
+ */
+
+/* We need this string more than once.  */
+static const char undefined_msg[] = "undefined symbol: ";
+
+#define make_string(string, rest...) \
+  ({									      \
+    const char *all[] = { string, ## rest };				      \
+    size_t len, cnt;							      \
+    char *result, *cp;							      \
+									      \
+    len = 1;								      \
+    for (cnt = 0; cnt < sizeof (all) / sizeof (all[0]); ++cnt)		      \
+      len += strlen (all[cnt]);						      \
+									      \
+    cp = result = alloca (len);						      \
+    for (cnt = 0; cnt < sizeof (all) / sizeof (all[0]); ++cnt)		      \
+      cp = __stpcpy (cp, all[cnt]);					      \
+									      \
+    result;								      \
+  })
+
+static uint_fast32_t
+dl_new_hash (const char *s)
+{
+  uint_fast32_t h = 5381;
+  unsigned char c = *s;
+  for (c = *s; c != '\0'; c = *++s)
+    h = h * 33 + c;
+  return h & 0xffffffff;
+}
+
+#undef RTLD_ELF_SIZE
+#define RTLD_ELF_SIZE 32
+#include "dl-lookupX.h"
+
+#undef RTLD_ELF_SIZE
+#define RTLD_ELF_SIZE 64
+#include "dl-lookupX.h"
+
+#undef RTLD_ELF_SIZE
+
+void
+rtld_setup_hash (struct ldlibs_link_map *map)
+{
+   if (map)
+    {
+      if (map->elfclass == ELFCLASS32)
+         rtld_setup_hash32(map);
+      else if (map->elfclass == ELFCLASS64)
+         rtld_setup_hash64(map);         
+      else
+         _dl_signal_error(EINVAL, map->l_name, NULL, "elfclass is not defined 32-bit or 64-bit!");
+    }
+}