Initial code drop of version 0.153

Change-Id: I97d4765497db839471de6b10aa612bfaca110297

1 files changed, 130 insertions, 0 deletions

diff --git a/0.153/libelf/gelf_getrela.c b/0.153/libelf/gelf_getrela.c
new file mode 100644
index 00000000..0275c375
--- /dev/null
+++ b/0.153/libelf/gelf_getrela.c
@@ -0,0 +1,130 @@
+/* Get RELA relocation information at given index.
+   Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
+   This file is part of Red Hat elfutils.
+   Written by Ulrich Drepper <drepper@redhat.com>, 2000.
+
+   Red Hat elfutils is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by the
+   Free Software Foundation; version 2 of the License.
+
+   Red Hat elfutils 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with Red Hat elfutils; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+
+   In addition, as a special exception, Red Hat, Inc. gives You the
+   additional right to link the code of Red Hat elfutils with code licensed
+   under any Open Source Initiative certified open source license
+   (http://www.opensource.org/licenses/index.php) which requires the
+   distribution of source code with any binary distribution and to
+   distribute linked combinations of the two.  Non-GPL Code permitted under
+   this exception must only link to the code of Red Hat elfutils through
+   those well defined interfaces identified in the file named EXCEPTION
+   found in the source code files (the "Approved Interfaces").  The files
+   of Non-GPL Code may instantiate templates or use macros or inline
+   functions from the Approved Interfaces without causing the resulting
+   work to be covered by the GNU General Public License.  Only Red Hat,
+   Inc. may make changes or additions to the list of Approved Interfaces.
+   Red Hat's grant of this exception is conditioned upon your not adding
+   any new exceptions.  If you wish to add a new Approved Interface or
+   exception, please contact Red Hat.  You must obey the GNU General Public
+   License in all respects for all of the Red Hat elfutils code and other
+   code used in conjunction with Red Hat elfutils except the Non-GPL Code
+   covered by this exception.  If you modify this file, you may extend this
+   exception to your version of the file, but you are not obligated to do
+   so.  If you do not wish to provide this exception without modification,
+   you must delete this exception statement from your version and license
+   this file solely under the GPL without exception.
+
+   Red Hat elfutils is an included package of the Open Invention Network.
+   An included package of the Open Invention Network is a package for which
+   Open Invention Network licensees cross-license their patents.  No patent
+   license is granted, either expressly or impliedly, by designation as an
+   included package.  Should you wish to participate in the Open Invention
+   Network licensing program, please visit www.openinventionnetwork.com
+   <http://www.openinventionnetwork.com>.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gelf.h>
+#include <string.h>
+
+#include "libelfP.h"
+
+
+GElf_Rela *
+gelf_getrela (data, ndx, dst)
+     Elf_Data *data;
+     int ndx;
+     GElf_Rela *dst;
+{
+  Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data;
+  Elf_Scn *scn;
+  GElf_Rela *result;
+
+  if (data_scn == NULL)
+    return NULL;
+
+  if (unlikely (ndx < 0))
+    {
+      __libelf_seterrno (ELF_E_INVALID_INDEX);
+      return NULL;
+    }
+
+  if (unlikely (data_scn->d.d_type != ELF_T_RELA))
+    {
+      __libelf_seterrno (ELF_E_INVALID_HANDLE);
+      return NULL;
+    }
+
+  /* This is the one place where we have to take advantage of the fact
+     that an `Elf_Data' pointer is also a pointer to `Elf_Data_Scn'.
+     The interface is broken so that it requires this hack.  */
+  scn = data_scn->s;
+
+  rwlock_rdlock (scn->elf->lock);
+
+  if (scn->elf->class == ELFCLASS32)
+    {
+      /* We have to convert the data.  */
+      if (unlikely ((ndx + 1) * sizeof (Elf32_Rela) > data_scn->d.d_size))
+	{
+	  __libelf_seterrno (ELF_E_INVALID_INDEX);
+	  result = NULL;
+	}
+      else
+	{
+	  Elf32_Rela *src = &((Elf32_Rela *) data_scn->d.d_buf)[ndx];
+
+	  dst->r_offset = src->r_offset;
+	  dst->r_info = GELF_R_INFO (ELF32_R_SYM (src->r_info),
+				     ELF32_R_TYPE (src->r_info));
+	  dst->r_addend = src->r_addend;
+
+	  result = dst;
+	}
+    }
+  else
+    {
+      /* Simply copy the data after we made sure we are actually getting
+	 correct data.  */
+      if (unlikely ((ndx + 1) * sizeof (Elf64_Rela) > data_scn->d.d_size))
+	{
+	  __libelf_seterrno (ELF_E_INVALID_INDEX);
+	  result = NULL;
+	}
+      else
+	result = memcpy (dst, &((Elf64_Rela *) data_scn->d.d_buf)[ndx],
+			 sizeof (Elf64_Rela));
+    }
+
+  rwlock_unlock (scn->elf->lock);
+
+  return result;
+}