Switch from ELF CPU-specific to OS-specific DT_ tags.

tools/relocation_packer/src/elf_file.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "elf_file.h"
 
 #include <stdlib.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <string>
 #include <vector>
 
 #include "debug.h"
 #include "elf_traits.h"
 #include "libelf.h"
 #include "packer.h"
 
 namespace relocation_packer {
 
 // Stub identifier written to 'null out' packed data, "NULL".
 static const uint32_t kStubIdentifier = 0x4c4c554eu;
 
 // Out-of-band dynamic tags used to indicate the offset and size of the
 // .android.rel.dyn section.
-static const ELF::Sword DT_ANDROID_REL_OFFSET = DT_LOPROC;
-static const ELF::Sword DT_ANDROID_REL_SIZE = DT_LOPROC + 1;
+static const ELF::Sword DT_ANDROID_REL_OFFSET = DT_LOOS;
+static const ELF::Sword DT_ANDROID_REL_SIZE = DT_LOOS + 1;
 
 // Alignment to preserve, in bytes.  This must be at least as large as the
 // largest d_align and sh_addralign values found in the loaded file.
 static const size_t kPreserveAlignment = 256;
 
 namespace {
 
 // Get section data.  Checks that the section has exactly one data entry,
 // so that the section size and the data size are the same.  True in
 // practice for all sections we resize when packing or unpacking.  Done
@@ skipping 986 matching lines @@
 
   // Clean up libelf, and truncate the output file to the number of bytes
   // written by elf_update().
   elf_end(elf_);
   elf_ = NULL;
   const int truncate = ftruncate(fd_, file_bytes);
   CHECK(truncate == 0);
 }
 
 }  // namespace relocation_packer