Port Android relocation packer to chromium build

third_party/android_platform/relocation_packer.gyp

+# Copyright 2015 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.
+
+{
+  'targets': [
+    {
+      # GN: //tools/relocation_packer:lib_relocation_packer
+      'target_name': 'android_lib_relocation_packer',
+      'toolsets': ['host'],
+      'type': 'static_library',
+      'dependencies': [
+        '../../third_party/elfutils/elfutils.gyp:libelf',
+      ],
+      'sources': [
+        'relocation_packer/src/debug.cc',
+        'relocation_packer/src/delta_encoder.cc',
+        'relocation_packer/src/elf_file.cc',
+        'relocation_packer/src/leb128.cc',
+        'relocation_packer/src/packer.cc',
+        'relocation_packer/src/sleb128.cc',

[rmcilroy, 2015/03/20 17:38:26]

Could you pull out the sources into a gypi file which sets them as a variable
and that way they can be shared by both gn and gyp.

[simonb (inactive), 2015/03/20 18:33:24]

Done.  (Specifically, pulled from variables within the main gyp file.)

+      ],
+    },
+    {
+      # GN: //tools/relocation_packer:relocation_packer
+      'target_name': 'android_relocation_packer',
+      'toolsets': ['host'],
+      'type': 'executable',
+      'dependencies': [
+        '../../third_party/elfutils/elfutils.gyp:libelf',
+        'android_lib_relocation_packer',
+      ],
+      'sources': [
+        'relocation_packer/src/main.cc',
+      ],
+    },
+    {
+      # GN: //tools/relocation_packer:relocation_packer_unittests

[rmcilroy, 2015/03/20 17:38:26]

Maybe better to do a TODO(GN) here (and remove the GN code) to make it obvious
that this needs to be added.

[simonb (inactive), 2015/03/20 18:33:24]

Done.

+      'target_name': 'android_relocation_packer_unittests',
+      'toolsets': ['host'],
+      'type': 'executable',
+      'dependencies': [
+        '../../testing/gtest.gyp:gtest',
+        'android_lib_relocation_packer',
+      ],
+      'include_dirs': [
+        '../..',
+      ],
+      'sources': [
+        'relocation_packer/src/debug_unittest.cc',
+        'relocation_packer/src/delta_encoder_unittest.cc',
+        'relocation_packer/src/elf_file_unittest.cc',
+        'relocation_packer/src/leb128_unittest.cc',
+        'relocation_packer/src/packer_unittest.cc',
+        'relocation_packer/src/sleb128_unittest.cc',
+        'relocation_packer/src/run_all_unittests.cc',
+      ],
+      'copies': [
+        {
+          'destination': '<(PRODUCT_DIR)',
+          'files': [
+            'relocation_packer/test_data/elf_file_unittest_relocs_arm32.so',
+            'relocation_packer/test_data/elf_file_unittest_relocs_arm32_packed.so',
+            'relocation_packer/test_data/elf_file_unittest_relocs_arm64.so',
+            'relocation_packer/test_data/elf_file_unittest_relocs_arm64_packed.so',
+          ],
+        },
+      ],
+    },
+  ],
+}