Remove the extra vp8_ on the offset rule.

libvpx.gyp

 # Copyright (c) 2012 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.
 {
   'variables': {
     'use_system_libvpx%': 0,
     'libvpx_build_vp9%': 1,
     'libvpx_source%': 'source/libvpx',
   },
   'target_defaults': {
@@ skipping 318 matching lines @@
             'source/config/<(OS_CATEGORY)/<(target_arch_full)',
             'source/config',
             '<(libvpx_source)',
           ],
           'sources': [
             '<(libvpx_source)/build/make/obj_int_extract.c',
           ]
         },
         {
           # A library that contains assembly offsets needed.
-          'target_name': 'libvpx_asm_offsets',
+          'target_name': 'libvpx_asm_offsets_vp8',
           'type': 'static_library',
           'hard_dependency': 1,
           'include_dirs': [
             'source/config/<(OS_CATEGORY)/<(target_arch_full)',
             'source/config',
             '<(libvpx_source)',
           ],
           'conditions': [
             ['asan==1', {
               'cflags!': [ '-fsanitize=address' ],
@@ skipping 57 matching lines @@
         },
         {
           # A target that takes assembly offsets library and generate the
           # corresponding assembly files.
           # This target is a hard dependency because the generated .asm files
           # are needed all assembly optimized files in libvpx.
           'target_name': 'gen_asm_offsets_vp8',
           'type': 'none',
           'hard_dependency': 1,
           'dependencies': [
-            'libvpx_asm_offsets',
+            'libvpx_asm_offsets_vp8',
             'libvpx_obj_int_extract#host',
           ],
           'conditions': [
             ['OS=="win"', {
               'variables': {
                 'ninja_obj_dir': '<(PRODUCT_DIR)/obj/third_party/libvpx/<(libvpx_source)/vp8',
               },
               'actions': [
                 {
                   'action_name': 'copy_enc_offsets_obj',
                   'inputs': [ 'copy_obj.sh' ],
-                  'outputs': [ '<(INTERMEDIATE_DIR)/asm_enc_offsets.obj' ],
+                  'outputs': [ '<(INTERMEDIATE_DIR)/vp8_asm_enc_offsets.obj' ],
                   'action': [
                     '<(DEPTH)/third_party/libvpx/copy_obj.sh',
                     '-d', '<@(_outputs)',
-                    '-s', '<(PRODUCT_DIR)/obj/libvpx_asm_offsets/asm_enc_offsets.obj',
-                    '-s', '<(ninja_obj_dir)/encoder/libvpx_asm_offsets.asm_enc_offsets.obj',
-                    '-s', '<(PRODUCT_DIR)/obj/Source/WebKit/chromium/third_party/libvpx/<(libvpx_source)/vp8/encoder/libvpx_asm_offsets.asm_enc_offsets.obj',
+                    '-s', '<(PRODUCT_DIR)/obj/libvpx_asm_offsets_vp8/vp8_asm_enc_offsets.obj',
+                    '-s', '<(ninja_obj_dir)/encoder/libvpx_asm_offsets_vp8.vp8_asm_enc_offsets.obj',
+                    '-s', '<(PRODUCT_DIR)/obj/Source/WebKit/chromium/third_party/libvpx/<(libvpx_source)/vp8/encoder/libvpx_asm_offsets_vp8.vp8_asm_enc_offsets.obj',
                   ],
                   'process_output_as_sources': 1,
                   'msvs_cygwin_shell': 1,
                 },
               ],
               'sources': [
-                '<(INTERMEDIATE_DIR)/asm_enc_offsets.obj',
+                '<(INTERMEDIATE_DIR)/vp8_asm_enc_offsets.obj',
               ],
             }, {
               'actions': [
                 {
                   # Take archived .a file and unpack it unto .o files.
                   'action_name': 'unpack_lib_posix',
                   'inputs': [
                     'unpack_lib_posix.sh',
                   ],
                   'outputs': [
-                    '<(INTERMEDIATE_DIR)/asm_enc_offsets.o',
+                    '<(INTERMEDIATE_DIR)/vp8_asm_enc_offsets.o',
                   ],
                   'action': [
                     '<(DEPTH)/third_party/libvpx/unpack_lib_posix.sh',
                     '-d', '<(INTERMEDIATE_DIR)',
-                    '-a', '<(PRODUCT_DIR)/libvpx_asm_offsets.a',
-                    '-a', '<(LIB_DIR)/third_party/libvpx/libvpx_asm_offsets.a',
-                    '-a', '<(LIB_DIR)/Source/WebKit/chromium/third_party/libvpx/libvpx_asm_offsets.a',
-                    '-f', 'asm_enc_offsets.o',
+                    '-a', '<(PRODUCT_DIR)/libvpx_asm_offsets_vp8.a',
+                    '-a', '<(LIB_DIR)/third_party/libvpx/libvpx_asm_offsets_vp8.a',
+                    '-a', '<(LIB_DIR)/Source/WebKit/chromium/third_party/libvpx/libvpx_asm_offsets_vp8.a',
+                    '-f', 'vp8_asm_enc_offsets.o',
                   ],
                   'process_output_as_sources': 1,
                   'msvs_cygwin_shell': 1,
                 },
               ],
               # Need this otherwise gyp won't run the rule on them.
               'sources': [
-                '<(INTERMEDIATE_DIR)/asm_enc_offsets.o',
+                '<(INTERMEDIATE_DIR)/vp8_asm_enc_offsets.o',
               ],
             }],
           ],
           'rules': [
             {
               # Rule to extract integer values for each symbol from an object file.
               'rule_name': 'obj_int_extract',
               'extension': '<(asm_obj_extension)',
               'inputs': [
                 '<(PRODUCT_DIR)/libvpx_obj_int_extract',
                 'obj_int_extract.sh',
               ],
               'outputs': [
-                '<(shared_generated_dir)/vp8_<(RULE_INPUT_ROOT).asm',
+                '<(shared_generated_dir)/<(RULE_INPUT_ROOT).asm',
               ],
               'variables': {
                 'conditions': [
                   ['target_arch=="arm"', {
                     'asm_format': 'gas',
                   }, {
                     'asm_format': 'rvds',
                   }],
                 ],
               },
               'action': [
                 '<(DEPTH)/third_party/libvpx/obj_int_extract.sh',
                 '-e', '<(PRODUCT_DIR)/libvpx_obj_int_extract',
                 '-f', '<(asm_format)',
                 '-b', '<(RULE_INPUT_PATH)',
-                '-o', '<(shared_generated_dir)/vp8_<(RULE_INPUT_ROOT).asm',
+                '-o', '<(shared_generated_dir)/<(RULE_INPUT_ROOT).asm',
               ],
               'message': 'Generate assembly offsets <(RULE_INPUT_PATH).',
               'msvs_cygwin_shell': 1,
             },
           ],
         },
         {
           # A target that takes assembly offsets library and generate the
           # corresponding assembly files.
           # This target is a hard dependency because the generated .asm files
@@ skipping 298 matching lines @@
             ],
             'libraries': [
               '<!@(pkg-config --libs-only-l vpx)',
             ],
           },
         },
       ],
     }],
   ],
 }