[foozzie] Support multi-architecture builds

BUILD.gn

 # 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/dcheck_always_on.gni")
 import("//build/config/mips.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 
@@ skipping 736 matching lines @@
   ]
 }
 
 action("v8_dump_build_config") {
   script = "tools/testrunner/utils/dump_build_config.py"
   outputs = [
     "$root_out_dir/v8_build_config.json",
   ]
   args = [
     rebase_path("$root_out_dir/v8_build_config.json", root_build_dir),
+    "current_cpu=\"$current_cpu\"",
     "dcheck_always_on=$dcheck_always_on",
     "is_asan=$is_asan",
     "is_cfi=$is_cfi",
     "is_component_build=$is_component_build",
     "is_debug=$is_debug",
     "is_msan=$is_msan",
     "is_tsan=$is_tsan",
     "target_cpu=\"$target_cpu\"",
+    "v8_current_cpu=\"$v8_current_cpu\"",
     "v8_enable_i18n_support=$v8_enable_i18n_support",
     "v8_enable_inspector=$v8_enable_inspector",
     "v8_target_cpu=\"$v8_target_cpu\"",
     "v8_use_snapshot=$v8_use_snapshot",
   ]
 }
 
 ###############################################################################
 # Source Sets (aka static libraries)
 #
@@ skipping 1761 matching lines @@
 
   if (want_v8_shell) {
     deps += [ ":v8_shell" ]
   }
 
   if (v8_test_isolation_mode != "noop") {
     deps += [ ":d8_run" ]
   }
 }
 
+group("v8_clusterfuzz") {
+  deps = [
+    ":d8",
+  ]
+
+  if (v8_multi_arch_build) {
+    deps += [
+      ":d8(//build/toolchain/linux:clang_x64)",
+      ":d8(//build/toolchain/linux:clang_x86)",
+    ]
+  }
+}
+
 group("v8_fuzzers") {
   testonly = true
   deps = [
     ":v8_simple_json_fuzzer",
     ":v8_simple_parser_fuzzer",
     ":v8_simple_regexp_fuzzer",
     ":v8_simple_wasm_asmjs_fuzzer",
     ":v8_simple_wasm_call_fuzzer",
     ":v8_simple_wasm_code_fuzzer",
     ":v8_simple_wasm_data_section_fuzzer",
@@ skipping 512 matching lines @@
   ]
 
   configs = [
     ":external_config",
     ":internal_config_base",
   ]
 }
 
 v8_fuzzer("wasm_data_section_fuzzer") {
 }