Build 64bit browser for Android with clang for ARMv8

third_party/boringssl/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/sanitizers/sanitizers.gni")
 import("//testing/libfuzzer/fuzzer_test.gni")
 
 # Config for us and everybody else depending on BoringSSL.
 config("external_config") {
@@ skipping 49 matching lines @@
     }
   }
 } else {
   source_set("boringssl_asm") {
     visibility = [ ":*" ]  # Only targets in this file can depend on this.
 
     sources = []
     asmflags = []
     include_dirs = [ "src/include" ]
 
-    if (current_cpu == "arm" && is_clang) {
+    if ((current_cpu == "arm" || current_cpu == "arm64") && is_clang) {
       # TODO(hans) Enable integrated-as (crbug.com/124610).
       asmflags += [ "-fno-integrated-as" ]
       if (is_android) {
         rebased_android_toolchain_root =
             rebase_path(android_toolchain_root, root_build_dir)
 
         # Else /usr/bin/as gets picked up.
         asmflags += [ "-B${rebased_android_toolchain_root}/bin" ]
       }
     }
@@ skipping 16 matching lines @@
       } else {
         public_configs = [ ":no_asm_config" ]
       }
     } else if (current_cpu == "arm" && (is_linux || is_android)) {
       sources += gypi_values.boringssl_linux_arm_sources
     } else if (current_cpu == "arm64" && (is_linux || is_android)) {
       sources += gypi_values.boringssl_linux_aarch64_sources
 
       # TODO(davidben): Remove explicit arch flag once https://crbug.com/576858
       # is fixed.
-      asmflags += [ "-march=armv8-a+crypto" ]
+      asmflags += [ "-march=armv8-a+crypto+simd+fp+crc" ]

[Nico, 2016/04/14 15:43:55]

can we fix https://llvm.org/bugs/show_bug.cgi?id=26016 instead?

[khasim.mohammed, 2016/04/14 16:38:46]

Not sure if I can get that fixed quickly. Will try to remove fno-integrated-as
and check removing simd+fp+crc.

     } else {
       public_configs = [ ":no_asm_config" ]
     }
   }
 }
 
 component("boringssl") {
   sources = boringssl_sources
   deps = [
     ":boringssl_asm",
@@ skipping 65 matching lines @@
 
 fuzzer_test("boringssl_server_bio_write_fuzzer") {
   sources = [
     "src/fuzz/server.cc",
   ]
   deps = [
     ":boringssl_fuzzer",
   ]
   seed_corpus = "src/fuzz/server_corpus"
 }