starboard/evergreen/arm64/platform_configuration/BUILD.gn

# Copyright 2022 The Cobalt Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

config("sabi_flags") {
  cflags = [
    "-march=arm64v8a",
    "-target",
    "arm64v8a-unknown-unknown-elf",

    # char is unsigned by default for arm64.
    "-fsigned-char",
  ]
}

config("platform_configuration") {
  configs = [ "//starboard/build/config/sabi" ]

  if (current_toolchain == default_toolchain) {
    configs += [
      ":sabi_flags",
      "//starboard/evergreen/shared/platform_configuration",
    ]

    cflags = [ "-isystem" +
               rebase_path("//third_party/musl/arch/aarch64", root_build_dir) ]
  } else {
    cflags = [ "-O2" ]
  }
}