starboard/evergreen/shared/platform_configuration/BUILD.gn

# Copyright 2021 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("platform_configuration") {
  configs = [ "//starboard/build/config/modular" ]
  ldflags = []
  if (sb_is_evergreen) {
    ldflags += [
      "-fuse-ld=lld",
      "-Wl,--build-id",
      "-Wl,--gc-sections",
      "-Wl,-X",
      "-Wl,-v",
      "-Wl,-eh-frame-hdr",
      "-Wl,--fini=__cxa_finalize",
      "-Wl,-shared",
      "-Wl,-L$clang_base_path",
      "-Wl,-L/usr/lib",
      "-Wl,-L/lib",
      "-Wl,-u GetEvergreenSabiString",
    ]
  }

  if (sb_is_evergreen) {
    ldflags += [ "-nostdlib" ]
  }

  defines = [
    # During Evergreen updates the CRX package is kept in-memory, instead of
    # on the file system, before getting unpacked.
    # TODO(b/158043520): we need to make significant customizations to Chromium
    # code to implement this feature and this macro allows us to switch back
    # to the legacy behavior during development to verify the customizations
    # are made cleanly. Once the feature is complete we may want to remove
    # existing customizations that enable the legacy behavior for Cobalt builds,
    # change IN_MEMORY_UPDATES references to USE_COBALT_CUSTOMIZATIONS
    # references, and remove this macro.
    "IN_MEMORY_UPDATES",
  ]

  if (use_asan) {
    ldflags += [
      "-fsanitize=address",

      # Force linking of the helpers in sanitizer_options.cc
      "-Wl,-u_sanitizer_options_link_helper",
    ]
  } else if (use_tsan) {
    ldflags += [ "-fsanitize=thread" ]
  }
}

config("size") {
  configs = [ "//starboard/build/config/modular:size" ]
  if (sb_is_evergreen && (is_qa || is_gold)) {
    ldflags = [ "-Wl,--icf=safe" ]
  }
}