gn/perfetto.gni

# Copyright (C) 2017 The Android Open Source Project
#
# 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.

import("//build_overrides/build.gni")

# Summary of our build configurations:

# 1. Standalone builds
#    perfetto_build_standalone = true
#    perfetto_build_with_embedder = false
#    perfetto_build_with_android = false
#    build_with_chromium = false

# 2. Android tree builds
#    perfetto_build_standalone = false
#    perfetto_build_with_android = true
#    perfetto_build_with_embedder = false
#    build_with_chromium = false

# 3. Chromium tree builds
#    perfetto_build_standalone = false
#    perfetto_build_with_android = false
#    perfetto_build_with_embedder = true
#    build_with_chromium = true

# 4. Builds in other embedder trees
#    perfetto_build_standalone = false
#    perfetto_build_with_android = false
#    perfetto_build_with_embedder = true
#    build_with_chromium = false

# Note that |build_with_chromium| is a global convention used by several
# projects, set outside of our control.

declare_args() {
  # The Android blueprint file generator overrides this to true.
  perfetto_build_with_android = false

  # Whether the ftrace producer and the service should be started
  # by the integration test or assumed to be running.
  start_daemons_for_testing = true
}

if (!defined(perfetto_build_with_embedder)) {
  perfetto_build_with_embedder = build_with_chromium
}

perfetto_build_standalone =
    !perfetto_build_with_android && !build_with_chromium &&
    !perfetto_build_with_embedder

if (perfetto_build_standalone || perfetto_build_with_android) {
  perfetto_root_path = "//"
} else if (!defined(perfetto_root_path)) {
  perfetto_root_path = "//third_party/perfetto/"
}

# If we're building in the Android tree, we expect that the testing infra
# will start the binaries in the system image before the tests are run.
if (perfetto_build_with_android) {
  start_daemons_for_testing = false
}

# Cross-checks.

# If |build_with_chromium| is true then also |perfetto_build_with_embedder|
# must be true
assert(!build_with_chromium || perfetto_build_with_embedder)