xref: /build/templates/bpf/BUILD.gn

# Copyright (c) 2023 Huawei Device Co., Ltd.
# 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/templates/bpf/ohos_bpf_config.gni")

_script = "//build/ohos/file_exists.py"
_args = [
  "--filename",
  rebase_path(bpf_linux_kernel_dir, root_build_dir),
  "--type",
  "dir",
]
_result = exec_script(_script, _args, "string")
if (_result == "False") {
  bpf_linux_kernel_dir = "//kernel/linux-5.10-lts"
  kernel_tools_dir = "${bpf_linux_kernel_dir}/tools/lib/bpf"
}

action("gen_bpf_uapi") {
  kernel_dir = rebase_path(bpf_linux_kernel_dir, root_build_dir)
  kernel_out_dir = rebase_path("${target_out_dir}/${bpf_inc_out_dir}")
  kernel_tools_dir = rebase_path(kernel_tools_dir, root_build_dir)

  script = "//build/templates/bpf/gen_bpf_uapi.py"
  outputs = [ "${target_out_dir}/${target_name}.stamp" ]
  args = [
    "--kernel-dir",
    kernel_dir,
    "--kernel-out-dir",
    kernel_out_dir,
    "--target-cpu",
    target_cpu,
    "--kernel-tools-dir",
    kernel_tools_dir,
  ]
}