| Serge Bazanski | 9e861a8 | 2020-09-16 13:46:41 +0200 | [diff] [blame] | 1 | # Copyright 2020 The Monogon Project Authors. |
| 2 | # |
| 3 | # SPDX-License-Identifier: Apache-2.0 |
| 4 | # |
| 5 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | # you may not use this file except in compliance with the License. |
| 7 | # You may obtain a copy of the License at |
| 8 | # |
| 9 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | # |
| 11 | # Unless required by applicable law or agreed to in writing, software |
| 12 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | # See the License for the specific language governing permissions and |
| 15 | # limitations under the License. |
| 16 | |
| 17 | load( |
| 18 | "//build/utils:detect_root.bzl", |
| 19 | "detect_root", |
| 20 | ) |
| 21 | |
| 22 | def _linux_headers(ctx): |
| 23 | hdrs_name = ctx.attr.name + "_headers" |
| 24 | hdrs_dir = ctx.actions.declare_directory(hdrs_name) |
| 25 | |
| 26 | root = detect_root(ctx.attr.src) |
| 27 | ctx.actions.run_shell( |
| 28 | inputs = ctx.files.src, |
| 29 | outputs = [hdrs_dir], |
| 30 | progress_message = "Generating Linux Kernel Headers", |
| 31 | mnemonic = "LinuxCollectHeaders", |
| 32 | arguments = [root, ctx.attr.arch, hdrs_dir.path], |
| 33 | use_default_shell_env = True, |
| 34 | command = "make -C \"$1\" headers_install ARCH=\"$2\" INSTALL_HDR_PATH=\"$(pwd)/$3\" > /dev/null && mv \"$3/include/\"* \"$3/\" && rmdir \"$3/include\"", |
| 35 | ) |
| 36 | return [DefaultInfo(files=depset([hdrs_dir]))] |
| 37 | |
| 38 | linux_headers = rule( |
| 39 | implementation = _linux_headers, |
| 40 | attrs = { |
| 41 | "src": attr.label(mandatory = True), |
| 42 | "arch": attr.string(mandatory = True), |
| 43 | }, |
| 44 | ) |