1// Copyright (C) 2016 The Android Open Source Project
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package clang
16
17import (
18	"android/soong/android"
19	"android/soong/cc"
20
21	"github.com/google/blueprint"
22)
23
24// Clang binaries (clang, clang-check, clang-format) need to be compiled for both 32-bit and 64-bit,
25// but only when FORCE_BUILD_LLVM_COMPONENTS is set
26
27func init() {
28	android.RegisterModuleType("clang_binary_host", clangBinaryHostFactory)
29}
30
31func clangForceBuildLlvmComponents(ctx android.LoadHookContext) {
32	if ctx.AConfig().IsEnvTrue("FORCE_BUILD_LLVM_COMPONENTS") {
33		type props struct {
34			Target struct {
35				Host struct {
36					Compile_multilib string
37				}
38			}
39			Multilib struct {
40				Lib32 struct {
41					Suffix string
42				}
43			}
44		}
45		p := &props{}
46		p.Target.Host.Compile_multilib = "both"
47		p.Multilib.Lib32.Suffix = "_32"
48		ctx.AppendProperties(p)
49	}
50}
51
52func clangBinaryHostFactory() (blueprint.Module, []interface{}) {
53	module, _ := cc.NewBinary(android.HostSupported)
54	android.AddLoadHook(module, clangForceBuildLlvmComponents)
55
56	return module.Init()
57}
58