1// Copyright (C) 2019 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 selinux 16 17import ( 18 "github.com/google/blueprint" 19 "github.com/google/blueprint/proptools" 20 21 "android/soong/android" 22) 23 24type dependencyTag struct { 25 blueprint.BaseDependencyTag 26 name string 27} 28 29var ( 30 pctx = android.NewPackageContext("android/soong/selinux") 31) 32 33// pathForModuleOut is same as android.PathForModuleOut, except that it uses DeviceName() as its 34// intermediate directory name for system_ext/product/vendor/odm modules, to avoid rebuilding upon 35// target change. Contents of system modules (core sepolicy) should be identical across devices, so 36// they falls back to android.PathForModuleOut. 37func pathForModuleOut(ctx android.ModuleContext, paths ...string) android.OutputPath { 38 if ctx.Platform() && !ctx.InstallInRecovery() { 39 return android.PathForModuleOut(ctx, paths...).OutputPath 40 } 41 42 return android.PathForModuleOut(ctx, ctx.Config().DeviceName()).Join(ctx, paths...) 43} 44 45// flagsToM4Macros converts given map to a list of M4's -D parameters to guard te files and contexts 46// files. 47func flagsToM4Macros(flags map[string]string) []string { 48 flagMacros := []string{} 49 for _, flag := range android.SortedKeys(flags) { 50 flagMacros = append(flagMacros, "-D target_flag_"+flag+"="+flags[flag]) 51 } 52 return flagMacros 53} 54 55// boardApiLevel returns the M4 argument containing the target board API level. 56func boardApiLevelToM4Macro(ctx android.ModuleContext, apiLevel *string) string { 57 level := proptools.StringDefault(apiLevel, "current") 58 if level == "current" { 59 level = ctx.Config().VendorApiLevel() 60 } 61 return "-D target_board_api_level=" + level 62} 63