1// Copyright (C) 2018 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 vintf 16 17import ( 18 "fmt" 19 "io" 20 "strings" 21 22 "github.com/google/blueprint" 23 "github.com/google/blueprint/proptools" 24 25 "android/soong/android" 26 "android/soong/kernel/configs" 27) 28 29type dependencyTag struct { 30 blueprint.BaseDependencyTag 31 name string 32} 33 34var ( 35 pctx = android.NewPackageContext("android/vintf") 36 37 assembleVintfRule = pctx.AndroidStaticRule("assemble_vintf", blueprint.RuleParams{ 38 Command: `${assembleVintfCmd} -i ${inputs} -o ${out}`, 39 CommandDeps: []string{"${assembleVintfCmd}"}, 40 Description: "assemble_vintf -i ${inputs}", 41 }, "inputs") 42 43 kernelConfigTag = dependencyTag{name: "kernel-config"} 44) 45 46const ( 47 relpath = "vintf" 48) 49 50type vintfCompatibilityMatrixProperties struct { 51 // set the name of the output 52 Stem *string 53 54 // list of source compatibility matrix XML files 55 Srcs []string 56 57 // list of kernel_config modules to be combined to final output 58 Kernel_configs []string 59} 60 61type vintfCompatibilityMatrixRule struct { 62 android.ModuleBase 63 properties vintfCompatibilityMatrixProperties 64 65 genFile android.WritablePath 66} 67 68func init() { 69 pctx.HostBinToolVariable("assembleVintfCmd", "assemble_vintf") 70 android.RegisterModuleType("vintf_compatibility_matrix", vintfCompatibilityMatrixFactory) 71} 72 73func vintfCompatibilityMatrixFactory() android.Module { 74 g := &vintfCompatibilityMatrixRule{} 75 g.AddProperties(&g.properties) 76 android.InitAndroidArchModule(g, android.DeviceSupported, android.MultilibCommon) 77 return g 78} 79 80var _ android.AndroidMkDataProvider = (*vintfCompatibilityMatrixRule)(nil) 81 82func (g *vintfCompatibilityMatrixRule) DepsMutator(ctx android.BottomUpMutatorContext) { 83 android.ExtractSourcesDeps(ctx, g.properties.Srcs) 84 ctx.AddDependency(ctx.Module(), kernelConfigTag, g.properties.Kernel_configs...) 85} 86 87func (g *vintfCompatibilityMatrixRule) GenerateAndroidBuildActions(ctx android.ModuleContext) { 88 89 outputFilename := proptools.String(g.properties.Stem) 90 if outputFilename == "" { 91 outputFilename = g.Name() 92 } 93 94 inputPaths := android.PathsForModuleSrc(ctx, g.properties.Srcs) 95 ctx.VisitDirectDepsWithTag(kernelConfigTag, func(m android.Module) { 96 if k, ok := m.(*configs.KernelConfigRule); ok { 97 inputPaths = append(inputPaths, k.OutputPath()) 98 } else { 99 ctx.PropertyErrorf("kernel_config", 100 "module %q is not a kernel_config", ctx.OtherModuleName(m)) 101 } 102 }) 103 104 g.genFile = android.PathForModuleGen(ctx, outputFilename) 105 106 ctx.Build(pctx, android.BuildParams{ 107 Rule: assembleVintfRule, 108 Description: "Framework Compatibility Matrix", 109 Implicits: inputPaths, 110 Output: g.genFile, 111 Args: map[string]string{ 112 "inputs": strings.Join(inputPaths.Strings(), ":"), 113 }, 114 }) 115 116 ctx.InstallFile(android.PathForModuleInstall(ctx, "etc", relpath), outputFilename, g.genFile) 117} 118 119func (g *vintfCompatibilityMatrixRule) AndroidMk() android.AndroidMkData { 120 return android.AndroidMkData{ 121 Class: "ETC", 122 OutputFile: android.OptionalPathForPath(g.genFile), 123 Extra: []android.AndroidMkExtraFunc{ 124 func(w io.Writer, outputFile android.Path) { 125 fmt.Fprintln(w, "LOCAL_MODULE_RELATIVE_PATH :=", relpath) 126 if proptools.String(g.properties.Stem) != "" { 127 fmt.Fprintln(w, "LOCAL_MODULE_STEM :=", proptools.String(g.properties.Stem)) 128 } 129 }, 130 }, 131 } 132} 133