1 // Copyright 2015 Google Inc. All rights reserved. 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 15 package common 16 17 import ( 18 "fmt" 19 "reflect" 20 "runtime" 21 "strings" 22 23 "github.com/google/blueprint/proptools" 24 ) 25 26 func init() { 27 RegisterBottomUpMutator("variable", variableMutator) 28 } 29 30 type variableProperties struct { 31 Product_variables struct { 32 Platform_sdk_version struct { 33 Asflags []string 34 } 35 36 // unbundled_build is a catch-all property to annotate modules that don't build in one or 37 // more unbundled branches, usually due to dependencies missing from the manifest. 38 Unbundled_build struct { 39 Enabled *bool `android:"arch_variant"` 40 } `android:"arch_variant"` 41 42 Brillo struct { 43 Version_script *string `android:"arch_variant"` 44 } `android:"arch_variant"` 45 46 Malloc_not_svelte struct { 47 Cflags []string 48 } 49 } `android:"arch_variant"` 50 } 51 52 var zeroProductVariables variableProperties 53 54 type productVariables struct { 55 Platform_sdk_version *int `json:",omitempty"` 56 57 DeviceName *string `json:",omitempty"` 58 DeviceArch *string `json:",omitempty"` 59 DeviceArchVariant *string `json:",omitempty"` 60 DeviceCpuVariant *string `json:",omitempty"` 61 DeviceAbi *[]string `json:",omitempty"` 62 DeviceUsesClang *bool `json:",omitempty"` 63 64 DeviceSecondaryArch *string `json:",omitempty"` 65 DeviceSecondaryArchVariant *string `json:",omitempty"` 66 DeviceSecondaryCpuVariant *string `json:",omitempty"` 67 DeviceSecondaryAbi *[]string `json:",omitempty"` 68 69 HostArch *string `json:",omitempty"` 70 HostSecondaryArch *string `json:",omitempty"` 71 72 CrossHost *string `json:",omitempty"` 73 CrossHostArch *string `json:",omitempty"` 74 CrossHostSecondaryArch *string `json:",omitempty"` 75 76 Allow_missing_dependencies *bool `json:",omitempty"` 77 Unbundled_build *bool `json:",omitempty"` 78 Brillo *bool `json:",omitempty"` 79 Malloc_not_svelte *bool `json:",omitempty"` 80 } 81 82 func boolPtr(v bool) *bool { 83 return &v 84 } 85 86 func intPtr(v int) *int { 87 return &v 88 } 89 90 func stringPtr(v string) *string { 91 return &v 92 } 93 94 func (v *productVariables) SetDefaultConfig() { 95 *v = productVariables{ 96 Platform_sdk_version: intPtr(22), 97 HostArch: stringPtr("x86_64"), 98 HostSecondaryArch: stringPtr("x86"), 99 DeviceName: stringPtr("flounder"), 100 DeviceArch: stringPtr("arm64"), 101 DeviceCpuVariant: stringPtr("denver64"), 102 DeviceAbi: &[]string{"arm64-v8a"}, 103 DeviceUsesClang: boolPtr(true), 104 DeviceSecondaryArch: stringPtr("arm"), 105 DeviceSecondaryArchVariant: stringPtr("armv7-a-neon"), 106 DeviceSecondaryCpuVariant: stringPtr("denver"), 107 DeviceSecondaryAbi: &[]string{"armeabi-v7a"}, 108 Malloc_not_svelte: boolPtr(false), 109 } 110 111 if runtime.GOOS == "linux" { 112 v.CrossHost = stringPtr("windows") 113 v.CrossHostArch = stringPtr("x86") 114 v.CrossHostSecondaryArch = stringPtr("x86_64") 115 } 116 } 117 118 func variableMutator(mctx AndroidBottomUpMutatorContext) { 119 var module AndroidModule 120 var ok bool 121 if module, ok = mctx.Module().(AndroidModule); !ok { 122 return 123 } 124 125 // TODO: depend on config variable, create variants, propagate variants up tree 126 a := module.base() 127 variableValues := reflect.ValueOf(&a.variableProperties.Product_variables).Elem() 128 zeroValues := reflect.ValueOf(zeroProductVariables.Product_variables) 129 130 for i := 0; i < variableValues.NumField(); i++ { 131 variableValue := variableValues.Field(i) 132 zeroValue := zeroValues.Field(i) 133 name := variableValues.Type().Field(i).Name 134 property := "product_variables." + proptools.PropertyNameForField(name) 135 136 // Check that the variable was set for the product 137 val := reflect.ValueOf(mctx.Config().(Config).ProductVariables).FieldByName(name) 138 if !val.IsValid() || val.Kind() != reflect.Ptr || val.IsNil() { 139 continue 140 } 141 142 val = val.Elem() 143 144 // For bools, check that the value is true 145 if val.Kind() == reflect.Bool && val.Bool() == false { 146 continue 147 } 148 149 // Check if any properties were set for the module 150 if reflect.DeepEqual(variableValue.Interface(), zeroValue.Interface()) { 151 continue 152 } 153 154 a.setVariableProperties(mctx, property, variableValue, val.Interface()) 155 } 156 } 157 158 func (a *AndroidModuleBase) setVariableProperties(ctx AndroidBottomUpMutatorContext, 159 prefix string, productVariablePropertyValue reflect.Value, variableValue interface{}) { 160 161 printfIntoProperties(productVariablePropertyValue, variableValue) 162 163 err := proptools.AppendMatchingProperties(a.generalProperties, 164 productVariablePropertyValue.Addr().Interface(), nil) 165 if err != nil { 166 if propertyErr, ok := err.(*proptools.ExtendPropertyError); ok { 167 ctx.PropertyErrorf(propertyErr.Property, "%s", propertyErr.Err.Error()) 168 } else { 169 panic(err) 170 } 171 } 172 } 173 174 func printfIntoProperties(productVariablePropertyValue reflect.Value, variableValue interface{}) { 175 for i := 0; i < productVariablePropertyValue.NumField(); i++ { 176 propertyValue := productVariablePropertyValue.Field(i) 177 kind := propertyValue.Kind() 178 if kind == reflect.Ptr { 179 if propertyValue.IsNil() { 180 continue 181 } 182 propertyValue = propertyValue.Elem() 183 } 184 switch propertyValue.Kind() { 185 case reflect.String: 186 printfIntoProperty(propertyValue, variableValue) 187 case reflect.Slice: 188 for j := 0; j < propertyValue.Len(); j++ { 189 printfIntoProperty(propertyValue.Index(j), variableValue) 190 } 191 case reflect.Bool: 192 // Nothing 193 case reflect.Struct: 194 printfIntoProperties(propertyValue, variableValue) 195 default: 196 panic(fmt.Errorf("unsupported field kind %q", propertyValue.Kind())) 197 } 198 } 199 } 200 201 func printfIntoProperty(propertyValue reflect.Value, variableValue interface{}) { 202 s := propertyValue.String() 203 // For now, we only support int formats 204 var i int 205 if strings.Contains(s, "%d") { 206 switch v := variableValue.(type) { 207 case int: 208 i = v 209 case bool: 210 if v { 211 i = 1 212 } 213 default: 214 panic(fmt.Errorf("unsupported type %T", variableValue)) 215 } 216 propertyValue.Set(reflect.ValueOf(fmt.Sprintf(s, i))) 217 } 218 } 219
