1// Copyright 2020 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 15package cc 16 17import ( 18 "fmt" 19 20 "android/soong/android" 21) 22 23// MinApiLevelForArch returns the ApiLevel for the Android version that 24// first supported the architecture. 25func MinApiForArch(ctx android.EarlyModuleContext, 26 arch android.ArchType) android.ApiLevel { 27 28 switch arch { 29 case android.Arm, android.X86: 30 return ctx.Config().MinSupportedSdkVersion() 31 case android.Arm64, android.X86_64: 32 return android.FirstLp64Version 33 case android.Riscv64: 34 return android.FutureApiLevel 35 default: 36 panic(fmt.Errorf("Unknown arch %q", arch)) 37 } 38} 39 40// Native API levels cannot be less than the MinApiLevelForArch. This function 41// sets the lower bound of the API level with the MinApiLevelForArch. 42func nativeClampedApiLevel(ctx android.BaseModuleContext, 43 apiLevel android.ApiLevel) android.ApiLevel { 44 45 min := MinApiForArch(ctx, ctx.Arch().ArchType) 46 47 if apiLevel.LessThan(min) { 48 return min 49 } 50 51 return apiLevel 52} 53 54func nativeApiLevelFromUser(ctx android.BaseModuleContext, 55 raw string) (android.ApiLevel, error) { 56 57 if raw == "minimum" { 58 return MinApiForArch(ctx, ctx.Arch().ArchType), nil 59 } 60 61 value, err := android.ApiLevelFromUser(ctx, raw) 62 if err != nil { 63 return android.NoneApiLevel, err 64 } 65 66 return nativeClampedApiLevel(ctx, value), nil 67} 68 69func nativeApiLevelOrPanic(ctx android.BaseModuleContext, 70 raw string) android.ApiLevel { 71 72 value, err := nativeApiLevelFromUser(ctx, raw) 73 if err != nil { 74 panic(err.Error()) 75 } 76 return value 77} 78