1// Copyright 2016 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 config 16 17import ( 18 "strings" 19 20 "android/soong/android" 21) 22 23var ( 24 linuxBionicCflags = ClangFilterUnknownCflags([]string{ 25 "-fdiagnostics-color", 26 27 "-Wa,--noexecstack", 28 29 "-fPIC", 30 31 "-U_FORTIFY_SOURCE", 32 "-D_FORTIFY_SOURCE=2", 33 "-fstack-protector-strong", 34 35 // From x86_64_device 36 "-ffunction-sections", 37 "-finline-functions", 38 "-finline-limit=300", 39 "-fno-short-enums", 40 "-funswitch-loops", 41 "-funwind-tables", 42 "-fno-canonical-system-headers", 43 44 // Tell clang where the gcc toolchain is 45 "--gcc-toolchain=${LinuxBionicGccRoot}", 46 47 // This is normally in ClangExtraTargetCflags, but this is considered host 48 "-nostdlibinc", 49 }) 50 51 linuxBionicLdflags = ClangFilterUnknownCflags([]string{ 52 "-Wl,-z,noexecstack", 53 "-Wl,-z,relro", 54 "-Wl,-z,now", 55 "-Wl,--build-id=md5", 56 "-Wl,--warn-shared-textrel", 57 "-Wl,--fatal-warnings", 58 "-Wl,--hash-style=gnu", 59 "-Wl,--no-undefined-version", 60 61 // Use the device gcc toolchain 62 "--gcc-toolchain=${LinuxBionicGccRoot}", 63 }) 64 65 linuxBionicLldflags = ClangFilterUnknownLldflags(linuxBionicLdflags) 66) 67 68func init() { 69 pctx.StaticVariable("LinuxBionicCflags", strings.Join(linuxBionicCflags, " ")) 70 pctx.StaticVariable("LinuxBionicLdflags", strings.Join(linuxBionicLdflags, " ")) 71 pctx.StaticVariable("LinuxBionicLldflags", strings.Join(linuxBionicLldflags, " ")) 72 73 pctx.StaticVariable("LinuxBionicIncludeFlags", bionicHeaders("x86")) 74 75 // Use the device gcc toolchain for now 76 pctx.StaticVariable("LinuxBionicGccRoot", "${X86_64GccRoot}") 77} 78 79type toolchainLinuxBionic struct { 80 toolchain64Bit 81} 82 83func (t *toolchainLinuxBionic) Name() string { 84 return "x86_64" 85} 86 87func (t *toolchainLinuxBionic) GccRoot() string { 88 return "${config.LinuxBionicGccRoot}" 89} 90 91func (t *toolchainLinuxBionic) GccTriple() string { 92 return "x86_64-linux-android" 93} 94 95func (t *toolchainLinuxBionic) GccVersion() string { 96 return "4.9" 97} 98 99func (t *toolchainLinuxBionic) IncludeFlags() string { 100 return "${config.LinuxBionicIncludeFlags}" 101} 102 103func (t *toolchainLinuxBionic) ClangTriple() string { 104 // TODO: we don't have a triple yet b/31393676 105 return "x86_64-linux-android" 106} 107 108func (t *toolchainLinuxBionic) ClangCflags() string { 109 return "${config.LinuxBionicCflags}" 110} 111 112func (t *toolchainLinuxBionic) ClangCppflags() string { 113 return "" 114} 115 116func (t *toolchainLinuxBionic) ClangLdflags() string { 117 return "${config.LinuxBionicLdflags}" 118} 119 120func (t *toolchainLinuxBionic) ClangLldflags() string { 121 return "${config.LinuxBionicLldflags}" 122} 123 124func (t *toolchainLinuxBionic) ToolchainClangCflags() string { 125 return "-m64 -march=x86-64" + 126 // TODO: We're not really android, but we don't have a triple yet b/31393676 127 " -U__ANDROID__" 128} 129 130func (t *toolchainLinuxBionic) ToolchainClangLdflags() string { 131 return "-m64" 132} 133 134func (t *toolchainLinuxBionic) AvailableLibraries() []string { 135 return nil 136} 137 138func (t *toolchainLinuxBionic) Bionic() bool { 139 return true 140} 141 142func (toolchainLinuxBionic) LibclangRuntimeLibraryArch() string { 143 return "x86_64" 144} 145 146var toolchainLinuxBionicSingleton Toolchain = &toolchainLinuxBionic{} 147 148func linuxBionicToolchainFactory(arch android.Arch) Toolchain { 149 return toolchainLinuxBionicSingleton 150} 151 152func init() { 153 registerToolchainFactory(android.LinuxBionic, android.X86_64, linuxBionicToolchainFactory) 154} 155