Dan Willemsen | 01a405a | 2016-06-13 17:19:03 -0700 | [diff] [blame] | 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 | |
| 15 | package config |
| 16 | |
| 17 | import ( |
| 18 | "strings" |
| 19 | |
| 20 | "android/soong/android" |
| 21 | ) |
| 22 | |
| 23 | var ( |
| 24 | linuxBionicCflags = ClangFilterUnknownCflags([]string{ |
| 25 | "-fno-exceptions", // from build/core/combo/select.mk |
| 26 | "-Wno-multichar", // from build/core/combo/select.mk |
| 27 | |
| 28 | "-fdiagnostics-color", |
| 29 | |
| 30 | "-Wa,--noexecstack", |
| 31 | |
| 32 | "-fPIC", |
| 33 | "-no-canonical-prefixes", |
| 34 | |
| 35 | "-U_FORTIFY_SOURCE", |
| 36 | "-D_FORTIFY_SOURCE=2", |
| 37 | "-fstack-protector-strong", |
| 38 | |
| 39 | // From x86_64_device |
| 40 | "-ffunction-sections", |
| 41 | "-finline-functions", |
| 42 | "-finline-limit=300", |
| 43 | "-fno-short-enums", |
| 44 | "-funswitch-loops", |
| 45 | "-funwind-tables", |
| 46 | "-no-canonical-prefixes", |
| 47 | "-fno-canonical-system-headers", |
| 48 | |
| 49 | // HOST_RELEASE_CFLAGS |
| 50 | "-O2", // from build/core/combo/select.mk |
| 51 | "-g", // from build/core/combo/select.mk |
| 52 | "-fno-strict-aliasing", // from build/core/combo/select.mk |
| 53 | |
| 54 | // Tell clang where the gcc toolchain is |
| 55 | "--gcc-toolchain=${LinuxBionicGccRoot}", |
| 56 | |
Dan Willemsen | 01a405a | 2016-06-13 17:19:03 -0700 | [diff] [blame] | 57 | // This is normally in ClangExtraTargetCflags, but this is considered host |
| 58 | "-nostdlibinc", |
| 59 | }) |
| 60 | |
| 61 | linuxBionicLdflags = ClangFilterUnknownCflags([]string{ |
| 62 | "-Wl,-z,noexecstack", |
| 63 | "-Wl,-z,relro", |
| 64 | "-Wl,-z,now", |
| 65 | "-Wl,--build-id=md5", |
| 66 | "-Wl,--warn-shared-textrel", |
| 67 | "-Wl,--fatal-warnings", |
| 68 | "-Wl,--gc-sections", |
| 69 | "-Wl,--hash-style=gnu", |
| 70 | "-Wl,--no-undefined-version", |
| 71 | |
| 72 | // Use the device gcc toolchain |
| 73 | "--gcc-toolchain=${LinuxBionicGccRoot}", |
| 74 | }) |
| 75 | ) |
| 76 | |
| 77 | func init() { |
| 78 | pctx.StaticVariable("LinuxBionicCflags", strings.Join(linuxBionicCflags, " ")) |
| 79 | pctx.StaticVariable("LinuxBionicLdflags", strings.Join(linuxBionicLdflags, " ")) |
| 80 | |
| 81 | pctx.StaticVariable("LinuxBionicIncludeFlags", bionicHeaders("x86_64", "x86")) |
| 82 | |
| 83 | // Use the device gcc toolchain for now |
| 84 | pctx.StaticVariable("LinuxBionicGccRoot", "${X86_64GccRoot}") |
| 85 | } |
| 86 | |
| 87 | type toolchainLinuxBionic struct { |
| 88 | toolchain64Bit |
| 89 | } |
| 90 | |
| 91 | func (t *toolchainLinuxBionic) Name() string { |
| 92 | return "x86_64" |
| 93 | } |
| 94 | |
| 95 | func (t *toolchainLinuxBionic) GccRoot() string { |
| 96 | return "${config.LinuxBionicGccRoot}" |
| 97 | } |
| 98 | |
| 99 | func (t *toolchainLinuxBionic) GccTriple() string { |
| 100 | return "x86_64-linux-android" |
| 101 | } |
| 102 | |
| 103 | func (t *toolchainLinuxBionic) GccVersion() string { |
| 104 | return "4.9" |
| 105 | } |
| 106 | |
| 107 | func (t *toolchainLinuxBionic) Cflags() string { |
| 108 | return "" |
| 109 | } |
| 110 | |
| 111 | func (t *toolchainLinuxBionic) Cppflags() string { |
| 112 | return "" |
| 113 | } |
| 114 | |
| 115 | func (t *toolchainLinuxBionic) Ldflags() string { |
| 116 | return "" |
| 117 | } |
| 118 | |
| 119 | func (t *toolchainLinuxBionic) IncludeFlags() string { |
| 120 | return "${config.LinuxBionicIncludeFlags}" |
| 121 | } |
| 122 | |
| 123 | func (t *toolchainLinuxBionic) ClangTriple() string { |
| 124 | // TODO: we don't have a triple yet b/31393676 |
| 125 | return "x86_64-linux-android" |
| 126 | } |
| 127 | |
| 128 | func (t *toolchainLinuxBionic) ClangCflags() string { |
| 129 | return "${config.LinuxBionicCflags}" |
| 130 | } |
| 131 | |
| 132 | func (t *toolchainLinuxBionic) ClangCppflags() string { |
| 133 | return "" |
| 134 | } |
| 135 | |
| 136 | func (t *toolchainLinuxBionic) ClangLdflags() string { |
| 137 | return "${config.LinuxBionicLdflags}" |
| 138 | } |
| 139 | |
| 140 | func (t *toolchainLinuxBionic) ToolchainClangCflags() string { |
Dan Willemsen | 38394b9 | 2017-09-18 22:50:22 -0700 | [diff] [blame^] | 141 | return "-m64 -march=x86-64" + |
| 142 | // TODO: We're not really android, but we don't have a triple yet b/31393676 |
| 143 | " -U__ANDROID__ -fno-emulated-tls" |
Dan Willemsen | 01a405a | 2016-06-13 17:19:03 -0700 | [diff] [blame] | 144 | } |
| 145 | |
| 146 | func (t *toolchainLinuxBionic) ToolchainClangLdflags() string { |
| 147 | return "-m64" |
| 148 | } |
| 149 | |
| 150 | func (t *toolchainLinuxBionic) AvailableLibraries() []string { |
| 151 | return nil |
| 152 | } |
| 153 | |
| 154 | func (t *toolchainLinuxBionic) Bionic() bool { |
| 155 | return true |
| 156 | } |
| 157 | |
| 158 | var toolchainLinuxBionicSingleton Toolchain = &toolchainLinuxBionic{} |
| 159 | |
| 160 | func linuxBionicToolchainFactory(arch android.Arch) Toolchain { |
| 161 | return toolchainLinuxBionicSingleton |
| 162 | } |
| 163 | |
| 164 | func init() { |
| 165 | registerToolchainFactory(android.LinuxBionic, android.X86_64, linuxBionicToolchainFactory) |
| 166 | } |