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 15package config 16 17import ( 18 "fmt" 19 "strings" 20 21 "android/soong/android" 22) 23 24var ( 25 arm64Cflags = []string{ 26 // Help catch common 32/64-bit errors. 27 "-Werror=implicit-function-declaration", 28 } 29 30 arm64ArchVariantCflags = map[string][]string{ 31 "armv8-a": []string{ 32 "-march=armv8-a", 33 }, 34 "armv8-a-branchprot": []string{ 35 "-march=armv8-a", 36 "-mbranch-protection=standard", 37 }, 38 "armv8-2a": []string{ 39 "-march=armv8.2-a", 40 }, 41 "armv8-2a-dotprod": []string{ 42 "-march=armv8.2-a+dotprod", 43 }, 44 // On ARMv9 and later, Pointer Authentication Codes (PAC) are mandatory, 45 // so -fstack-protector is unnecessary. 46 "armv9-a": []string{ 47 "-march=armv8.2-a+dotprod", 48 "-mbranch-protection=standard", 49 "-fno-stack-protector", 50 }, 51 "armv9-2a": []string{ 52 "-march=armv9.2-a", 53 "-mbranch-protection=standard", 54 "-fno-stack-protector", 55 }, 56 } 57 58 arm64Ldflags = []string{ 59 "-Wl,-z,separate-code", 60 "-Wl,-z,separate-loadable-segments", 61 } 62 63 arm64Lldflags = arm64Ldflags 64 65 arm64Cppflags = []string{} 66 67 arm64CpuVariantCflags = map[string][]string{ 68 "cortex-a53": []string{ 69 "-mcpu=cortex-a53", 70 }, 71 "cortex-a55": []string{ 72 "-mcpu=cortex-a55", 73 }, 74 "cortex-a75": []string{ 75 // Use the cortex-a55 since it is similar to the little 76 // core (cortex-a55) and is sensitive to ordering. 77 "-mcpu=cortex-a55", 78 }, 79 "cortex-a76": []string{ 80 // Use the cortex-a55 since it is similar to the little 81 // core (cortex-a55) and is sensitive to ordering. 82 "-mcpu=cortex-a55", 83 }, 84 "kryo": []string{ 85 "-mcpu=kryo", 86 }, 87 "kryo385": []string{ 88 // Use cortex-a53 because kryo385 is not supported in clang. 89 "-mcpu=cortex-a53", 90 }, 91 "exynos-m1": []string{ 92 "-mcpu=exynos-m1", 93 }, 94 "exynos-m2": []string{ 95 "-mcpu=exynos-m2", 96 }, 97 } 98) 99 100func init() { 101 pctx.StaticVariable("Arm64Ldflags", strings.Join(arm64Ldflags, " ")) 102 103 pctx.VariableFunc("Arm64Lldflags", func(ctx android.PackageVarContext) string { 104 maxPageSizeFlag := "-Wl,-z,max-page-size=" + ctx.Config().MaxPageSizeSupported() 105 flags := append(arm64Lldflags, maxPageSizeFlag) 106 return strings.Join(flags, " ") 107 }) 108 109 pctx.VariableFunc("Arm64Cflags", func(ctx android.PackageVarContext) string { 110 flags := arm64Cflags 111 if ctx.Config().NoBionicPageSizeMacro() { 112 flags = append(flags, "-D__BIONIC_NO_PAGE_SIZE_MACRO") 113 } else { 114 flags = append(flags, "-D__BIONIC_DEPRECATED_PAGE_SIZE_MACRO") 115 } 116 return strings.Join(flags, " ") 117 }) 118 119 pctx.StaticVariable("Arm64Cppflags", strings.Join(arm64Cppflags, " ")) 120 121 for variant, cflags := range arm64ArchVariantCflags { 122 pctx.StaticVariable("Arm64"+variant+"VariantCflags", strings.Join(cflags, " ")) 123 } 124 125 pctx.StaticVariable("Arm64CortexA53Cflags", strings.Join(arm64CpuVariantCflags["cortex-a53"], " ")) 126 pctx.StaticVariable("Arm64CortexA55Cflags", strings.Join(arm64CpuVariantCflags["cortex-a55"], " ")) 127 pctx.StaticVariable("Arm64KryoCflags", strings.Join(arm64CpuVariantCflags["kryo"], " ")) 128 pctx.StaticVariable("Arm64ExynosM1Cflags", strings.Join(arm64CpuVariantCflags["exynos-m1"], " ")) 129 pctx.StaticVariable("Arm64ExynosM2Cflags", strings.Join(arm64CpuVariantCflags["exynos-m2"], " ")) 130 131 pctx.StaticVariable("Arm64FixCortexA53Ldflags", "-Wl,--fix-cortex-a53-843419") 132} 133 134var ( 135 arm64CpuVariantCflagsVar = map[string]string{ 136 "cortex-a53": "${config.Arm64CortexA53Cflags}", 137 "cortex-a55": "${config.Arm64CortexA55Cflags}", 138 "cortex-a72": "${config.Arm64CortexA53Cflags}", 139 "cortex-a73": "${config.Arm64CortexA53Cflags}", 140 "cortex-a75": "${config.Arm64CortexA55Cflags}", 141 "cortex-a76": "${config.Arm64CortexA55Cflags}", 142 "kryo": "${config.Arm64KryoCflags}", 143 "kryo385": "${config.Arm64CortexA53Cflags}", 144 "exynos-m1": "${config.Arm64ExynosM1Cflags}", 145 "exynos-m2": "${config.Arm64ExynosM2Cflags}", 146 } 147 148 arm64CpuVariantLdflags = map[string]string{ 149 "cortex-a53": "${config.Arm64FixCortexA53Ldflags}", 150 "cortex-a72": "${config.Arm64FixCortexA53Ldflags}", 151 "cortex-a73": "${config.Arm64FixCortexA53Ldflags}", 152 "kryo": "${config.Arm64FixCortexA53Ldflags}", 153 "exynos-m1": "${config.Arm64FixCortexA53Ldflags}", 154 "exynos-m2": "${config.Arm64FixCortexA53Ldflags}", 155 } 156) 157 158type toolchainArm64 struct { 159 toolchainBionic 160 toolchain64Bit 161 162 ldflags string 163 lldflags string 164 toolchainCflags string 165} 166 167func (t *toolchainArm64) Name() string { 168 return "arm64" 169} 170 171func (t *toolchainArm64) IncludeFlags() string { 172 return "" 173} 174 175func (t *toolchainArm64) ClangTriple() string { 176 return "aarch64-linux-android" 177} 178 179func (t *toolchainArm64) Cflags() string { 180 return "${config.Arm64Cflags}" 181} 182 183func (t *toolchainArm64) Cppflags() string { 184 return "${config.Arm64Cppflags}" 185} 186 187func (t *toolchainArm64) Ldflags() string { 188 return t.ldflags 189} 190 191func (t *toolchainArm64) Lldflags() string { 192 return t.lldflags 193} 194 195func (t *toolchainArm64) ToolchainCflags() string { 196 return t.toolchainCflags 197} 198 199func (toolchainArm64) LibclangRuntimeLibraryArch() string { 200 return "aarch64" 201} 202 203func arm64ToolchainFactory(arch android.Arch) Toolchain { 204 // Error now rather than having a confusing Ninja error 205 if _, ok := arm64ArchVariantCflags[arch.ArchVariant]; !ok { 206 panic(fmt.Sprintf("Unknown ARM64 architecture version: %q", arch.ArchVariant)) 207 } 208 209 toolchainCflags := []string{"${config.Arm64" + arch.ArchVariant + "VariantCflags}"} 210 toolchainCflags = append(toolchainCflags, 211 variantOrDefault(arm64CpuVariantCflagsVar, arch.CpuVariant)) 212 213 extraLdflags := variantOrDefault(arm64CpuVariantLdflags, arch.CpuVariant) 214 return &toolchainArm64{ 215 ldflags: strings.Join([]string{ 216 "${config.Arm64Ldflags}", 217 extraLdflags, 218 }, " "), 219 lldflags: strings.Join([]string{ 220 "${config.Arm64Lldflags}", 221 extraLdflags, 222 }, " "), 223 toolchainCflags: strings.Join(toolchainCflags, " "), 224 } 225} 226 227func init() { 228 registerToolchainFactory(android.Android, android.Arm64, arm64ToolchainFactory) 229} 230