| // Copyright 2015 Google Inc. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package config |
| |
| import ( |
| "fmt" |
| "strings" |
| |
| "android/soong/android" |
| ) |
| |
| var ( |
| armToolchainCflags = []string{ |
| "-mthumb-interwork", |
| "-msoft-float", |
| } |
| |
| armCflags = []string{ |
| "-fomit-frame-pointer", |
| } |
| |
| armCppflags = []string{} |
| |
| armLdflags = []string{ |
| "-Wl,--hash-style=gnu", |
| "-Wl,-m,armelf", |
| } |
| |
| armLldflags = ClangFilterUnknownLldflags(armLdflags) |
| |
| armArmCflags = []string{ |
| "-fstrict-aliasing", |
| } |
| |
| armThumbCflags = []string{ |
| "-mthumb", |
| "-Os", |
| } |
| |
| armClangArchVariantCflags = map[string][]string{ |
| "armv7-a": []string{ |
| "-march=armv7-a", |
| "-mfloat-abi=softfp", |
| "-mfpu=vfpv3-d16", |
| }, |
| "armv7-a-neon": []string{ |
| "-march=armv7-a", |
| "-mfloat-abi=softfp", |
| "-mfpu=neon", |
| }, |
| "armv8-a": []string{ |
| "-march=armv8-a", |
| "-mfloat-abi=softfp", |
| "-mfpu=neon-fp-armv8", |
| }, |
| "armv8-2a": []string{ |
| "-march=armv8.2-a", |
| "-mfloat-abi=softfp", |
| "-mfpu=neon-fp-armv8", |
| }, |
| } |
| |
| armClangCpuVariantCflags = map[string][]string{ |
| "cortex-a7": []string{ |
| "-mcpu=cortex-a7", |
| "-mfpu=neon-vfpv4", |
| // Fake an ARM compiler flag as these processors support LPAE which GCC/clang |
| // don't advertise. |
| // TODO This is a hack and we need to add it for each processor that supports LPAE until some |
| // better solution comes around. See Bug 27340895 |
| "-D__ARM_FEATURE_LPAE=1", |
| }, |
| "cortex-a8": []string{ |
| "-mcpu=cortex-a8", |
| }, |
| "cortex-a15": []string{ |
| "-mcpu=cortex-a15", |
| "-mfpu=neon-vfpv4", |
| // Fake an ARM compiler flag as these processors support LPAE which GCC/clang |
| // don't advertise. |
| // TODO This is a hack and we need to add it for each processor that supports LPAE until some |
| // better solution comes around. See Bug 27340895 |
| "-D__ARM_FEATURE_LPAE=1", |
| }, |
| "cortex-a53": []string{ |
| "-mcpu=cortex-a53", |
| "-mfpu=neon-fp-armv8", |
| // Fake an ARM compiler flag as these processors support LPAE which GCC/clang |
| // don't advertise. |
| // TODO This is a hack and we need to add it for each processor that supports LPAE until some |
| // better solution comes around. See Bug 27340895 |
| "-D__ARM_FEATURE_LPAE=1", |
| }, |
| "cortex-a55": []string{ |
| "-mcpu=cortex-a55", |
| "-mfpu=neon-fp-armv8", |
| // Fake an ARM compiler flag as these processors support LPAE which GCC/clang |
| // don't advertise. |
| // TODO This is a hack and we need to add it for each processor that supports LPAE until some |
| // better solution comes around. See Bug 27340895 |
| "-D__ARM_FEATURE_LPAE=1", |
| }, |
| "cortex-a75": []string{ |
| "-mcpu=cortex-a55", |
| "-mfpu=neon-fp-armv8", |
| // Fake an ARM compiler flag as these processors support LPAE which GCC/clang |
| // don't advertise. |
| // TODO This is a hack and we need to add it for each processor that supports LPAE until some |
| // better solution comes around. See Bug 27340895 |
| "-D__ARM_FEATURE_LPAE=1", |
| }, |
| "cortex-a76": []string{ |
| "-mcpu=cortex-a55", |
| "-mfpu=neon-fp-armv8", |
| // Fake an ARM compiler flag as these processors support LPAE which GCC/clang |
| // don't advertise. |
| // TODO This is a hack and we need to add it for each processor that supports LPAE until some |
| // better solution comes around. See Bug 27340895 |
| "-D__ARM_FEATURE_LPAE=1", |
| }, |
| "krait": []string{ |
| "-mcpu=krait", |
| "-mfpu=neon-vfpv4", |
| // Fake an ARM compiler flag as these processors support LPAE which GCC/clang |
| // don't advertise. |
| // TODO This is a hack and we need to add it for each processor that supports LPAE until some |
| // better solution comes around. See Bug 27340895 |
| "-D__ARM_FEATURE_LPAE=1", |
| }, |
| "kryo": []string{ |
| // Use cortex-a53 because the GNU assembler doesn't recognize -mcpu=kryo |
| // even though clang does. |
| "-mcpu=cortex-a53", |
| "-mfpu=neon-fp-armv8", |
| // Fake an ARM compiler flag as these processors support LPAE which GCC/clang |
| // don't advertise. |
| // TODO This is a hack and we need to add it for each processor that supports LPAE until some |
| // better solution comes around. See Bug 27340895 |
| "-D__ARM_FEATURE_LPAE=1", |
| }, |
| "kryo385": []string{ |
| // Use cortex-a53 because kryo385 is not supported in GCC/clang. |
| "-mcpu=cortex-a53", |
| // Fake an ARM compiler flag as these processors support LPAE which GCC/clang |
| // don't advertise. |
| // TODO This is a hack and we need to add it for each processor that supports LPAE until some |
| // better solution comes around. See Bug 27340895 |
| "-D__ARM_FEATURE_LPAE=1", |
| }, |
| } |
| ) |
| |
| const ( |
| name = "arm" |
| armGccVersion = "4.9" |
| gccTriple = "arm-linux-androideabi" |
| clangTriple = "armv7a-linux-androideabi" |
| ) |
| |
| func init() { |
| pctx.StaticVariable("armGccVersion", armGccVersion) |
| |
| pctx.SourcePathVariable("ArmGccRoot", "prebuilts/gcc/${HostPrebuiltTag}/arm/arm-linux-androideabi-${armGccVersion}") |
| |
| // Just exported. Not created as a Ninja static variable. |
| exportedStringVars.Set("ArmClangTriple", clangTriple) |
| |
| exportStringListStaticVariable("ArmLdflags", armLdflags) |
| exportStringListStaticVariable("ArmLldflags", armLldflags) |
| |
| // Clang cflags |
| exportStringListStaticVariable("ArmToolchainClangCflags", ClangFilterUnknownCflags(armToolchainCflags)) |
| exportStringListStaticVariable("ArmClangCflags", ClangFilterUnknownCflags(armCflags)) |
| exportStringListStaticVariable("ArmClangLdflags", ClangFilterUnknownCflags(armLdflags)) |
| exportStringListStaticVariable("ArmClangLldflags", ClangFilterUnknownCflags(armLldflags)) |
| exportStringListStaticVariable("ArmClangCppflags", ClangFilterUnknownCflags(armCppflags)) |
| |
| // Clang ARM vs. Thumb instruction set cflags |
| exportStringListStaticVariable("ArmClangArmCflags", ClangFilterUnknownCflags(armArmCflags)) |
| exportStringListStaticVariable("ArmClangThumbCflags", ClangFilterUnknownCflags(armThumbCflags)) |
| |
| // Clang arch variant cflags |
| exportStringListStaticVariable("ArmClangArmv7ACflags", armClangArchVariantCflags["armv7-a"]) |
| exportStringListStaticVariable("ArmClangArmv7ANeonCflags", armClangArchVariantCflags["armv7-a-neon"]) |
| exportStringListStaticVariable("ArmClangArmv8ACflags", armClangArchVariantCflags["armv8-a"]) |
| exportStringListStaticVariable("ArmClangArmv82ACflags", armClangArchVariantCflags["armv8-2a"]) |
| |
| // Clang cpu variant cflags |
| exportStringListStaticVariable("ArmClangGenericCflags", armClangCpuVariantCflags[""]) |
| exportStringListStaticVariable("ArmClangCortexA7Cflags", armClangCpuVariantCflags["cortex-a7"]) |
| exportStringListStaticVariable("ArmClangCortexA8Cflags", armClangCpuVariantCflags["cortex-a8"]) |
| exportStringListStaticVariable("ArmClangCortexA15Cflags", armClangCpuVariantCflags["cortex-a15"]) |
| exportStringListStaticVariable("ArmClangCortexA53Cflags", armClangCpuVariantCflags["cortex-a53"]) |
| exportStringListStaticVariable("ArmClangCortexA55Cflags", armClangCpuVariantCflags["cortex-a55"]) |
| exportStringListStaticVariable("ArmClangKraitCflags", armClangCpuVariantCflags["krait"]) |
| exportStringListStaticVariable("ArmClangKryoCflags", armClangCpuVariantCflags["kryo"]) |
| } |
| |
| var ( |
| armClangArchVariantCflagsVar = map[string]string{ |
| "armv7-a": "${config.ArmClangArmv7ACflags}", |
| "armv7-a-neon": "${config.ArmClangArmv7ANeonCflags}", |
| "armv8-a": "${config.ArmClangArmv8ACflags}", |
| "armv8-2a": "${config.ArmClangArmv82ACflags}", |
| } |
| |
| armClangCpuVariantCflagsVar = map[string]string{ |
| "": "${config.ArmClangGenericCflags}", |
| "cortex-a7": "${config.ArmClangCortexA7Cflags}", |
| "cortex-a8": "${config.ArmClangCortexA8Cflags}", |
| "cortex-a15": "${config.ArmClangCortexA15Cflags}", |
| "cortex-a53": "${config.ArmClangCortexA53Cflags}", |
| "cortex-a53.a57": "${config.ArmClangCortexA53Cflags}", |
| "cortex-a55": "${config.ArmClangCortexA55Cflags}", |
| "cortex-a72": "${config.ArmClangCortexA53Cflags}", |
| "cortex-a73": "${config.ArmClangCortexA53Cflags}", |
| "cortex-a75": "${config.ArmClangCortexA55Cflags}", |
| "cortex-a76": "${config.ArmClangCortexA55Cflags}", |
| "krait": "${config.ArmClangKraitCflags}", |
| "kryo": "${config.ArmClangKryoCflags}", |
| "kryo385": "${config.ArmClangCortexA53Cflags}", |
| "exynos-m1": "${config.ArmClangCortexA53Cflags}", |
| "exynos-m2": "${config.ArmClangCortexA53Cflags}", |
| } |
| ) |
| |
| type toolchainArm struct { |
| toolchain32Bit |
| ldflags string |
| lldflags string |
| toolchainClangCflags string |
| } |
| |
| func (t *toolchainArm) Name() string { |
| return name |
| } |
| |
| func (t *toolchainArm) GccRoot() string { |
| return "${config.ArmGccRoot}" |
| } |
| |
| func (t *toolchainArm) GccTriple() string { |
| return gccTriple |
| } |
| |
| func (t *toolchainArm) GccVersion() string { |
| return armGccVersion |
| } |
| |
| func (t *toolchainArm) IncludeFlags() string { |
| return "" |
| } |
| |
| func (t *toolchainArm) ClangTriple() string { |
| // http://b/72619014 work around llvm LTO bug. |
| return clangTriple |
| } |
| |
| func (t *toolchainArm) ndkTriple() string { |
| // Use current NDK include path, while ClangTriple is changed. |
| return t.GccTriple() |
| } |
| |
| func (t *toolchainArm) ToolchainClangCflags() string { |
| return t.toolchainClangCflags |
| } |
| |
| func (t *toolchainArm) ClangCflags() string { |
| return "${config.ArmClangCflags}" |
| } |
| |
| func (t *toolchainArm) ClangCppflags() string { |
| return "${config.ArmClangCppflags}" |
| } |
| |
| func (t *toolchainArm) ClangLdflags() string { |
| return t.ldflags |
| } |
| |
| func (t *toolchainArm) ClangLldflags() string { |
| return t.lldflags // TODO: handle V8 cases |
| } |
| |
| func (t *toolchainArm) ClangInstructionSetFlags(isa string) (string, error) { |
| switch isa { |
| case "arm": |
| return "${config.ArmClangArmCflags}", nil |
| case "thumb", "": |
| return "${config.ArmClangThumbCflags}", nil |
| default: |
| return t.toolchainBase.ClangInstructionSetFlags(isa) |
| } |
| } |
| |
| func (toolchainArm) LibclangRuntimeLibraryArch() string { |
| return name |
| } |
| |
| func armToolchainFactory(arch android.Arch) Toolchain { |
| var fixCortexA8 string |
| toolchainClangCflags := make([]string, 2, 3) |
| |
| toolchainClangCflags[0] = "${config.ArmToolchainClangCflags}" |
| toolchainClangCflags[1] = armClangArchVariantCflagsVar[arch.ArchVariant] |
| |
| toolchainClangCflags = append(toolchainClangCflags, |
| variantOrDefault(armClangCpuVariantCflagsVar, arch.CpuVariant)) |
| |
| switch arch.ArchVariant { |
| case "armv7-a-neon": |
| switch arch.CpuVariant { |
| case "cortex-a8", "": |
| // Generic ARM might be a Cortex A8 -- better safe than sorry |
| fixCortexA8 = "-Wl,--fix-cortex-a8" |
| default: |
| fixCortexA8 = "-Wl,--no-fix-cortex-a8" |
| } |
| case "armv7-a": |
| fixCortexA8 = "-Wl,--fix-cortex-a8" |
| case "armv8-a", "armv8-2a": |
| // Nothing extra for armv8-a/armv8-2a |
| default: |
| panic(fmt.Sprintf("Unknown ARM architecture version: %q", arch.ArchVariant)) |
| } |
| |
| return &toolchainArm{ |
| ldflags: strings.Join([]string{ |
| "${config.ArmLdflags}", |
| fixCortexA8, |
| }, " "), |
| lldflags: "${config.ArmLldflags}", |
| toolchainClangCflags: strings.Join(toolchainClangCflags, " "), |
| } |
| } |
| |
| func init() { |
| registerToolchainFactory(android.Android, android.Arm, armToolchainFactory) |
| } |
