23cc4aa7aa
- ARM 32-bit targets will be built with 4096 ELF alignment.
- ARM 32-bit targets will only support 4K Page sizes.
- ARM 32-bit targets won't be page agnostic.
Test: source build/envsetup.sh
lunch aosp_cf_x86_64_phone
m
Bug: 295550555
Change-Id: I61cc45fa5f2ea18c494dfc9a0ca44cf9b694dfa3
351 lines
11 KiB
Go
351 lines
11 KiB
Go
// Copyright 2015 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package config
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import (
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"fmt"
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"strings"
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"android/soong/android"
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)
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var (
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armToolchainCflags = []string{
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"-msoft-float",
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}
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armCflags = []string{
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"-fomit-frame-pointer",
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}
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armCppflags = []string{}
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armLdflags = []string{
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"-Wl,--hash-style=gnu",
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"-Wl,-m,armelf",
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}
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armLldflags = armLdflags
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armFixCortexA8LdFlags = []string{"-Wl,--fix-cortex-a8"}
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armNoFixCortexA8LdFlags = []string{"-Wl,--no-fix-cortex-a8"}
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armArmCflags = []string{}
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armThumbCflags = []string{
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"-mthumb",
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"-Os",
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}
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armArchVariantCflags = map[string][]string{
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"armv7-a": []string{
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"-march=armv7-a",
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"-mfloat-abi=softfp",
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"-mfpu=vfpv3-d16",
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},
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"armv7-a-neon": []string{
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"-march=armv7-a",
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"-mfloat-abi=softfp",
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"-mfpu=neon",
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},
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"armv8-a": []string{
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"-march=armv8-a",
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"-mfloat-abi=softfp",
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"-mfpu=neon-fp-armv8",
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},
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"armv8-2a": []string{
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"-march=armv8.2-a",
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"-mfloat-abi=softfp",
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"-mfpu=neon-fp-armv8",
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},
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}
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armCpuVariantCflags = map[string][]string{
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"cortex-a7": []string{
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"-mcpu=cortex-a7",
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"-mfpu=neon-vfpv4",
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// Fake an ARM compiler flag as these processors support LPAE which clang
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// don't advertise.
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// TODO This is a hack and we need to add it for each processor that supports LPAE until some
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// better solution comes around. See Bug 27340895
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"-D__ARM_FEATURE_LPAE=1",
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},
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"cortex-a8": []string{
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"-mcpu=cortex-a8",
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},
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"cortex-a15": []string{
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"-mcpu=cortex-a15",
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"-mfpu=neon-vfpv4",
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// Fake an ARM compiler flag as these processors support LPAE which clang
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// don't advertise.
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// TODO This is a hack and we need to add it for each processor that supports LPAE until some
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// better solution comes around. See Bug 27340895
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"-D__ARM_FEATURE_LPAE=1",
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},
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"cortex-a32": []string{
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"-mcpu=cortex-a32",
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"-mfpu=neon-vfpv4",
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// Fake an ARM compiler flag as these processors support LPAE which clang
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// don't advertise.
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// TODO This is a hack and we need to add it for each processor that supports LPAE until some
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// better solution comes around. See Bug 27340895
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"-D__ARM_FEATURE_LPAE=1",
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},
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"cortex-a53": []string{
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"-mcpu=cortex-a53",
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"-mfpu=neon-fp-armv8",
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// Fake an ARM compiler flag as these processors support LPAE which clang
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// don't advertise.
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// TODO This is a hack and we need to add it for each processor that supports LPAE until some
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// better solution comes around. See Bug 27340895
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"-D__ARM_FEATURE_LPAE=1",
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},
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"cortex-a55": []string{
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"-mcpu=cortex-a55",
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"-mfpu=neon-fp-armv8",
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// Fake an ARM compiler flag as these processors support LPAE which clang
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// don't advertise.
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// TODO This is a hack and we need to add it for each processor that supports LPAE until some
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// better solution comes around. See Bug 27340895
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"-D__ARM_FEATURE_LPAE=1",
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},
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"cortex-a75": []string{
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"-mcpu=cortex-a55",
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"-mfpu=neon-fp-armv8",
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// Fake an ARM compiler flag as these processors support LPAE which clang
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// don't advertise.
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// TODO This is a hack and we need to add it for each processor that supports LPAE until some
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// better solution comes around. See Bug 27340895
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"-D__ARM_FEATURE_LPAE=1",
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},
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"cortex-a76": []string{
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"-mcpu=cortex-a55",
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"-mfpu=neon-fp-armv8",
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// Fake an ARM compiler flag as these processors support LPAE which clang
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// don't advertise.
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// TODO This is a hack and we need to add it for each processor that supports LPAE until some
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// better solution comes around. See Bug 27340895
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"-D__ARM_FEATURE_LPAE=1",
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},
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"krait": []string{
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"-mcpu=krait",
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"-mfpu=neon-vfpv4",
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// Fake an ARM compiler flag as these processors support LPAE which clang
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// don't advertise.
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// TODO This is a hack and we need to add it for each processor that supports LPAE until some
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// better solution comes around. See Bug 27340895
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"-D__ARM_FEATURE_LPAE=1",
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},
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"kryo": []string{
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// Use cortex-a53 because the GNU assembler doesn't recognize -mcpu=kryo
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// even though clang does.
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"-mcpu=cortex-a53",
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"-mfpu=neon-fp-armv8",
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// Fake an ARM compiler flag as these processors support LPAE which clang
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// don't advertise.
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// TODO This is a hack and we need to add it for each processor that supports LPAE until some
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// better solution comes around. See Bug 27340895
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"-D__ARM_FEATURE_LPAE=1",
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},
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"kryo385": []string{
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// Use cortex-a53 because kryo385 is not supported in clang.
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"-mcpu=cortex-a53",
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// Fake an ARM compiler flag as these processors support LPAE which clang
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// don't advertise.
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// TODO This is a hack and we need to add it for each processor that supports LPAE until some
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// better solution comes around. See Bug 27340895
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"-D__ARM_FEATURE_LPAE=1",
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},
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}
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)
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const (
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name = "arm"
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ndkTriple = "arm-linux-androideabi"
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clangTriple = "armv7a-linux-androideabi"
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)
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func init() {
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// Just exported. Not created as a Ninja static variable.
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exportedVars.ExportString("ArmClangTriple", clangTriple)
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exportedVars.ExportStringListStaticVariable("ArmLdflags", armLdflags)
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exportedVars.ExportStringListStaticVariable("ArmLldflags", armLldflags)
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exportedVars.ExportStringListStaticVariable("ArmFixCortexA8LdFlags", armFixCortexA8LdFlags)
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exportedVars.ExportStringListStaticVariable("ArmNoFixCortexA8LdFlags", armNoFixCortexA8LdFlags)
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// Clang cflags
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exportedVars.ExportStringListStaticVariable("ArmToolchainCflags", armToolchainCflags)
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exportedVars.ExportStringListStaticVariable("ArmCflags", armCflags)
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exportedVars.ExportStringListStaticVariable("ArmCppflags", armCppflags)
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// Clang ARM vs. Thumb instruction set cflags
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exportedVars.ExportStringListStaticVariable("ArmArmCflags", armArmCflags)
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exportedVars.ExportStringListStaticVariable("ArmThumbCflags", armThumbCflags)
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exportedVars.ExportVariableReferenceDict("ArmArchVariantCflags", armArchVariantCflagsVar)
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exportedVars.ExportVariableReferenceDict("ArmCpuVariantCflags", armCpuVariantCflagsVar)
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// Clang arch variant cflags
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exportedVars.ExportStringListStaticVariable("ArmArmv7ACflags", armArchVariantCflags["armv7-a"])
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exportedVars.ExportStringListStaticVariable("ArmArmv7ANeonCflags", armArchVariantCflags["armv7-a-neon"])
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exportedVars.ExportStringListStaticVariable("ArmArmv8ACflags", armArchVariantCflags["armv8-a"])
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exportedVars.ExportStringListStaticVariable("ArmArmv82ACflags", armArchVariantCflags["armv8-2a"])
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// Clang cpu variant cflags
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exportedVars.ExportStringListStaticVariable("ArmGenericCflags", armCpuVariantCflags[""])
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exportedVars.ExportStringListStaticVariable("ArmCortexA7Cflags", armCpuVariantCflags["cortex-a7"])
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exportedVars.ExportStringListStaticVariable("ArmCortexA8Cflags", armCpuVariantCflags["cortex-a8"])
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exportedVars.ExportStringListStaticVariable("ArmCortexA15Cflags", armCpuVariantCflags["cortex-a15"])
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exportedVars.ExportStringListStaticVariable("ArmCortexA32Cflags", armCpuVariantCflags["cortex-a32"])
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exportedVars.ExportStringListStaticVariable("ArmCortexA53Cflags", armCpuVariantCflags["cortex-a53"])
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exportedVars.ExportStringListStaticVariable("ArmCortexA55Cflags", armCpuVariantCflags["cortex-a55"])
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exportedVars.ExportStringListStaticVariable("ArmKraitCflags", armCpuVariantCflags["krait"])
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exportedVars.ExportStringListStaticVariable("ArmKryoCflags", armCpuVariantCflags["kryo"])
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}
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var (
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armArchVariantCflagsVar = map[string]string{
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"armv7-a": "${config.ArmArmv7ACflags}",
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"armv7-a-neon": "${config.ArmArmv7ANeonCflags}",
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"armv8-a": "${config.ArmArmv8ACflags}",
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"armv8-2a": "${config.ArmArmv82ACflags}",
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}
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armCpuVariantCflagsVar = map[string]string{
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"": "${config.ArmGenericCflags}",
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"cortex-a7": "${config.ArmCortexA7Cflags}",
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"cortex-a8": "${config.ArmCortexA8Cflags}",
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"cortex-a9": "${config.ArmGenericCflags}",
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"cortex-a15": "${config.ArmCortexA15Cflags}",
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"cortex-a32": "${config.ArmCortexA32Cflags}",
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"cortex-a53": "${config.ArmCortexA53Cflags}",
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"cortex-a53.a57": "${config.ArmCortexA53Cflags}",
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"cortex-a55": "${config.ArmCortexA55Cflags}",
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"cortex-a72": "${config.ArmCortexA53Cflags}",
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"cortex-a73": "${config.ArmCortexA53Cflags}",
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"cortex-a75": "${config.ArmCortexA55Cflags}",
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"cortex-a76": "${config.ArmCortexA55Cflags}",
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"krait": "${config.ArmKraitCflags}",
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"kryo": "${config.ArmKryoCflags}",
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"kryo385": "${config.ArmCortexA53Cflags}",
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"exynos-m1": "${config.ArmCortexA53Cflags}",
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"exynos-m2": "${config.ArmCortexA53Cflags}",
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}
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)
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type toolchainArm struct {
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toolchainBionic
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toolchain32Bit
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ldflags string
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lldflags string
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toolchainCflags string
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}
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func (t *toolchainArm) Name() string {
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return name
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}
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func (t *toolchainArm) IncludeFlags() string {
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return ""
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}
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func (t *toolchainArm) ClangTriple() string {
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// http://b/72619014 work around llvm LTO bug.
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return clangTriple
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}
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func (t *toolchainArm) ndkTriple() string {
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// Use current NDK include path, while ClangTriple is changed.
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return ndkTriple
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}
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func (t *toolchainArm) ToolchainCflags() string {
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return t.toolchainCflags
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}
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func (t *toolchainArm) Cflags() string {
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return "${config.ArmCflags}"
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}
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func (t *toolchainArm) Cppflags() string {
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return "${config.ArmCppflags}"
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}
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func (t *toolchainArm) Ldflags() string {
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return t.ldflags
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}
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func (t *toolchainArm) Lldflags() string {
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return t.lldflags // TODO: handle V8 cases
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}
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func (t *toolchainArm) InstructionSetFlags(isa string) (string, error) {
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switch isa {
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case "arm":
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return "${config.ArmArmCflags}", nil
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case "thumb", "":
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return "${config.ArmThumbCflags}", nil
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default:
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return t.toolchainBase.InstructionSetFlags(isa)
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}
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}
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func (toolchainArm) LibclangRuntimeLibraryArch() string {
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return name
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}
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func armToolchainFactory(arch android.Arch) Toolchain {
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var fixCortexA8 string
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toolchainCflags := make([]string, 2, 3)
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toolchainCflags[0] = "${config.ArmToolchainCflags}"
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toolchainCflags[1] = armArchVariantCflagsVar[arch.ArchVariant]
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toolchainCflags = append(toolchainCflags,
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variantOrDefault(armCpuVariantCflagsVar, arch.CpuVariant))
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switch arch.ArchVariant {
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case "armv7-a-neon":
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switch arch.CpuVariant {
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case "cortex-a8", "":
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// Generic ARM might be a Cortex A8 -- better safe than sorry
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fixCortexA8 = "${config.ArmFixCortexA8LdFlags}"
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default:
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fixCortexA8 = "${config.ArmNoFixCortexA8LdFlags}"
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}
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case "armv7-a":
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fixCortexA8 = "${config.ArmFixCortexA8LdFlags}"
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case "armv8-a", "armv8-2a":
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// Nothing extra for armv8-a/armv8-2a
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default:
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panic(fmt.Sprintf("Unknown ARM architecture version: %q", arch.ArchVariant))
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}
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return &toolchainArm{
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ldflags: strings.Join([]string{
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"${config.ArmLdflags}",
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fixCortexA8,
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}, " "),
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lldflags: "${config.ArmLldflags}",
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toolchainCflags: strings.Join(toolchainCflags, " "),
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}
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}
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func init() {
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registerToolchainFactory(android.Android, android.Arm, armToolchainFactory)
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}
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