41ab2519b4
They are now explicit in the Bionic blueprints, and brought in through dependencies on libc (which in turn is usually implicit through the default system_shared_libs value). Modules that may break are cc_object which don't depend on system_shared_libs, and those that explicitly set system_shared_libs:[] but still assumes libc headers. In either case the fix should be to add header_libs:["libc_headers"]. Test: Build and boot Test: m checkbuild (on aosp_taimen and aosp_x86_64) Bug: 153590472 Change-Id: I3217d8f36e49a987f5377866c8647f9dcccc37ce
358 lines
11 KiB
Go
358 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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"-mthumb-interwork",
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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,--icf=safe",
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"-Wl,--hash-style=gnu",
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"-Wl,-m,armelf",
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}
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armLldflags = ClangFilterUnknownLldflags(armLdflags)
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armArmCflags = []string{
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"-fstrict-aliasing",
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}
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armThumbCflags = []string{
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"-mthumb",
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"-Os",
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}
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armClangArchVariantCflags = 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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armClangCpuVariantCflags = 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 GCC/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 GCC/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 GCC/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 GCC/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 GCC/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 GCC/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 GCC/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 GCC/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 GCC/clang.
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"-mcpu=cortex-a53",
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// Fake an ARM compiler flag as these processors support LPAE which GCC/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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armGccVersion = "4.9"
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)
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func init() {
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pctx.StaticVariable("armGccVersion", armGccVersion)
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pctx.SourcePathVariable("ArmGccRoot",
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"prebuilts/gcc/${HostPrebuiltTag}/arm/arm-linux-androideabi-${armGccVersion}")
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pctx.StaticVariable("ArmLdflags", strings.Join(armLdflags, " "))
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pctx.StaticVariable("ArmLldflags", strings.Join(armLldflags, " "))
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// Clang cflags
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pctx.StaticVariable("ArmToolchainClangCflags", strings.Join(ClangFilterUnknownCflags(armToolchainCflags), " "))
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pctx.StaticVariable("ArmClangCflags", strings.Join(ClangFilterUnknownCflags(armCflags), " "))
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pctx.StaticVariable("ArmClangLdflags", strings.Join(ClangFilterUnknownCflags(armLdflags), " "))
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pctx.StaticVariable("ArmClangLldflags", strings.Join(ClangFilterUnknownCflags(armLldflags), " "))
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pctx.StaticVariable("ArmClangCppflags", strings.Join(ClangFilterUnknownCflags(armCppflags), " "))
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// Clang ARM vs. Thumb instruction set cflags
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pctx.StaticVariable("ArmClangArmCflags", strings.Join(ClangFilterUnknownCflags(armArmCflags), " "))
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pctx.StaticVariable("ArmClangThumbCflags", strings.Join(ClangFilterUnknownCflags(armThumbCflags), " "))
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// Clang arch variant cflags
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pctx.StaticVariable("ArmClangArmv7ACflags",
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strings.Join(armClangArchVariantCflags["armv7-a"], " "))
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pctx.StaticVariable("ArmClangArmv7ANeonCflags",
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strings.Join(armClangArchVariantCflags["armv7-a-neon"], " "))
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pctx.StaticVariable("ArmClangArmv8ACflags",
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strings.Join(armClangArchVariantCflags["armv8-a"], " "))
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pctx.StaticVariable("ArmClangArmv82ACflags",
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strings.Join(armClangArchVariantCflags["armv8-2a"], " "))
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// Clang cpu variant cflags
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pctx.StaticVariable("ArmClangGenericCflags",
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strings.Join(armClangCpuVariantCflags[""], " "))
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pctx.StaticVariable("ArmClangCortexA7Cflags",
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strings.Join(armClangCpuVariantCflags["cortex-a7"], " "))
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pctx.StaticVariable("ArmClangCortexA8Cflags",
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strings.Join(armClangCpuVariantCflags["cortex-a8"], " "))
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pctx.StaticVariable("ArmClangCortexA15Cflags",
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strings.Join(armClangCpuVariantCflags["cortex-a15"], " "))
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pctx.StaticVariable("ArmClangCortexA53Cflags",
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strings.Join(armClangCpuVariantCflags["cortex-a53"], " "))
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pctx.StaticVariable("ArmClangCortexA55Cflags",
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strings.Join(armClangCpuVariantCflags["cortex-a55"], " "))
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pctx.StaticVariable("ArmClangKraitCflags",
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strings.Join(armClangCpuVariantCflags["krait"], " "))
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pctx.StaticVariable("ArmClangKryoCflags",
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strings.Join(armClangCpuVariantCflags["kryo"], " "))
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}
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var (
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armClangArchVariantCflagsVar = map[string]string{
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"armv7-a": "${config.ArmClangArmv7ACflags}",
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"armv7-a-neon": "${config.ArmClangArmv7ANeonCflags}",
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"armv8-a": "${config.ArmClangArmv8ACflags}",
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"armv8-2a": "${config.ArmClangArmv82ACflags}",
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}
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armClangCpuVariantCflagsVar = map[string]string{
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"": "${config.ArmClangGenericCflags}",
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"cortex-a7": "${config.ArmClangCortexA7Cflags}",
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"cortex-a8": "${config.ArmClangCortexA8Cflags}",
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"cortex-a15": "${config.ArmClangCortexA15Cflags}",
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"cortex-a53": "${config.ArmClangCortexA53Cflags}",
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"cortex-a53.a57": "${config.ArmClangCortexA53Cflags}",
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"cortex-a55": "${config.ArmClangCortexA55Cflags}",
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"cortex-a72": "${config.ArmClangCortexA53Cflags}",
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"cortex-a73": "${config.ArmClangCortexA53Cflags}",
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"cortex-a75": "${config.ArmClangCortexA55Cflags}",
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"cortex-a76": "${config.ArmClangCortexA55Cflags}",
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"krait": "${config.ArmClangKraitCflags}",
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"kryo": "${config.ArmClangKryoCflags}",
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"kryo385": "${config.ArmClangCortexA53Cflags}",
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"exynos-m1": "${config.ArmClangCortexA53Cflags}",
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"exynos-m2": "${config.ArmClangCortexA53Cflags}",
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}
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)
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type toolchainArm struct {
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toolchain32Bit
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ldflags string
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lldflags string
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toolchainClangCflags string
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}
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func (t *toolchainArm) Name() string {
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return "arm"
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}
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func (t *toolchainArm) GccRoot() string {
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return "${config.ArmGccRoot}"
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}
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func (t *toolchainArm) GccTriple() string {
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return "arm-linux-androideabi"
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}
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func (t *toolchainArm) GccVersion() string {
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return armGccVersion
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}
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func (t *toolchainArm) IncludeFlags() string {
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return ""
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}
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func (t *toolchainArm) ClangTriple() string {
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// http://b/72619014 work around llvm LTO bug.
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return "armv7a-linux-androideabi"
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}
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func (t *toolchainArm) ndkTriple() string {
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// Use current NDK include path, while ClangTriple is changed.
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return t.GccTriple()
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}
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func (t *toolchainArm) ToolchainClangCflags() string {
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return t.toolchainClangCflags
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}
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func (t *toolchainArm) ClangCflags() string {
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return "${config.ArmClangCflags}"
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}
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func (t *toolchainArm) ClangCppflags() string {
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return "${config.ArmClangCppflags}"
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}
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func (t *toolchainArm) ClangLdflags() string {
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return t.ldflags
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}
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func (t *toolchainArm) ClangLldflags() string {
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return t.lldflags // TODO: handle V8 cases
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}
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func (t *toolchainArm) ClangInstructionSetFlags(isa string) (string, error) {
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switch isa {
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case "arm":
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return "${config.ArmClangArmCflags}", nil
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case "thumb", "":
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return "${config.ArmClangThumbCflags}", nil
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default:
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return t.toolchainBase.ClangInstructionSetFlags(isa)
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}
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}
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func (toolchainArm) LibclangRuntimeLibraryArch() string {
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return "arm"
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}
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func armToolchainFactory(arch android.Arch) Toolchain {
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var fixCortexA8 string
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toolchainClangCflags := make([]string, 2, 3)
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toolchainClangCflags[0] = "${config.ArmToolchainClangCflags}"
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toolchainClangCflags[1] = armClangArchVariantCflagsVar[arch.ArchVariant]
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toolchainClangCflags = append(toolchainClangCflags,
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variantOrDefault(armClangCpuVariantCflagsVar, 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 = "-Wl,--fix-cortex-a8"
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default:
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fixCortexA8 = "-Wl,--no-fix-cortex-a8"
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}
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case "armv7-a":
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fixCortexA8 = "-Wl,--fix-cortex-a8"
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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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toolchainClangCflags: strings.Join(toolchainClangCflags, " "),
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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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