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//
// Copyright (C) 2017 The Android Open Source Project
//
// 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 clangprebuilts
import (
"fmt"
"path"
"strings"
"github.com/google/blueprint/proptools"
"android/soong/android"
"android/soong/cc"
"android/soong/cc/config"
"android/soong/genrule"
)
const libLLVMSoFormat = "libLLVM-%sgit.so"
const libclangSoFormat = "libclang.so.%sgit"
const libclangCxxSoFormat = "libclang_cxx.so.%sgit"
const libcxxSoName = "libc++.so.1"
const libcxxabiSoName = "libc++abi.so.1"
const libxml2SoName = "libxml2.so.2.9.10"
// This module is used to generate libfuzzer, libomp static libraries and
// libclang_rt.* shared libraries. When LLVM_PREBUILTS_VERSION and
// LLVM_RELEASE_VERSION are set, the library will generated from the given
// path.
func init() {
android.RegisterModuleType("llvm_host_defaults",
llvmHostDefaultsFactory)
android.RegisterModuleType("llvm_host_prebuilt_library_shared",
llvmHostPrebuiltLibrarySharedFactory)
android.RegisterModuleType("llvm_prebuilt_library_static",
llvmPrebuiltLibraryStaticFactory)
android.RegisterModuleType("libclang_rt_prebuilt_library_shared",
libClangRtPrebuiltLibrarySharedFactory)
android.RegisterModuleType("libclang_rt_prebuilt_library_static",
libClangRtPrebuiltLibraryStaticFactory)
android.RegisterModuleType("llvm_darwin_filegroup",
llvmDarwinFileGroupFactory)
android.RegisterModuleType("clang_builtin_headers",
clangBuiltinHeadersFactory)
}
func getClangPrebuiltDir(ctx android.LoadHookContext) string {
return path.Join(
"./",
ctx.AConfig().GetenvWithDefault("LLVM_PREBUILTS_VERSION", config.ClangDefaultVersion),
)
}
func getClangResourceDir(ctx android.LoadHookContext) string {
clangDir := getClangPrebuiltDir(ctx)
releaseVersion := ctx.AConfig().GetenvWithDefault("LLVM_RELEASE_VERSION",
config.ClangDefaultShortVersion)
return path.Join(clangDir, "lib64", "clang", releaseVersion, "lib", "linux")
}
func getSymbolFilePath(ctx android.LoadHookContext) string {
libDir := getClangResourceDir(ctx)
return path.Join(libDir, strings.TrimSuffix(ctx.ModuleName(), ".llndk")+".map.txt")
}
func trimVersionNumbers(ver string, retain int) string {
sep := "."
versions := strings.Split(ver, sep)
return strings.Join(versions[0:retain], sep)
}
func getHostLibrary(ctx android.LoadHookContext) string {
releaseVersion := ctx.AConfig().GetenvWithDefault("LLVM_RELEASE_VERSION",
config.ClangDefaultShortVersion)
switch ctx.ModuleName() {
case "prebuilt_libLLVM_host":
versionStr := trimVersionNumbers(releaseVersion, 1)
return fmt.Sprintf(libLLVMSoFormat, versionStr)
case "prebuilt_libclang_host":
versionStr := trimVersionNumbers(releaseVersion, 1)
return fmt.Sprintf(libclangSoFormat, versionStr)
case "prebuilt_libclang_cxx_host":
versionStr := trimVersionNumbers(releaseVersion, 1)
return fmt.Sprintf(libclangCxxSoFormat, versionStr)
case "prebuilt_libc++_host":
return libcxxSoName
case "prebuilt_libc++abi_host":
return libcxxabiSoName
case "prebuilt_libxml2_host":
return libxml2SoName
default:
ctx.ModuleErrorf("unsupported host LLVM module: " + ctx.ModuleName())
return ""
}
}
func llvmHostPrebuiltLibraryShared(ctx android.LoadHookContext) {
moduleName := ctx.ModuleName()
enabled := ctx.AConfig().IsEnvTrue("LLVM_BUILD_HOST_TOOLS")
clangDir := getClangPrebuiltDir(ctx)
headerDir := path.Join(clangDir, "include")
if moduleName == "prebuilt_libc++_host" {
headerDir = path.Join(headerDir, "c++", "v1")
}
linuxLibrary := path.Join(clangDir, "lib64", getHostLibrary(ctx))
darwinFileGroup := strings.TrimSuffix(strings.TrimPrefix(
moduleName, "prebuilt_"), "_host") + "_darwin"
type props struct {
Enabled *bool
Export_include_dirs []string
Target struct {
Linux_glibc_x86_64 struct {
Srcs []string
}
Darwin_x86_64 struct {
Srcs []string
}
Windows struct {
Enabled *bool
}
}
Stl *string
}
p := &props{}
p.Enabled = proptools.BoolPtr(enabled)
p.Export_include_dirs = []string{headerDir}
p.Target.Linux_glibc_x86_64.Srcs = []string{linuxLibrary}
p.Target.Darwin_x86_64.Srcs = []string{":" + darwinFileGroup}
p.Target.Windows.Enabled = proptools.BoolPtr(false)
p.Stl = proptools.StringPtr("none")
ctx.AppendProperties(p)
}
type archProps struct {
Android_arm struct {
Srcs []string
}
Android_arm64 struct {
Srcs []string
}
Android_x86 struct {
Srcs []string
}
Android_x86_64 struct {
Srcs []string
}
Linux_bionic_arm64 struct {
Srcs []string
}
Linux_bionic_x86_64 struct {
Srcs []string
}
}
func llvmPrebuiltLibraryStatic(ctx android.LoadHookContext) {
libDir := getClangResourceDir(ctx)
name := strings.TrimPrefix(ctx.ModuleName(), "prebuilt_") + ".a"
type props struct {
Export_include_dirs []string
Target archProps
}
p := &props{}
if name == "libFuzzer.a" {
headerDir := path.Join(getClangPrebuiltDir(ctx), "prebuilt_include", "llvm", "lib", "Fuzzer")
p.Export_include_dirs = []string{headerDir}
}
p.Target.Android_arm.Srcs = []string{path.Join(libDir, "arm", name)}
p.Target.Android_arm64.Srcs = []string{path.Join(libDir, "aarch64", name)}
p.Target.Android_x86.Srcs = []string{path.Join(libDir, "i386", name)}
p.Target.Android_x86_64.Srcs = []string{path.Join(libDir, "x86_64", name)}
p.Target.Linux_bionic_arm64.Srcs = []string{path.Join(libDir, "aarch64", name)}
p.Target.Linux_bionic_x86_64.Srcs = []string{path.Join(libDir, "x86_64", name)}
ctx.AppendProperties(p)
}
type prebuiltLibrarySharedProps struct {
Is_llndk *bool
Shared_libs []string
}
func libClangRtPrebuiltLibraryShared(ctx android.LoadHookContext, in *prebuiltLibrarySharedProps) {
if ctx.AConfig().IsEnvTrue("FORCE_BUILD_SANITIZER_SHARED_OBJECTS") {
return
}
libDir := getClangResourceDir(ctx)
type props struct {
Srcs []string
System_shared_libs []string
No_libcrt *bool
Sanitize struct {
Never *bool
}
Strip struct {
None *bool
}
Pack_relocations *bool
Stl *string
Stubs struct {
Symbol_file *string
Versions []string
}
Llndk struct {
Symbol_file *string
}
}
p := &props{}
name := strings.TrimPrefix(ctx.ModuleName(), "prebuilt_")
p.Srcs = []string{path.Join(libDir, name+".so")}
p.System_shared_libs = []string{}
p.No_libcrt = proptools.BoolPtr(true)
p.Sanitize.Never = proptools.BoolPtr(true)
p.Strip.None = proptools.BoolPtr(true)
disable := false
p.Pack_relocations = &disable
p.Stl = proptools.StringPtr("none")
if proptools.Bool(in.Is_llndk) {
p.Stubs.Versions = []string{"29", "10000"}
p.Stubs.Symbol_file = proptools.StringPtr(getSymbolFilePath(ctx))
p.Llndk.Symbol_file = proptools.StringPtr(getSymbolFilePath(ctx))
}
ctx.AppendProperties(p)
}
func libClangRtPrebuiltLibraryStatic(ctx android.LoadHookContext) {
libDir := getClangResourceDir(ctx)
type props struct {
Srcs []string
System_shared_libs []string
No_libcrt *bool
Stl *string
}
name := strings.TrimPrefix(ctx.ModuleName(), "prebuilt_")
p := &props{}
if strings.HasSuffix(name, ".static") {
p.Srcs = []string{path.Join(libDir, strings.TrimSuffix(name, ".static")+".a")}
} else {
p.Srcs = []string{path.Join(libDir, name+".a")}
}
p.System_shared_libs = []string{}
p.No_libcrt = proptools.BoolPtr(true)
p.Stl = proptools.StringPtr("none")
ctx.AppendProperties(p)
}
func llvmDarwinFileGroup(ctx android.LoadHookContext) {
clangDir := getClangPrebuiltDir(ctx)
libName := strings.TrimSuffix(ctx.ModuleName(), "_darwin")
if libName == "libc++" || libName == "libc++abi" {
libName += ".1"
} else if libName == "libxml2" {
libName += ".2.9.10"
}
lib := path.Join(clangDir, "lib64", libName+".dylib")
type props struct {
Srcs []string
}
libPath := android.ExistentPathForSource(ctx, ctx.ModuleDir(), lib)
if libPath.Valid() {
p := &props{}
p.Srcs = []string{lib}
ctx.AppendProperties(p)
}
}
func llvmPrebuiltLibraryStaticFactory() android.Module {
module, _ := cc.NewPrebuiltStaticLibrary(android.HostAndDeviceSupported)
android.AddLoadHook(module, llvmPrebuiltLibraryStatic)
return module.Init()
}
func llvmHostPrebuiltLibrarySharedFactory() android.Module {
module, _ := cc.NewPrebuiltSharedLibrary(android.HostSupported)
android.AddLoadHook(module, llvmHostPrebuiltLibraryShared)
return module.Init()
}
func libClangRtPrebuiltLibrarySharedFactory() android.Module {
module, _ := cc.NewPrebuiltSharedLibrary(android.HostAndDeviceSupported)
props := &prebuiltLibrarySharedProps{}
module.AddProperties(props)
android.AddLoadHook(module, func(ctx android.LoadHookContext) {
libClangRtPrebuiltLibraryShared(ctx, props)
})
return module.Init()
}
func libClangRtPrebuiltLibraryStaticFactory() android.Module {
module, _ := cc.NewPrebuiltStaticLibrary(android.HostAndDeviceSupported)
android.AddLoadHook(module, libClangRtPrebuiltLibraryStatic)
return module.Init()
}
func llvmDarwinFileGroupFactory() android.Module {
module := android.FileGroupFactory()
android.AddLoadHook(module, llvmDarwinFileGroup)
return module
}
func llvmHostDefaults(ctx android.LoadHookContext) {
type props struct {
Enabled *bool
}
p := &props{}
if !ctx.AConfig().IsEnvTrue("LLVM_BUILD_HOST_TOOLS") {
p.Enabled = proptools.BoolPtr(false)
}
ctx.AppendProperties(p)
}
func llvmHostDefaultsFactory() android.Module {
module := cc.DefaultsFactory()
android.AddLoadHook(module, llvmHostDefaults)
return module
}
func clangBuiltinHeaders(ctx android.LoadHookContext) {
type props struct {
Cmd *string
Srcs []string
}
p := &props{}
builtinHeadersDir := path.Join(
getClangPrebuiltDir(ctx), "lib64", "clang",
ctx.AConfig().GetenvWithDefault("LLVM_RELEASE_VERSION",
config.ClangDefaultShortVersion), "include")
s := "$(location) " + path.Join(ctx.ModuleDir(), builtinHeadersDir) + " $(in) >$(out)"
p.Cmd = &s
p.Srcs = []string{path.Join(builtinHeadersDir, "**", "*.h")}
ctx.AppendProperties(p)
}
func clangBuiltinHeadersFactory() android.Module {
module := genrule.GenRuleFactory()
android.AddLoadHook(module, clangBuiltinHeaders)
return module
}