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// Copyright 2016 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 cc
import (
"fmt"
"sort"
"strings"
"sync"
"android/soong/android"
"android/soong/cc/config"
)
var (
modulesAddedWallKey = android.NewOnceKey("ModulesAddedWall")
modulesUsingWnoErrorKey = android.NewOnceKey("ModulesUsingWnoError")
modulesMissingProfileFileKey = android.NewOnceKey("ModulesMissingProfileFile")
)
func init() {
android.RegisterMakeVarsProvider(pctx, makeVarsProvider)
}
func getNamedMapForConfig(config android.Config, key android.OnceKey) *sync.Map {
return config.Once(key, func() interface{} {
return &sync.Map{}
}).(*sync.Map)
}
func makeStringOfKeys(ctx android.MakeVarsContext, key android.OnceKey) string {
set := getNamedMapForConfig(ctx.Config(), key)
keys := []string{}
set.Range(func(key interface{}, value interface{}) bool {
keys = append(keys, key.(string))
return true
})
sort.Strings(keys)
return strings.Join(keys, " ")
}
func makeStringOfWarningAllowedProjects() string {
allProjects := append([]string{}, config.WarningAllowedProjects...)
allProjects = append(allProjects, config.WarningAllowedOldProjects...)
sort.Strings(allProjects)
// Makefile rules use pattern "path/%" to match module paths.
if len(allProjects) > 0 {
return strings.Join(allProjects, "% ") + "%"
} else {
return ""
}
}
type notOnHostContext struct {
}
func (c *notOnHostContext) Host() bool {
return false
}
func makeVarsProvider(ctx android.MakeVarsContext) {
ctx.Strict("LLVM_RELEASE_VERSION", "${config.ClangShortVersion}")
ctx.Strict("LLVM_PREBUILTS_VERSION", "${config.ClangVersion}")
ctx.Strict("LLVM_PREBUILTS_BASE", "${config.ClangBase}")
ctx.Strict("LLVM_PREBUILTS_PATH", "${config.ClangBin}")
ctx.Strict("CLANG", "${config.ClangBin}/clang")
ctx.Strict("CLANG_CXX", "${config.ClangBin}/clang++")
ctx.Strict("LLVM_AS", "${config.ClangBin}/llvm-as")
ctx.Strict("LLVM_LINK", "${config.ClangBin}/llvm-link")
ctx.Strict("LLVM_OBJCOPY", "${config.ClangBin}/llvm-objcopy")
ctx.Strict("LLVM_STRIP", "${config.ClangBin}/llvm-strip")
ctx.Strict("PATH_TO_CLANG_TIDY", "${config.ClangBin}/clang-tidy")
ctx.StrictSorted("CLANG_CONFIG_UNKNOWN_CFLAGS", strings.Join(config.ClangUnknownCflags, " "))
ctx.Strict("RS_LLVM_PREBUILTS_VERSION", "${config.RSClangVersion}")
ctx.Strict("RS_LLVM_PREBUILTS_BASE", "${config.RSClangBase}")
ctx.Strict("RS_LLVM_PREBUILTS_PATH", "${config.RSLLVMPrebuiltsPath}")
ctx.Strict("RS_LLVM_INCLUDES", "${config.RSIncludePath}")
ctx.Strict("RS_CLANG", "${config.RSLLVMPrebuiltsPath}/clang")
ctx.Strict("RS_LLVM_AS", "${config.RSLLVMPrebuiltsPath}/llvm-as")
ctx.Strict("RS_LLVM_LINK", "${config.RSLLVMPrebuiltsPath}/llvm-link")
ctx.Strict("CLANG_EXTERNAL_CFLAGS", "${config.ExternalCflags}")
ctx.Strict("GLOBAL_CLANG_CFLAGS_NO_OVERRIDE", "${config.NoOverrideGlobalCflags}")
ctx.Strict("GLOBAL_CLANG_CPPFLAGS_NO_OVERRIDE", "")
ctx.Strict("GLOBAL_CLANG_EXTERNAL_CFLAGS_NO_OVERRIDE", "${config.NoOverrideExternalGlobalCflags}")
ctx.Strict("BOARD_VNDK_VERSION", ctx.DeviceConfig().VndkVersion())
ctx.Strict("RECOVERY_SNAPSHOT_VERSION", ctx.DeviceConfig().RecoverySnapshotVersion())
// Filter vendor_public_library that are exported to make
exportedVendorPublicLibraries := []string{}
ctx.VisitAllModules(func(module android.Module) {
if ccModule, ok := module.(*Module); ok {
baseName := ccModule.BaseModuleName()
if ccModule.IsVendorPublicLibrary() && module.ExportedToMake() {
if !inList(baseName, exportedVendorPublicLibraries) {
exportedVendorPublicLibraries = append(exportedVendorPublicLibraries, baseName)
}
}
}
})
sort.Strings(exportedVendorPublicLibraries)
ctx.Strict("VENDOR_PUBLIC_LIBRARIES", strings.Join(exportedVendorPublicLibraries, " "))
sort.Strings(lsdumpPaths)
ctx.Strict("LSDUMP_PATHS", strings.Join(lsdumpPaths, " "))
ctx.Strict("ANDROID_WARNING_ALLOWED_PROJECTS", makeStringOfWarningAllowedProjects())
ctx.Strict("SOONG_MODULES_ADDED_WALL", makeStringOfKeys(ctx, modulesAddedWallKey))
ctx.Strict("SOONG_MODULES_USING_WNO_ERROR", makeStringOfKeys(ctx, modulesUsingWnoErrorKey))
ctx.Strict("SOONG_MODULES_MISSING_PGO_PROFILE_FILE", makeStringOfKeys(ctx, modulesMissingProfileFileKey))
ctx.Strict("ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS", strings.Join(asanCflags, " "))
ctx.Strict("ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS", strings.Join(asanLdflags, " "))
ctx.Strict("HWADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS", strings.Join(hwasanCflags, " "))
ctx.Strict("HWADDRESS_SANITIZER_GLOBAL_OPTIONS", strings.Join(hwasanGlobalOptions, ","))
ctx.Strict("CFI_EXTRA_CFLAGS", strings.Join(cfiCflags, " "))
ctx.Strict("CFI_EXTRA_ASFLAGS", strings.Join(cfiAsflags, " "))
ctx.Strict("CFI_EXTRA_LDFLAGS", strings.Join(cfiLdflags, " "))
ctx.Strict("INTEGER_OVERFLOW_EXTRA_CFLAGS", strings.Join(intOverflowCflags, " "))
ctx.Strict("DEFAULT_C_STD_VERSION", config.CStdVersion)
ctx.Strict("DEFAULT_CPP_STD_VERSION", config.CppStdVersion)
ctx.Strict("EXPERIMENTAL_C_STD_VERSION", config.ExperimentalCStdVersion)
ctx.Strict("EXPERIMENTAL_CPP_STD_VERSION", config.ExperimentalCppStdVersion)
ctx.Strict("DEFAULT_GLOBAL_TIDY_CHECKS", "${config.TidyDefaultGlobalChecks}")
ctx.Strict("DEFAULT_LOCAL_TIDY_CHECKS", joinLocalTidyChecks(config.DefaultLocalTidyChecks))
ctx.Strict("DEFAULT_TIDY_HEADER_DIRS", "${config.TidyDefaultHeaderDirs}")
ctx.Strict("WITH_TIDY_FLAGS", "${config.TidyWithTidyFlags}")
ctx.Strict("AIDL_CPP", "${aidlCmd}")
ctx.Strict("ALLOWED_MANUAL_INTERFACE_PATHS", strings.Join(allowedManualInterfacePaths, " "))
ctx.Strict("RS_GLOBAL_INCLUDES", "${config.RsGlobalIncludes}")
ctx.Strict("SOONG_STRIP_PATH", "${stripPath}")
ctx.Strict("XZ", "${xzCmd}")
ctx.Strict("CREATE_MINIDEBUGINFO", "${createMiniDebugInfo}")
includeFlags, err := ctx.Eval("${config.CommonGlobalIncludes}")
if err != nil {
panic(err)
}
includes, systemIncludes := splitSystemIncludes(ctx, includeFlags)
ctx.StrictRaw("SRC_HEADERS", strings.Join(includes, " "))
ctx.StrictRaw("SRC_SYSTEM_HEADERS", strings.Join(systemIncludes, " "))
ndkKnownLibs := *getNDKKnownLibs(ctx.Config())
sort.Strings(ndkKnownLibs)
ctx.Strict("NDK_KNOWN_LIBS", strings.Join(ndkKnownLibs, " "))
hostTargets := ctx.Config().Targets[ctx.Config().BuildOS]
makeVarsToolchain(ctx, "", hostTargets[0])
if len(hostTargets) > 1 {
makeVarsToolchain(ctx, "2ND_", hostTargets[1])
}
deviceTargets := ctx.Config().Targets[android.Android]
makeVarsToolchain(ctx, "", deviceTargets[0])
if len(deviceTargets) > 1 {
makeVarsToolchain(ctx, "2ND_", deviceTargets[1])
}
}
func makeVarsToolchain(ctx android.MakeVarsContext, secondPrefix string,
target android.Target) {
var typePrefix string
switch target.Os.Class {
case android.Host:
typePrefix = "HOST_"
case android.Device:
typePrefix = "TARGET_"
}
makePrefix := secondPrefix + typePrefix
toolchain := config.FindToolchain(target.Os, target.Arch)
var productExtraCflags string
var productExtraLdflags string
hod := "Host"
if target.Os.Class == android.Device {
hod = "Device"
}
if target.Os.Class == android.Host && ctx.Config().HostStaticBinaries() {
productExtraLdflags += "-static"
}
includeFlags, err := ctx.Eval(toolchain.IncludeFlags())
if err != nil {
panic(err)
}
includes, systemIncludes := splitSystemIncludes(ctx, includeFlags)
ctx.StrictRaw(makePrefix+"C_INCLUDES", strings.Join(includes, " "))
ctx.StrictRaw(makePrefix+"C_SYSTEM_INCLUDES", strings.Join(systemIncludes, " "))
if target.Arch.ArchType == android.Arm {
flags, err := toolchain.InstructionSetFlags("arm")
if err != nil {
panic(err)
}
ctx.Strict(makePrefix+"arm_CFLAGS", flags)
flags, err = toolchain.InstructionSetFlags("thumb")
if err != nil {
panic(err)
}
ctx.Strict(makePrefix+"thumb_CFLAGS", flags)
}
clangPrefix := secondPrefix + "CLANG_" + typePrefix
ctx.Strict(clangPrefix+"TRIPLE", toolchain.ClangTriple())
ctx.Strict(clangPrefix+"GLOBAL_CFLAGS", strings.Join([]string{
toolchain.Cflags(),
"${config.CommonGlobalCflags}",
fmt.Sprintf("${config.%sGlobalCflags}", hod),
toolchain.ToolchainCflags(),
productExtraCflags,
}, " "))
ctx.Strict(clangPrefix+"GLOBAL_CPPFLAGS", strings.Join([]string{
"${config.CommonGlobalCppflags}",
fmt.Sprintf("${config.%sGlobalCppflags}", hod),
toolchain.Cppflags(),
}, " "))
ctx.Strict(clangPrefix+"GLOBAL_LDFLAGS", strings.Join([]string{
fmt.Sprintf("${config.%sGlobalLdflags}", hod),
toolchain.Ldflags(),
toolchain.ToolchainLdflags(),
productExtraLdflags,
}, " "))
ctx.Strict(clangPrefix+"GLOBAL_LLDFLAGS", strings.Join([]string{
fmt.Sprintf("${config.%sGlobalLldflags}", hod),
toolchain.Lldflags(),
toolchain.ToolchainLdflags(),
productExtraLdflags,
}, " "))
if target.Os.Class == android.Device {
sanitizerVariables := map[string]string{
"ADDRESS_SANITIZER_RUNTIME_LIBRARY": config.AddressSanitizerRuntimeLibrary(toolchain),
"HWADDRESS_SANITIZER_RUNTIME_LIBRARY": config.HWAddressSanitizerRuntimeLibrary(toolchain),
"HWADDRESS_SANITIZER_STATIC_LIBRARY": config.HWAddressSanitizerStaticLibrary(toolchain),
"UBSAN_RUNTIME_LIBRARY": config.UndefinedBehaviorSanitizerRuntimeLibrary(toolchain),
"UBSAN_MINIMAL_RUNTIME_LIBRARY": config.UndefinedBehaviorSanitizerMinimalRuntimeLibrary(toolchain),
"TSAN_RUNTIME_LIBRARY": config.ThreadSanitizerRuntimeLibrary(toolchain),
"SCUDO_RUNTIME_LIBRARY": config.ScudoRuntimeLibrary(toolchain),
"SCUDO_MINIMAL_RUNTIME_LIBRARY": config.ScudoMinimalRuntimeLibrary(toolchain),
}
for variable, value := range sanitizerVariables {
ctx.Strict(secondPrefix+variable, value)
}
sanitizerLibs := android.SortedStringValues(sanitizerVariables)
var sanitizerLibStems []string
ctx.VisitAllModules(func(m android.Module) {
if !m.Enabled() {
return
}
ccModule, _ := m.(*Module)
if ccModule == nil || ccModule.library == nil || !ccModule.library.shared() {
return
}
if android.InList(strings.TrimPrefix(ctx.ModuleName(m), "prebuilt_"), sanitizerLibs) &&
m.Target().Os == target.Os && m.Target().Arch.ArchType == target.Arch.ArchType {
outputFile := ccModule.outputFile
if outputFile.Valid() {
sanitizerLibStems = append(sanitizerLibStems, outputFile.Path().Base())
}
}
})
sanitizerLibStems = android.SortedUniqueStrings(sanitizerLibStems)
ctx.Strict(secondPrefix+"SANITIZER_STEMS", strings.Join(sanitizerLibStems, " "))
}
// This is used by external/gentoo/...
ctx.Strict("CLANG_CONFIG_"+target.Arch.ArchType.Name+"_"+typePrefix+"TRIPLE",
toolchain.ClangTriple())
if target.Os == android.Darwin {
ctx.Strict(makePrefix+"AR", "${config.MacArPath}")
ctx.Strict(makePrefix+"NM", "${config.MacToolPath}/nm")
ctx.Strict(makePrefix+"OTOOL", "${config.MacToolPath}/otool")
ctx.Strict(makePrefix+"STRIP", "${config.MacStripPath}")
} else {
ctx.Strict(makePrefix+"AR", "${config.ClangBin}/llvm-ar")
ctx.Strict(makePrefix+"READELF", "${config.ClangBin}/llvm-readelf")
ctx.Strict(makePrefix+"NM", "${config.ClangBin}/llvm-nm")
ctx.Strict(makePrefix+"STRIP", "${config.ClangBin}/llvm-strip")
}
if target.Os.Class == android.Device {
ctx.Strict(makePrefix+"OBJCOPY", "${config.ClangBin}/llvm-objcopy")
ctx.Strict(makePrefix+"LD", "${config.ClangBin}/lld")
ctx.Strict(makePrefix+"NDK_TRIPLE", config.NDKTriple(toolchain))
ctx.Strict(makePrefix+"TOOLS_PREFIX", "${config.ClangBin}/llvm-")
// TODO: GCC version is obsolete now that GCC has been removed.
ctx.Strict(makePrefix+"GCC_VERSION", toolchain.GccVersion())
}
if target.Os.Class == android.Host {
ctx.Strict(makePrefix+"AVAILABLE_LIBRARIES", strings.Join(toolchain.AvailableLibraries(), " "))
}
ctx.Strict(makePrefix+"SHLIB_SUFFIX", toolchain.ShlibSuffix())
ctx.Strict(makePrefix+"EXECUTABLE_SUFFIX", toolchain.ExecutableSuffix())
}
func splitSystemIncludes(ctx android.MakeVarsContext, val string) (includes, systemIncludes []string) {
flags, err := ctx.Eval(val)
if err != nil {
panic(err)
}
extract := func(flags string, dirs []string, prefix string) (string, []string, bool) {
if strings.HasPrefix(flags, prefix) {
flags = strings.TrimPrefix(flags, prefix)
flags = strings.TrimLeft(flags, " ")
s := strings.SplitN(flags, " ", 2)
dirs = append(dirs, s[0])
if len(s) > 1 {
return strings.TrimLeft(s[1], " "), dirs, true
}
return "", dirs, true
} else {
return flags, dirs, false
}
}
flags = strings.TrimLeft(flags, " ")
for flags != "" {
found := false
flags, includes, found = extract(flags, includes, "-I")
if !found {
flags, systemIncludes, found = extract(flags, systemIncludes, "-isystem ")
}
if !found {
panic(fmt.Errorf("Unexpected flag in %q", flags))
}
}
return includes, systemIncludes
}
func joinLocalTidyChecks(checks []config.PathBasedTidyCheck) string {
rets := make([]string, len(checks))
for i, check := range config.DefaultLocalTidyChecks {
rets[i] = check.PathPrefix + ":" + check.Checks
}
return strings.Join(rets, " ")
}