Merge "Publish Soong configuration to Make variables"
am: 7f08e21941
* commit '7f08e2194177daafbc9c103a7d3f7df1bd0903d7':
Publish Soong configuration to Make variables
Change-Id: Icf3d49722d8d40349f9bccdccfac121d864cbe56
This commit is contained in:
Dan Willemsen
android-build-merger
@@ -96,6 +96,7 @@ bootstrap_go_package {
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"common/defs.go",
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"common/env.go",
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"common/glob.go",
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"common/makevars.go",
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"common/module.go",
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"common/mutator.go",
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"common/package_ctx.go",
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@@ -124,6 +125,7 @@ bootstrap_go_package {
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"cc/cc.go",
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"cc/clang.go",
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"cc/gen.go",
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"cc/makevars.go",
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"cc/sanitize.go",
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"cc/stl.go",
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"cc/toolchain.go",
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111
cc/makevars.go
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111
cc/makevars.go
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@@ -0,0 +1,111 @@
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// Copyright 2016 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 cc
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import (
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"fmt"
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"path/filepath"
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"strings"
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"android/soong/common"
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)
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func init() {
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common.RegisterMakeVarsProvider(pctx, makeVarsProvider)
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}
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func makeVarsProvider(ctx common.MakeVarsContext) {
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ctx.Strict("LLVM_PREBUILTS_VERSION", "${clangVersion}")
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ctx.Strict("LLVM_PREBUILTS_BASE", "${clangBase}")
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hostType := common.CurrentHostType()
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arches := ctx.Config().HostArches[hostType]
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makeVarsToolchain(ctx, "", common.Host, hostType, arches[0])
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if len(arches) > 1 {
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makeVarsToolchain(ctx, "2ND_", common.Host, hostType, arches[1])
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}
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if winArches, ok := ctx.Config().HostArches[common.Windows]; ok {
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makeVarsToolchain(ctx, "", common.Host, common.Windows, winArches[0])
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if len(winArches) > 1 {
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makeVarsToolchain(ctx, "2ND_", common.Host, common.Windows, winArches[1])
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}
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}
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arches = ctx.Config().DeviceArches
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makeVarsToolchain(ctx, "", common.Device, common.NoHostType, arches[0])
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if len(arches) > 1 {
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makeVarsToolchain(ctx, "2ND_", common.Device, common.NoHostType, arches[1])
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}
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}
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func makeVarsToolchain(ctx common.MakeVarsContext, secondPrefix string,
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hod common.HostOrDevice, ht common.HostType, arch common.Arch) {
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var typePrefix string
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if hod.Host() {
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if ht == common.Windows {
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typePrefix = "HOST_CROSS_"
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} else {
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typePrefix = "HOST_"
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}
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} else {
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typePrefix = "TARGET_"
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}
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makePrefix := secondPrefix + typePrefix
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toolchain := toolchainFactories[hod][ht][arch.ArchType](arch)
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globalCflags := fmt.Sprintf("${commonGlobalCflags} ${%sGlobalCflags}", hod)
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ctx.CheckSorted(makePrefix+"GLOBAL_CFLAGS", strings.Join([]string{
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toolchain.ToolchainCflags(),
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globalCflags,
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toolchain.Cflags(),
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}, " "))
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ctx.CheckSorted(makePrefix+"GLOBAL_LDFLAGS", strings.Join([]string{
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toolchain.ToolchainLdflags(),
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toolchain.Ldflags(),
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}, " "))
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if toolchain.ClangSupported() {
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clangPrefix := secondPrefix + "CLANG_" + typePrefix
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clangExtras := "-target " + toolchain.ClangTriple() + " -B" + filepath.Join(toolchain.GccRoot(), toolchain.GccTriple(), "bin")
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globalClangCflags := fmt.Sprintf("${commonClangGlobalCflags} ${clangExtraCflags} ${%sClangGlobalCflags}", hod)
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ctx.CheckSorted(clangPrefix+"GLOBAL_CFLAGS", strings.Join([]string{
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toolchain.ToolchainClangCflags(),
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globalClangCflags,
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toolchain.ClangCflags(),
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clangExtras,
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}, " "))
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ctx.CheckSorted(clangPrefix+"GLOBAL_LDFLAGS", strings.Join([]string{
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toolchain.ToolchainClangLdflags(),
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toolchain.ClangLdflags(),
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clangExtras,
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}, " "))
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}
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ctx.Strict(makePrefix+"CC", gccCmd(toolchain, "gcc"))
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ctx.Strict(makePrefix+"CXX", gccCmd(toolchain, "g++"))
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if ht == common.Darwin {
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ctx.Strict(makePrefix+"AR", "${macArPath}")
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} else {
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ctx.Strict(makePrefix+"AR", gccCmd(toolchain, "ar"))
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ctx.Strict(makePrefix+"READELF", gccCmd(toolchain, "readelf"))
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ctx.Strict(makePrefix+"NM", gccCmd(toolchain, "nm"))
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}
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}
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242
common/makevars.go
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242
common/makevars.go
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@@ -0,0 +1,242 @@
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// Copyright 2016 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 common
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"os"
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"android/soong"
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"github.com/google/blueprint"
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"github.com/google/blueprint/proptools"
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)
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///////////////////////////////////////////////////////////////////////////////
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// Interface for other packages to use to declare make variables
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type MakeVarsContext interface {
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Config() Config
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// Verify the make variable matches the Soong version, fail the build
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// if it does not. If the make variable is empty, just set it.
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Strict(name, ninjaStr string)
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// Check to see if the make variable matches the Soong version, warn if
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// it does not. If the make variable is empty, just set it.
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Check(name, ninjaStr string)
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// These are equivalent to the above, but sort the make and soong
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// variables before comparing them. They also show the unique entries
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// in each list when displaying the difference, instead of the entire
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// string.
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StrictSorted(name, ninjaStr string)
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CheckSorted(name, ninjaStr string)
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}
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type MakeVarsProvider func(ctx MakeVarsContext)
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func RegisterMakeVarsProvider(pctx blueprint.PackageContext, provider MakeVarsProvider) {
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makeVarsProviders = append(makeVarsProviders, makeVarsProvider{pctx, provider})
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}
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///////////////////////////////////////////////////////////////////////////////
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func init() {
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soong.RegisterSingletonType("makevars", makeVarsSingletonFunc)
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}
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func makeVarsSingletonFunc() blueprint.Singleton {
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return &makeVarsSingleton{}
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}
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type makeVarsSingleton struct{}
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type makeVarsProvider struct {
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pctx blueprint.PackageContext
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call MakeVarsProvider
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}
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var makeVarsProviders []makeVarsProvider
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type makeVarsContext struct {
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config Config
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ctx blueprint.SingletonContext
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pctx blueprint.PackageContext
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vars []makeVarsVariable
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}
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var _ MakeVarsContext = &makeVarsContext{}
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type makeVarsVariable struct {
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name string
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value string
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sort bool
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strict bool
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}
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func (s *makeVarsSingleton) GenerateBuildActions(ctx blueprint.SingletonContext) {
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config := ctx.Config().(Config)
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if !config.EmbeddedInMake() {
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return
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}
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outFile := PathForOutput(ctx, "make_vars"+proptools.String(config.ProductVariables.Make_suffix)+".mk").String()
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if ctx.Failed() {
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return
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}
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vars := []makeVarsVariable{}
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for _, provider := range makeVarsProviders {
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mctx := &makeVarsContext{
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config: config,
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ctx: ctx,
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pctx: provider.pctx,
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}
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provider.call(mctx)
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vars = append(vars, mctx.vars...)
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}
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if ctx.Failed() {
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return
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}
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outBytes := s.writeVars(vars)
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if _, err := os.Stat(outFile); err == nil {
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if data, err := ioutil.ReadFile(outFile); err == nil {
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if bytes.Equal(data, outBytes) {
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return
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}
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}
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}
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if err := ioutil.WriteFile(outFile, outBytes, 0666); err != nil {
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ctx.Errorf(err.Error())
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}
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}
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func (s *makeVarsSingleton) writeVars(vars []makeVarsVariable) []byte {
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buf := &bytes.Buffer{}
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fmt.Fprintln(buf, `# Autogenerated file
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# Compares SOONG_$(1) against $(1), and warns if they are not equal.
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#
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# If the original variable is empty, then just set it to the SOONG_ version.
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#
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# $(1): Name of the variable to check
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# $(2): If not-empty, sort the values before comparing
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# $(3): Extra snippet to run if it does not match
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define soong-compare-var
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ifneq ($$($(1)),)
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my_val_make := $(if $(2),$$(sort $$($(1))),$$($(1)))
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my_val_soong := $(if $(2),$$(sort $$(SOONG_$(1))),$$(SOONG_$(1)))
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ifneq ($$(my_val_make),$$(my_val_soong))
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$$(warning $(1) does not match between Make and Soong:)
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$(if $(2),$$(warning Make adds: $$(filter-out $$(my_val_soong),$$(my_val_make))),$$(warning Make : $$(my_val_make)))
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$(if $(2),$$(warning Soong adds: $$(filter-out $$(my_val_make),$$(my_val_soong))),$$(warning Soong: $$(my_val_soong)))
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$(3)
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endif
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my_val_make :=
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my_val_soong :=
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else
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$(1) := $$(SOONG_$(1))
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endif
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endef
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my_check_failed := false
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`)
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// Write all the strict checks out first so that if one of them errors,
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// we get all of the strict errors printed, but not the non-strict
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// warnings.
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for _, v := range vars {
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if !v.strict {
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continue
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}
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sort := ""
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if v.sort {
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sort = "true"
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}
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fmt.Fprintf(buf, "SOONG_%s := %s\n", v.name, v.value)
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fmt.Fprintf(buf, "$(eval $(call soong-compare-var,%s,%s,my_check_failed := true))\n\n", v.name, sort)
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}
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fmt.Fprintln(buf, `
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ifneq ($(my_check_failed),false)
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$(error Soong variable check failed)
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endif
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my_check_failed :=
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`)
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for _, v := range vars {
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if v.strict {
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continue
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}
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sort := ""
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if v.sort {
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sort = "true"
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}
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fmt.Fprintf(buf, "SOONG_%s := %s\n", v.name, v.value)
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fmt.Fprintf(buf, "$(eval $(call soong-compare-var,%s,%s))\n\n", v.name, sort)
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}
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fmt.Fprintln(buf, "\nsoong-compare-var :=")
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return buf.Bytes()
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}
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func (c *makeVarsContext) Config() Config {
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return c.config
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}
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func (c *makeVarsContext) addVariable(name, ninjaStr string, strict, sort bool) {
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value, err := c.ctx.Eval(c.pctx, ninjaStr)
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if err != nil {
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c.ctx.Errorf(err.Error())
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}
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c.vars = append(c.vars, makeVarsVariable{
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name: name,
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value: value,
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strict: strict,
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sort: sort,
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})
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}
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func (c *makeVarsContext) Strict(name, ninjaStr string) {
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c.addVariable(name, ninjaStr, true, false)
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}
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func (c *makeVarsContext) StrictSorted(name, ninjaStr string) {
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c.addVariable(name, ninjaStr, true, true)
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}
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func (c *makeVarsContext) Check(name, ninjaStr string) {
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c.addVariable(name, ninjaStr, false, false)
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}
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func (c *makeVarsContext) CheckSorted(name, ninjaStr string) {
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c.addVariable(name, ninjaStr, false, true)
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}
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