ef75beb068
This is needed so primary builder actions can directly depend on their glob result files. Bug: 318434287 Test: rm -rf out && m nothing && m nothing Change-Id: I5c67ee53c9f18f81c79c0fe13b3338eacaccdbc0
116 lines
3.3 KiB
Go
116 lines
3.3 KiB
Go
// Copyright 2014 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 bootstrap
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import (
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"fmt"
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"os"
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"path/filepath"
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"runtime"
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"strings"
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"github.com/google/blueprint"
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)
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func bootstrapVariable(name string, value func(BootstrapConfig) string) blueprint.Variable {
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return pctx.VariableFunc(name, func(ctx blueprint.VariableFuncContext, config interface{}) (string, error) {
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c, ok := config.(BootstrapConfig)
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if !ok {
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panic(fmt.Sprintf("Bootstrap rules were passed a configuration that does not include theirs, config=%q",
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config))
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}
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return value(c), nil
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})
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}
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var (
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// These variables are the only configuration needed by the bootstrap
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// modules.
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srcDirVariable = bootstrapVariable("srcDir", func(c BootstrapConfig) string {
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return "."
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})
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soongOutDirVariable = bootstrapVariable("soongOutDir", func(c BootstrapConfig) string {
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return c.SoongOutDir()
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})
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outDirVariable = bootstrapVariable("outDir", func(c BootstrapConfig) string {
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return c.OutDir()
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})
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goRootVariable = bootstrapVariable("goRoot", func(c BootstrapConfig) string {
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goroot := runtime.GOROOT()
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// Prefer to omit absolute paths from the ninja file
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if cwd, err := os.Getwd(); err == nil {
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if relpath, err := filepath.Rel(cwd, goroot); err == nil {
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if !strings.HasPrefix(relpath, "../") {
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goroot = relpath
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}
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}
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}
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return goroot
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})
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compileCmdVariable = bootstrapVariable("compileCmd", func(c BootstrapConfig) string {
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return "$goRoot/pkg/tool/" + runtime.GOOS + "_" + runtime.GOARCH + "/compile"
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})
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linkCmdVariable = bootstrapVariable("linkCmd", func(c BootstrapConfig) string {
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return "$goRoot/pkg/tool/" + runtime.GOOS + "_" + runtime.GOARCH + "/link"
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})
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debugFlagsVariable = bootstrapVariable("debugFlags", func(c BootstrapConfig) string {
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if c.DebugCompilation() {
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// -N: disable optimizations, -l: disable inlining
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return "-N -l"
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} else {
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return ""
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}
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})
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)
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type BootstrapConfig interface {
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// The directory where tools run during the build are located.
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HostToolDir() string
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// The directory where files emitted during bootstrapping are located.
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// Usually OutDir() + "/soong".
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SoongOutDir() string
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// The output directory for the build.
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OutDir() string
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// Whether to compile Go code in such a way that it can be debugged
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DebugCompilation() bool
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// Whether to run tests for Go code
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RunGoTests() bool
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Subninjas() []string
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PrimaryBuilderInvocations() []PrimaryBuilderInvocation
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}
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type StopBefore int
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const (
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DoEverything StopBefore = iota
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StopBeforePrepareBuildActions
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StopBeforeWriteNinja
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)
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type PrimaryBuilderInvocation struct {
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Inputs []string
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Implicits []string
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OrderOnlyInputs []string
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Outputs []string
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Args []string
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Console bool
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Description string
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Env map[string]string
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}
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