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// Copyright 2015 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 (
"path/filepath"
"strings"
"github.com/google/blueprint"
"android/soong/android"
)
func init() {
pctx.SourcePathVariable("lexCmd", "prebuilts/build-tools/${config.HostPrebuiltTag}/bin/flex")
pctx.SourcePathVariable("m4Cmd", "prebuilts/build-tools/${config.HostPrebuiltTag}/bin/m4")
pctx.HostBinToolVariable("aidlCmd", "aidl-cpp")
pctx.HostBinToolVariable("syspropCmd", "sysprop_cpp")
}
var (
lex = pctx.AndroidStaticRule("lex",
blueprint.RuleParams{
Command: "M4=$m4Cmd $lexCmd -o$out $in",
CommandDeps: []string{"$lexCmd", "$m4Cmd"},
})
sysprop = pctx.AndroidStaticRule("sysprop",
blueprint.RuleParams{
Command: "$syspropCmd --header-dir=$headerOutDir --public-header-dir=$publicOutDir " +
"--source-dir=$srcOutDir --include-name=$includeName $in",
CommandDeps: []string{"$syspropCmd"},
},
"headerOutDir", "publicOutDir", "srcOutDir", "includeName")
windmc = pctx.AndroidStaticRule("windmc",
blueprint.RuleParams{
Command: "$windmcCmd -r$$(dirname $out) -h$$(dirname $out) $in",
CommandDeps: []string{"$windmcCmd"},
},
"windmcCmd")
)
type YaccProperties struct {
// list of module-specific flags that will be used for .y and .yy compiles
Flags []string
// whether the yacc files will produce a location.hh file
Gen_location_hh *bool
// whether the yacc files will product a position.hh file
Gen_position_hh *bool
}
func genYacc(ctx android.ModuleContext, rule *android.RuleBuilder, yaccFile android.Path,
outFile android.ModuleGenPath, props *YaccProperties) (headerFiles android.Paths) {
outDir := android.PathForModuleGen(ctx, "yacc")
headerFile := android.GenPathWithExt(ctx, "yacc", yaccFile, "h")
ret := android.Paths{headerFile}
cmd := rule.Command()
// Fix up #line markers to not use the sbox temporary directory
sedCmd := "sed -i.bak 's#__SBOX_OUT_DIR__#" + outDir.String() + "#'"
rule.Command().Text(sedCmd).Input(outFile)
rule.Command().Text(sedCmd).Input(headerFile)
var flags []string
if props != nil {
flags = props.Flags
if Bool(props.Gen_location_hh) {
locationHeader := outFile.InSameDir(ctx, "location.hh")
ret = append(ret, locationHeader)
cmd.ImplicitOutput(locationHeader)
rule.Command().Text(sedCmd).Input(locationHeader)
}
if Bool(props.Gen_position_hh) {
positionHeader := outFile.InSameDir(ctx, "position.hh")
ret = append(ret, positionHeader)
cmd.ImplicitOutput(positionHeader)
rule.Command().Text(sedCmd).Input(positionHeader)
}
}
cmd.Text("BISON_PKGDATADIR=prebuilts/build-tools/common/bison").
FlagWithInput("M4=", ctx.Config().PrebuiltBuildTool(ctx, "m4")).
PrebuiltBuildTool(ctx, "bison").
Flag("-d").
Flags(flags).
FlagWithOutput("--defines=", headerFile).
Flag("-o").Output(outFile).Input(yaccFile)
return ret
}
func genAidl(ctx android.ModuleContext, rule *android.RuleBuilder, aidlFile android.Path,
outFile, depFile android.ModuleGenPath, aidlFlags string) android.Paths {
aidlPackage := strings.TrimSuffix(aidlFile.Rel(), aidlFile.Base())
baseName := strings.TrimSuffix(aidlFile.Base(), aidlFile.Ext())
shortName := baseName
// TODO(b/111362593): aidl_to_cpp_common.cpp uses heuristics to figure out if
// an interface name has a leading I. Those same heuristics have been
// moved here.
if len(baseName) >= 2 && baseName[0] == 'I' &&
strings.ToUpper(baseName)[1] == baseName[1] {
shortName = strings.TrimPrefix(baseName, "I")
}
outDir := android.PathForModuleGen(ctx, "aidl")
headerI := outDir.Join(ctx, aidlPackage, baseName+".h")
headerBn := outDir.Join(ctx, aidlPackage, "Bn"+shortName+".h")
headerBp := outDir.Join(ctx, aidlPackage, "Bp"+shortName+".h")
baseDir := strings.TrimSuffix(aidlFile.String(), aidlFile.Rel())
if baseDir != "" {
aidlFlags += " -I" + baseDir
}
cmd := rule.Command()
cmd.BuiltTool(ctx, "aidl-cpp").
FlagWithDepFile("-d", depFile).
Flag("--ninja").
Flag(aidlFlags).
Input(aidlFile).
OutputDir().
Output(outFile).
ImplicitOutputs(android.WritablePaths{
headerI,
headerBn,
headerBp,
})
return android.Paths{
headerI,
headerBn,
headerBp,
}
}
func genLex(ctx android.ModuleContext, lexFile android.Path, outFile android.ModuleGenPath) {
ctx.Build(pctx, android.BuildParams{
Rule: lex,
Description: "lex " + lexFile.Rel(),
Output: outFile,
Input: lexFile,
})
}
func genSysprop(ctx android.ModuleContext, syspropFile android.Path) (android.Path, android.Paths) {
headerFile := android.PathForModuleGen(ctx, "sysprop", "include", syspropFile.Rel()+".h")
publicHeaderFile := android.PathForModuleGen(ctx, "sysprop/public", "include", syspropFile.Rel()+".h")
cppFile := android.PathForModuleGen(ctx, "sysprop", syspropFile.Rel()+".cpp")
headers := android.WritablePaths{headerFile, publicHeaderFile}
ctx.Build(pctx, android.BuildParams{
Rule: sysprop,
Description: "sysprop " + syspropFile.Rel(),
Output: cppFile,
ImplicitOutputs: headers,
Input: syspropFile,
Args: map[string]string{
"headerOutDir": filepath.Dir(headerFile.String()),
"publicOutDir": filepath.Dir(publicHeaderFile.String()),
"srcOutDir": filepath.Dir(cppFile.String()),
"includeName": syspropFile.Rel() + ".h",
},
})
return cppFile, headers.Paths()
}
func genWinMsg(ctx android.ModuleContext, srcFile android.Path, flags builderFlags) (android.Path, android.Path) {
headerFile := android.GenPathWithExt(ctx, "windmc", srcFile, "h")
rcFile := android.GenPathWithExt(ctx, "windmc", srcFile, "rc")
windmcCmd := gccCmd(flags.toolchain, "windmc")
ctx.Build(pctx, android.BuildParams{
Rule: windmc,
Description: "windmc " + srcFile.Rel(),
Output: rcFile,
ImplicitOutput: headerFile,
Input: srcFile,
Args: map[string]string{
"windmcCmd": windmcCmd,
},
})
return rcFile, headerFile
}
func genSources(ctx android.ModuleContext, srcFiles android.Paths,
buildFlags builderFlags) (android.Paths, android.Paths) {
var deps android.Paths
var rsFiles android.Paths
var aidlRule *android.RuleBuilder
var yaccRule_ *android.RuleBuilder
yaccRule := func() *android.RuleBuilder {
if yaccRule_ == nil {
yaccRule_ = android.NewRuleBuilder().Sbox(android.PathForModuleGen(ctx, "yacc"))
}
return yaccRule_
}
for i, srcFile := range srcFiles {
switch srcFile.Ext() {
case ".y":
cFile := android.GenPathWithExt(ctx, "yacc", srcFile, "c")
srcFiles[i] = cFile
deps = append(deps, genYacc(ctx, yaccRule(), srcFile, cFile, buildFlags.yacc)...)
case ".yy":
cppFile := android.GenPathWithExt(ctx, "yacc", srcFile, "cpp")
srcFiles[i] = cppFile
deps = append(deps, genYacc(ctx, yaccRule(), srcFile, cppFile, buildFlags.yacc)...)
case ".l":
cFile := android.GenPathWithExt(ctx, "lex", srcFile, "c")
srcFiles[i] = cFile
genLex(ctx, srcFile, cFile)
case ".ll":
cppFile := android.GenPathWithExt(ctx, "lex", srcFile, "cpp")
srcFiles[i] = cppFile
genLex(ctx, srcFile, cppFile)
case ".proto":
ccFile, headerFile := genProto(ctx, srcFile, buildFlags)
srcFiles[i] = ccFile
deps = append(deps, headerFile)
case ".aidl":
if aidlRule == nil {
aidlRule = android.NewRuleBuilder().Sbox(android.PathForModuleGen(ctx, "aidl"))
}
cppFile := android.GenPathWithExt(ctx, "aidl", srcFile, "cpp")
depFile := android.GenPathWithExt(ctx, "aidl", srcFile, "cpp.d")
srcFiles[i] = cppFile
deps = append(deps, genAidl(ctx, aidlRule, srcFile, cppFile, depFile, buildFlags.aidlFlags)...)
case ".rscript", ".fs":
cppFile := rsGeneratedCppFile(ctx, srcFile)
rsFiles = append(rsFiles, srcFiles[i])
srcFiles[i] = cppFile
case ".mc":
rcFile, headerFile := genWinMsg(ctx, srcFile, buildFlags)
srcFiles[i] = rcFile
deps = append(deps, headerFile)
case ".sysprop":
cppFile, headerFiles := genSysprop(ctx, srcFile)
srcFiles[i] = cppFile
deps = append(deps, headerFiles...)
}
}
if aidlRule != nil {
aidlRule.Build(pctx, ctx, "aidl", "gen aidl")
}
if yaccRule_ != nil {
yaccRule_.Build(pctx, ctx, "yacc", "gen yacc")
}
if len(rsFiles) > 0 {
deps = append(deps, rsGenerateCpp(ctx, rsFiles, buildFlags.rsFlags)...)
}
return srcFiles, deps
}
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