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// Copyright 2017 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 (
"android/soong/android"
"path/filepath"
"runtime"
"strings"
"github.com/google/blueprint"
)
func init() {
pctx.VariableFunc("rsCmd", func(ctx android.PackageVarContext) string {
if ctx.Config().AlwaysUsePrebuiltSdks() {
// Use RenderScript prebuilts for unbundled builds
return filepath.Join("prebuilts/sdk/tools", runtime.GOOS, "bin/llvm-rs-cc")
} else {
return ctx.Config().HostToolPath(ctx, "llvm-rs-cc").String()
}
})
}
var rsCppCmdLine = strings.Replace(`
${rsCmd} -o ${outDir} -d ${outDir} -a ${out} -MD -reflect-c++ ${rsFlags} $in &&
(echo '${out}: \' && cat ${depFiles} | awk 'start { sub(/( \\)?$$/, " \\"); print } /:/ { start=1 }') > ${out}.d &&
touch $out
`, "\n", "", -1)
var (
rsCpp = pctx.AndroidStaticRule("rsCpp",
blueprint.RuleParams{
Command: rsCppCmdLine,
CommandDeps: []string{"$rsCmd"},
Depfile: "${out}.d",
Deps: blueprint.DepsGCC,
},
"depFiles", "outDir", "rsFlags", "stampFile")
)
// Takes a path to a .rscript or .fs file, and returns a path to a generated ScriptC_*.cpp file
// This has to match the logic in llvm-rs-cc in DetermineOutputFile.
func rsGeneratedCppFile(ctx android.ModuleContext, rsFile android.Path) android.WritablePath {
fileName := strings.TrimSuffix(rsFile.Base(), rsFile.Ext())
return android.PathForModuleGen(ctx, "rs", "ScriptC_"+fileName+".cpp")
}
func rsGeneratedHFile(ctx android.ModuleContext, rsFile android.Path) android.WritablePath {
fileName := strings.TrimSuffix(rsFile.Base(), rsFile.Ext())
return android.PathForModuleGen(ctx, "rs", "ScriptC_"+fileName+".h")
}
func rsGeneratedDepFile(ctx android.ModuleContext, rsFile android.Path) android.WritablePath {
fileName := strings.TrimSuffix(rsFile.Base(), rsFile.Ext())
return android.PathForModuleGen(ctx, "rs", fileName+".d")
}
func rsGenerateCpp(ctx android.ModuleContext, rsFiles android.Paths, rsFlags string) android.Paths {
stampFile := android.PathForModuleGen(ctx, "rs", "rs.stamp")
depFiles := make(android.WritablePaths, 0, len(rsFiles))
genFiles := make(android.WritablePaths, 0, 2*len(rsFiles))
headers := make(android.Paths, 0, len(rsFiles))
for _, rsFile := range rsFiles {
depFiles = append(depFiles, rsGeneratedDepFile(ctx, rsFile))
headerFile := rsGeneratedHFile(ctx, rsFile)
genFiles = append(genFiles, rsGeneratedCppFile(ctx, rsFile), headerFile)
headers = append(headers, headerFile)
}
ctx.Build(pctx, android.BuildParams{
Rule: rsCpp,
Description: "llvm-rs-cc",
Output: stampFile,
ImplicitOutputs: genFiles,
Inputs: rsFiles,
Args: map[string]string{
"rsFlags": rsFlags,
"outDir": android.PathForModuleGen(ctx, "rs").String(),
"depFiles": strings.Join(depFiles.Strings(), " "),
},
})
return headers
}
func rsFlags(ctx ModuleContext, flags Flags, properties *BaseCompilerProperties) Flags {
targetApi := String(properties.Renderscript.Target_api)
if targetApi == "" && ctx.useSdk() {
switch ctx.sdkVersion() {
case "current", "system_current", "test_current":
// Nothing
default:
targetApi = android.GetNumericSdkVersion(ctx.sdkVersion())
}
}
if targetApi != "" {
flags.rsFlags = append(flags.rsFlags, "-target-api "+targetApi)
}
flags.rsFlags = append(flags.rsFlags, "-Wall", "-Werror")
flags.rsFlags = append(flags.rsFlags, properties.Renderscript.Flags...)
if ctx.Arch().ArchType.Multilib == "lib64" {
flags.rsFlags = append(flags.rsFlags, "-m64")
} else {
flags.rsFlags = append(flags.rsFlags, "-m32")
}
flags.rsFlags = append(flags.rsFlags, "${config.RsGlobalIncludes}")
rootRsIncludeDirs := android.PathsForSource(ctx, properties.Renderscript.Include_dirs)
flags.rsFlags = append(flags.rsFlags, includeDirsToFlags(rootRsIncludeDirs))
flags.Local.CommonFlags = append(flags.Local.CommonFlags,
"-I"+android.PathForModuleGen(ctx, "rs").String(),
"-Iframeworks/rs",
"-Iframeworks/rs/cpp",
)
return flags
}
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