1516 lines
46 KiB
C++
1516 lines
46 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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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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*/
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#include "AST.h"
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#include "Coordinator.h"
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#include "Scope.h"
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#include <hidl-hash/Hash.h>
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#include <hidl-util/Formatter.h>
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#include <hidl-util/FQName.h>
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#include <hidl-util/StringHelper.h>
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#include <android-base/logging.h>
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#include <set>
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#include <stdio.h>
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#include <string>
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#include <unistd.h>
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#include <vector>
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using namespace android;
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struct OutputHandler {
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std::string mKey;
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std::string mDescription;
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enum OutputMode {
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NEEDS_DIR,
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NEEDS_FILE,
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NEEDS_SRC, // for changes inside the source tree itself
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NOT_NEEDED
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} mOutputMode;
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const std::string& name() { return mKey; }
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const std::string& description() { return mDescription; }
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using ValidationFunction = std::function<bool(const FQName &, const std::string &language)>;
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using GenerationFunction = std::function<status_t(const FQName &fqName,
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const char *hidl_gen,
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Coordinator *coordinator,
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const std::string &outputDir)>;
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ValidationFunction validate;
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GenerationFunction generate;
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};
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static bool generateForTest = false;
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static status_t generateSourcesForFile(
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const FQName &fqName,
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const char *,
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Coordinator *coordinator,
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const std::string &outputDir,
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const std::string &lang) {
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CHECK(fqName.isFullyQualified());
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AST *ast;
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std::string limitToType;
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if (fqName.name().find("types.") == 0) {
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CHECK(lang == "java"); // Already verified in validate().
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limitToType = fqName.name().substr(strlen("types."));
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FQName typesName = fqName.getTypesForPackage();
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ast = coordinator->parse(typesName);
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} else {
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ast = coordinator->parse(fqName);
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}
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if (ast == NULL) {
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fprintf(stderr,
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"ERROR: Could not parse %s. Aborting.\n",
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fqName.string().c_str());
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return UNKNOWN_ERROR;
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}
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if (lang == "check") {
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return OK; // only parsing, not generating
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}
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if (lang == "c++") {
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return ast->generateCpp(outputDir);
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}
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if (lang == "c++-headers") {
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return ast->generateCppHeaders(outputDir);
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}
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if (lang == "c++-sources") {
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return ast->generateCppSources(outputDir);
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}
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if (lang == "c++-impl") {
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return ast->generateCppImpl(outputDir);
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}
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if (lang == "c++-impl-headers") {
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return ast->generateStubImplHeader(outputDir);
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}
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if (lang == "c++-impl-sources") {
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return ast->generateStubImplSource(outputDir);
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}
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if (lang == "java") {
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return ast->generateJava(outputDir, limitToType);
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}
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if (lang == "vts") {
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return ast->generateVts(outputDir);
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}
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// Unknown language.
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return UNKNOWN_ERROR;
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}
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static status_t generateSourcesForPackage(
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const FQName &packageFQName,
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const char *hidl_gen,
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Coordinator *coordinator,
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const std::string &outputDir,
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const std::string &lang) {
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CHECK(packageFQName.isValid() &&
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!packageFQName.isFullyQualified() &&
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packageFQName.name().empty());
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std::vector<FQName> packageInterfaces;
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status_t err =
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coordinator->appendPackageInterfacesToVector(packageFQName,
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&packageInterfaces);
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if (err != OK) {
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return err;
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}
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for (const auto &fqName : packageInterfaces) {
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err = generateSourcesForFile(
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fqName, hidl_gen, coordinator, outputDir, lang);
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if (err != OK) {
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return err;
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}
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}
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return OK;
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}
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OutputHandler::GenerationFunction generationFunctionForFileOrPackage(const std::string &language) {
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return [language](const FQName &fqName,
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const char *hidl_gen, Coordinator *coordinator,
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const std::string &outputDir) -> status_t {
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if (fqName.isFullyQualified()) {
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return generateSourcesForFile(fqName,
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hidl_gen,
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coordinator,
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outputDir,
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language);
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} else {
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return generateSourcesForPackage(fqName,
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hidl_gen,
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coordinator,
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outputDir,
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language);
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}
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};
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}
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static std::string makeLibraryName(const FQName &packageFQName) {
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return packageFQName.string();
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}
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static std::string makeJavaLibraryName(const FQName &packageFQName) {
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std::string out;
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out = packageFQName.package();
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out += "-V";
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out += packageFQName.version();
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return out;
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}
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static void generatePackagePathsSection(
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Formatter &out,
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Coordinator *coordinator,
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const FQName &packageFQName,
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const std::set<FQName> &importedPackages,
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bool forMakefiles = false) {
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std::set<std::string> options{};
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for (const auto &interface : importedPackages) {
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options.insert(coordinator->getPackageRootOption(interface));
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}
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options.insert(coordinator->getPackageRootOption(packageFQName));
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options.insert(coordinator->getPackageRootOption(gIBaseFqName));
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for (const auto &option : options) {
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out << "-r"
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<< option
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<< " ";
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if (forMakefiles) {
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out << "\\\n";
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}
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}
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}
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static void generateMakefileSectionForType(
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Formatter &out,
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Coordinator *coordinator,
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const FQName &packageFQName,
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const FQName &fqName,
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const std::set<FQName> &importedPackages,
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const char *typeName) {
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out << "\n"
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<< "\n#"
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<< "\n# Build " << fqName.name() << ".hal";
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if (typeName != nullptr) {
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out << " (" << typeName << ")";
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}
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out << "\n#"
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<< "\nGEN := $(intermediates)/"
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<< coordinator->convertPackageRootToPath(packageFQName)
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<< coordinator->getPackagePath(packageFQName, true /* relative */,
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true /* sanitized */);
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if (typeName == nullptr) {
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out << fqName.name() << ".java";
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} else {
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out << typeName << ".java";
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}
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out << "\n$(GEN): $(HIDL)";
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out << "\n$(GEN): PRIVATE_HIDL := $(HIDL)";
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out << "\n$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/"
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<< fqName.name() << ".hal";
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{
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AST *ast = coordinator->parse(fqName);
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CHECK(ast != nullptr);
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const std::set<FQName>& refs = ast->getImportedNames();
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for (auto depFQName : refs) {
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// If the package of depFQName is the same as this fqName's package,
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// then add it explicitly as a .hal dependency within the same
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// package.
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if (fqName.package() == depFQName.package() &&
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fqName.version() == depFQName.version()) {
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// PRIVATE_DEPS is not actually being used in the
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// auto-generated file, but is necessary if the build rule
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// ever needs to use the dependency information, since the
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// built-in Make variables are not supported in the Android
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// build system.
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out << "\n$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/"
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<< depFQName.name() << ".hal";
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// This is the actual dependency.
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out << "\n$(GEN): $(LOCAL_PATH)/"
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<< depFQName.name() << ".hal";
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}
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}
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}
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out << "\n$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)"
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<< "\n$(GEN): PRIVATE_CUSTOM_TOOL = \\";
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out.indent();
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out.indent();
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out << "\n$(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \\"
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<< "\n-Ljava \\\n";
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generatePackagePathsSection(out, coordinator, packageFQName, importedPackages, true /* forJava */);
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out << packageFQName.string()
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<< "::"
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<< fqName.name();
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if (typeName != nullptr) {
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out << "." << typeName;
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}
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out << "\n";
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out.unindent();
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out.unindent();
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out << "\n$(GEN): $(LOCAL_PATH)/" << fqName.name() << ".hal";
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out << "\n\t$(transform-generated-source)";
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out << "\nLOCAL_GENERATED_SOURCES += $(GEN)";
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}
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static void generateMakefileSection(
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Formatter &out,
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Coordinator *coordinator,
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const FQName &packageFQName,
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const std::vector<FQName> &packageInterfaces,
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const std::set<FQName> &importedPackages,
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AST *typesAST) {
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for (const auto &fqName : packageInterfaces) {
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if (fqName.name() == "types") {
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CHECK(typesAST != nullptr);
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Scope* rootScope = typesAST->getRootScope();
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std::vector<NamedType *> subTypes = rootScope->getSubTypes();
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std::sort(
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subTypes.begin(),
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subTypes.end(),
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[](const NamedType *a, const NamedType *b) -> bool {
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return a->fqName() < b->fqName();
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});
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for (const auto &type : subTypes) {
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if (type->isTypeDef()) {
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continue;
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}
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generateMakefileSectionForType(
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out,
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coordinator,
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packageFQName,
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fqName,
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importedPackages,
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type->localName().c_str());
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}
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continue;
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}
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generateMakefileSectionForType(
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out,
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coordinator,
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packageFQName,
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fqName,
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importedPackages,
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nullptr /* typeName */);
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}
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}
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static status_t isPackageJavaCompatible(
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const FQName &packageFQName,
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Coordinator *coordinator,
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bool *compatible) {
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std::vector<FQName> todo;
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status_t err =
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coordinator->appendPackageInterfacesToVector(packageFQName, &todo);
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if (err != OK) {
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return err;
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}
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std::set<FQName> seen;
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for (const auto &iface : todo) {
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seen.insert(iface);
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}
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// Form the transitive closure of all imported interfaces (and types.hal-s)
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// If any one of them is not java compatible, this package isn't either.
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while (!todo.empty()) {
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const FQName fqName = todo.back();
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todo.pop_back();
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AST *ast = coordinator->parse(fqName);
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if (ast == nullptr) {
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return UNKNOWN_ERROR;
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}
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if (!ast->isJavaCompatible()) {
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*compatible = false;
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return OK;
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}
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std::set<FQName> importedPackages;
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ast->getImportedPackages(&importedPackages);
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for (const auto &package : importedPackages) {
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std::vector<FQName> packageInterfaces;
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status_t err = coordinator->appendPackageInterfacesToVector(
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package, &packageInterfaces);
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if (err != OK) {
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return err;
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}
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for (const auto &iface : packageInterfaces) {
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if (seen.find(iface) != seen.end()) {
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continue;
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}
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todo.push_back(iface);
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seen.insert(iface);
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}
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}
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}
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*compatible = true;
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return OK;
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}
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static bool packageNeedsJavaCode(
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const std::vector<FQName> &packageInterfaces, AST *typesAST) {
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// If there is more than just a types.hal file to this package we'll
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// definitely need to generate Java code.
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if (packageInterfaces.size() > 1
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|| packageInterfaces[0].name() != "types") {
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return true;
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}
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CHECK(typesAST != nullptr);
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// We'll have to generate Java code if types.hal contains any non-typedef
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// type declarations.
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Scope* rootScope = typesAST->getRootScope();
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std::vector<NamedType *> subTypes = rootScope->getSubTypes();
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for (const auto &subType : subTypes) {
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if (!subType->isTypeDef()) {
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return true;
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}
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}
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return false;
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}
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static void generateMakefileSectionForJavaConstants(
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Formatter &out,
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Coordinator *coordinator,
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const FQName &packageFQName,
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const std::vector<FQName> &packageInterfaces,
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const std::set<FQName> &importedPackages) {
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out << "\n#"
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<< "\nGEN := $(intermediates)/"
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<< coordinator->convertPackageRootToPath(packageFQName)
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<< coordinator->getPackagePath(packageFQName, true /* relative */, true /* sanitized */)
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<< "Constants.java";
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out << "\n$(GEN): $(HIDL)\n";
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for (const auto &iface : packageInterfaces) {
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out << "$(GEN): $(LOCAL_PATH)/" << iface.name() << ".hal\n";
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}
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out << "\n$(GEN): PRIVATE_HIDL := $(HIDL)";
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out << "\n$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)"
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<< "\n$(GEN): PRIVATE_CUSTOM_TOOL = \\";
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out.indent();
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out.indent();
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out << "\n$(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \\"
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<< "\n-Ljava-constants \\\n";
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generatePackagePathsSection(out, coordinator, packageFQName, importedPackages, true /* forJava */);
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out << packageFQName.string();
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out << "\n";
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out.unindent();
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out.unindent();
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out << "\n$(GEN):";
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out << "\n\t$(transform-generated-source)";
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out << "\nLOCAL_GENERATED_SOURCES += $(GEN)";
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}
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static status_t generateMakefileForPackage(
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const FQName &packageFQName,
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const char *hidl_gen,
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Coordinator *coordinator,
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const std::string &outputPath) {
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CHECK(packageFQName.isValid() &&
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!packageFQName.isFullyQualified() &&
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packageFQName.name().empty());
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std::vector<FQName> packageInterfaces;
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status_t err =
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coordinator->appendPackageInterfacesToVector(packageFQName,
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&packageInterfaces);
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if (err != OK) {
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return err;
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}
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std::set<FQName> importedPackages;
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AST *typesAST = nullptr;
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std::vector<const Type *> exportedTypes;
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for (const auto &fqName : packageInterfaces) {
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AST *ast = coordinator->parse(fqName);
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if (ast == NULL) {
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fprintf(stderr,
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"ERROR: Could not parse %s. Aborting.\n",
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fqName.string().c_str());
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return UNKNOWN_ERROR;
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}
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if (fqName.name() == "types") {
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typesAST = ast;
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}
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ast->getImportedPackagesHierarchy(&importedPackages);
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ast->appendToExportedTypesVector(&exportedTypes);
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}
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bool packageIsJavaCompatible;
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err = isPackageJavaCompatible(
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packageFQName, coordinator, &packageIsJavaCompatible);
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|
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if (err != OK) {
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return err;
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}
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|
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bool haveJavaConstants = !exportedTypes.empty();
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|
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if (!packageIsJavaCompatible && !haveJavaConstants) {
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// TODO(b/33420795)
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fprintf(stderr,
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"WARNING: %s is not java compatible. No java makefile created.\n",
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packageFQName.string().c_str());
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return OK;
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}
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|
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if (!packageNeedsJavaCode(packageInterfaces, typesAST)) {
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return OK;
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}
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|
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std::string path = outputPath;
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path.append(coordinator->getPackagePath(packageFQName, false /* relative */));
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path.append("Android.mk");
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CHECK(Coordinator::MakeParentHierarchy(path));
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FILE *file = fopen(path.c_str(), "w");
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|
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if (file == NULL) {
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return -errno;
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}
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|
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const std::string libraryName = makeJavaLibraryName(packageFQName);
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|
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Formatter out(file);
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out << "# This file is autogenerated by hidl-gen. Do not edit manually.\n\n";
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out << "LOCAL_PATH := $(call my-dir)\n";
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|
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enum LibraryStyle {
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LIBRARY_STYLE_REGULAR,
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LIBRARY_STYLE_STATIC,
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LIBRARY_STYLE_END,
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};
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|
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for (int style = LIBRARY_STYLE_REGULAR;
|
|
(packageIsJavaCompatible && style != LIBRARY_STYLE_END);
|
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++style) {
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const std::string staticSuffix =
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(style == LIBRARY_STYLE_STATIC) ? "-static" : "";
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|
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out << "\n"
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<< "########################################"
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<< "########################################\n\n";
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|
|
out << "include $(CLEAR_VARS)\n"
|
|
<< "LOCAL_MODULE := "
|
|
<< libraryName
|
|
<< "-java"
|
|
<< staticSuffix
|
|
<< "\nLOCAL_MODULE_CLASS := JAVA_LIBRARIES\n\n"
|
|
<< "intermediates := $(call local-generated-sources-dir, COMMON)"
|
|
<< "\n\n"
|
|
<< "HIDL := $(HOST_OUT_EXECUTABLES)/"
|
|
<< hidl_gen
|
|
<< "$(HOST_EXECUTABLE_SUFFIX)";
|
|
|
|
if (!importedPackages.empty()) {
|
|
out << "\n"
|
|
<< "\nLOCAL_"
|
|
<< ((style == LIBRARY_STYLE_STATIC) ? "STATIC_" : "")
|
|
<< "JAVA_LIBRARIES := \\";
|
|
|
|
out.indent();
|
|
for (const auto &importedPackage : importedPackages) {
|
|
out << "\n"
|
|
<< makeJavaLibraryName(importedPackage)
|
|
<< "-java"
|
|
<< staticSuffix
|
|
<< " \\";
|
|
}
|
|
out << "\n";
|
|
out.unindent();
|
|
}
|
|
|
|
generateMakefileSection(
|
|
out,
|
|
coordinator,
|
|
packageFQName,
|
|
packageInterfaces,
|
|
importedPackages,
|
|
typesAST);
|
|
|
|
out << "\ninclude $(BUILD_"
|
|
<< ((style == LIBRARY_STYLE_STATIC) ? "STATIC_" : "")
|
|
<< "JAVA_LIBRARY)\n\n";
|
|
}
|
|
|
|
if (haveJavaConstants) {
|
|
out << "\n"
|
|
<< "########################################"
|
|
<< "########################################\n\n";
|
|
|
|
out << "include $(CLEAR_VARS)\n"
|
|
<< "LOCAL_MODULE := "
|
|
<< libraryName
|
|
<< "-java-constants"
|
|
<< "\nLOCAL_MODULE_CLASS := JAVA_LIBRARIES\n\n"
|
|
<< "intermediates := $(call local-generated-sources-dir, COMMON)"
|
|
<< "\n\n"
|
|
<< "HIDL := $(HOST_OUT_EXECUTABLES)/"
|
|
<< hidl_gen
|
|
<< "$(HOST_EXECUTABLE_SUFFIX)";
|
|
|
|
generateMakefileSectionForJavaConstants(
|
|
out, coordinator, packageFQName, packageInterfaces, importedPackages);
|
|
|
|
out << "\n# Avoid dependency cycle of framework.jar -> this-library "
|
|
<< "-> framework.jar\n"
|
|
<< "LOCAL_NO_STANDARD_LIBRARIES := true\n"
|
|
<< "LOCAL_JAVA_LIBRARIES := core-oj\n\n"
|
|
<< "include $(BUILD_STATIC_JAVA_LIBRARY)\n\n";
|
|
}
|
|
|
|
out << "\n\n"
|
|
<< "include $(call all-makefiles-under,$(LOCAL_PATH))\n";
|
|
|
|
return OK;
|
|
}
|
|
|
|
bool validateIsPackage(
|
|
const FQName &fqName, const std::string & /* language */) {
|
|
if (fqName.package().empty()) {
|
|
fprintf(stderr, "ERROR: Expecting package name\n");
|
|
return false;
|
|
}
|
|
|
|
if (fqName.version().empty()) {
|
|
fprintf(stderr, "ERROR: Expecting package version\n");
|
|
return false;
|
|
}
|
|
|
|
if (!fqName.name().empty()) {
|
|
fprintf(stderr,
|
|
"ERROR: Expecting only package name and version.\n");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool isHidlTransportPackage(const FQName& fqName) {
|
|
return fqName.package() == gIBasePackageFqName.string() ||
|
|
fqName.package() == gIManagerPackageFqName.string();
|
|
}
|
|
|
|
bool isSystemProcessSupportedPackage(const FQName& fqName) {
|
|
// Technically, so is hidl IBase + IServiceManager, but
|
|
// these are part of libhidltransport.
|
|
return fqName.string() == "android.hardware.graphics.allocator@2.0" ||
|
|
fqName.string() == "android.hardware.graphics.common@1.0" ||
|
|
fqName.string() == "android.hardware.graphics.mapper@2.0" ||
|
|
fqName.string() == "android.hardware.renderscript@1.0" ||
|
|
fqName.string() == "android.hidl.memory@1.0";
|
|
}
|
|
|
|
bool isSystemPackage(const FQName &package) {
|
|
return package.inPackage("android.hidl") ||
|
|
package.inPackage("android.system") ||
|
|
package.inPackage("android.frameworks") ||
|
|
package.inPackage("android.hardware");
|
|
}
|
|
|
|
static void generateAndroidBpGenSection(
|
|
Formatter &out,
|
|
const FQName &packageFQName,
|
|
const char *hidl_gen,
|
|
Coordinator *coordinator,
|
|
const std::string &halFilegroupName,
|
|
const std::string &genName,
|
|
const char *language,
|
|
const std::vector<FQName> &packageInterfaces,
|
|
const std::set<FQName> &importedPackages,
|
|
const std::function<void(Formatter&, const FQName)> outputFn) {
|
|
|
|
out << "genrule {\n";
|
|
out.indent();
|
|
out << "name: \"" << genName << "\",\n"
|
|
<< "tools: [\"" << hidl_gen << "\"],\n";
|
|
|
|
out << "cmd: \"$(location " << hidl_gen << ") -o $(genDir)"
|
|
<< " -L" << language << " ";
|
|
|
|
generatePackagePathsSection(out, coordinator, packageFQName, importedPackages);
|
|
|
|
out << packageFQName.string() << "\",\n";
|
|
|
|
out << "srcs: [\n";
|
|
out.indent();
|
|
out << "\":" << halFilegroupName << "\",\n";
|
|
out.unindent();
|
|
out << "],\n";
|
|
|
|
out << "out: [\n";
|
|
out.indent();
|
|
for (const auto &fqName : packageInterfaces) {
|
|
outputFn(out, fqName);
|
|
}
|
|
out.unindent();
|
|
out << "],\n";
|
|
|
|
out.unindent();
|
|
out << "}\n\n";
|
|
}
|
|
|
|
static void generateAndroidBpDependencyList(
|
|
Formatter &out,
|
|
const std::set<FQName> &importedPackagesHierarchy,
|
|
bool generateVendor) {
|
|
for (const auto &importedPackage : importedPackagesHierarchy) {
|
|
if (isHidlTransportPackage(importedPackage)) {
|
|
continue;
|
|
}
|
|
|
|
out << "\"" << makeLibraryName(importedPackage);
|
|
if (generateVendor && !isSystemPackage(importedPackage)) {
|
|
out << "_vendor";
|
|
}
|
|
out << "\",\n";
|
|
}
|
|
}
|
|
|
|
static void generateAndroidBpLibSection(
|
|
Formatter &out,
|
|
bool generateVendor,
|
|
const FQName &packageFQName,
|
|
const std::string &libraryName,
|
|
const std::string &genSourceName,
|
|
const std::string &genHeaderName,
|
|
const std::set<FQName> &importedPackagesHierarchy) {
|
|
|
|
// C++ library definition
|
|
out << "cc_library {\n";
|
|
out.indent();
|
|
out << "name: \"" << libraryName << (generateVendor ? "_vendor" : "") << "\",\n"
|
|
<< "defaults: [\"hidl-module-defaults\"],\n"
|
|
<< "generated_sources: [\"" << genSourceName << "\"],\n"
|
|
<< "generated_headers: [\"" << genHeaderName << "\"],\n"
|
|
<< "export_generated_headers: [\"" << genHeaderName << "\"],\n";
|
|
|
|
if (generateVendor) {
|
|
out << "vendor: true,\n";
|
|
} else {
|
|
out << "vendor_available: true,\n";
|
|
if (!generateForTest) {
|
|
out << "vndk: ";
|
|
out.block([&]() {
|
|
out << "enabled: true,\n";
|
|
if (isSystemProcessSupportedPackage(packageFQName)) {
|
|
out << "support_system_process: true,\n";
|
|
}
|
|
}) << ",\n";
|
|
}
|
|
}
|
|
out << "shared_libs: [\n";
|
|
|
|
out.indent();
|
|
out << "\"libhidlbase\",\n"
|
|
<< "\"libhidltransport\",\n"
|
|
<< "\"libhwbinder\",\n"
|
|
<< "\"liblog\",\n"
|
|
<< "\"libutils\",\n"
|
|
<< "\"libcutils\",\n";
|
|
generateAndroidBpDependencyList(out, importedPackagesHierarchy, generateVendor);
|
|
out.unindent();
|
|
|
|
out << "],\n";
|
|
|
|
out << "export_shared_lib_headers: [\n";
|
|
out.indent();
|
|
out << "\"libhidlbase\",\n"
|
|
<< "\"libhidltransport\",\n"
|
|
<< "\"libhwbinder\",\n"
|
|
<< "\"libutils\",\n";
|
|
generateAndroidBpDependencyList(out, importedPackagesHierarchy, generateVendor);
|
|
out.unindent();
|
|
out << "],\n";
|
|
out.unindent();
|
|
|
|
out << "}\n";
|
|
}
|
|
|
|
static status_t generateAndroidBpForPackage(
|
|
const FQName &packageFQName,
|
|
const char *hidl_gen,
|
|
Coordinator *coordinator,
|
|
const std::string &outputPath) {
|
|
|
|
CHECK(packageFQName.isValid() &&
|
|
!packageFQName.isFullyQualified() &&
|
|
packageFQName.name().empty());
|
|
|
|
std::vector<FQName> packageInterfaces;
|
|
|
|
status_t err =
|
|
coordinator->appendPackageInterfacesToVector(packageFQName,
|
|
&packageInterfaces);
|
|
|
|
if (err != OK) {
|
|
return err;
|
|
}
|
|
|
|
std::set<FQName> importedPackagesHierarchy;
|
|
AST *typesAST = nullptr;
|
|
|
|
for (const auto &fqName : packageInterfaces) {
|
|
AST *ast = coordinator->parse(fqName);
|
|
|
|
if (ast == NULL) {
|
|
fprintf(stderr,
|
|
"ERROR: Could not parse %s. Aborting.\n",
|
|
fqName.string().c_str());
|
|
|
|
return UNKNOWN_ERROR;
|
|
}
|
|
|
|
if (fqName.name() == "types") {
|
|
typesAST = ast;
|
|
}
|
|
|
|
ast->getImportedPackagesHierarchy(&importedPackagesHierarchy);
|
|
}
|
|
|
|
std::string path = outputPath;
|
|
path.append(coordinator->getPackagePath(packageFQName, false /* relative */));
|
|
path.append("Android.bp");
|
|
|
|
CHECK(Coordinator::MakeParentHierarchy(path));
|
|
FILE *file = fopen(path.c_str(), "w");
|
|
|
|
if (file == NULL) {
|
|
return -errno;
|
|
}
|
|
|
|
const std::string libraryName = makeLibraryName(packageFQName);
|
|
const std::string halFilegroupName = libraryName + "_hal";
|
|
const std::string genSourceName = libraryName + "_genc++";
|
|
const std::string genHeaderName = libraryName + "_genc++_headers";
|
|
const std::string pathPrefix =
|
|
coordinator->convertPackageRootToPath(packageFQName) +
|
|
coordinator->getPackagePath(packageFQName, true /* relative */);
|
|
|
|
Formatter out(file);
|
|
|
|
out << "// This file is autogenerated by hidl-gen. Do not edit manually.\n\n";
|
|
|
|
// Rule to generate .hal filegroup
|
|
out << "filegroup {\n";
|
|
out.indent();
|
|
out << "name: \"" << halFilegroupName << "\",\n";
|
|
out << "srcs: [\n";
|
|
out.indent();
|
|
for (const auto &fqName : packageInterfaces) {
|
|
out << "\"" << fqName.name() << ".hal\",\n";
|
|
}
|
|
out.unindent();
|
|
out << "],\n";
|
|
out.unindent();
|
|
out << "}\n\n";
|
|
|
|
// Rule to generate the C++ source files
|
|
generateAndroidBpGenSection(
|
|
out,
|
|
packageFQName,
|
|
hidl_gen,
|
|
coordinator,
|
|
halFilegroupName,
|
|
genSourceName,
|
|
"c++-sources",
|
|
packageInterfaces,
|
|
importedPackagesHierarchy,
|
|
[&pathPrefix](Formatter &out, const FQName &fqName) {
|
|
if (fqName.name() == "types") {
|
|
out << "\"" << pathPrefix << "types.cpp\",\n";
|
|
} else {
|
|
out << "\"" << pathPrefix << fqName.name().substr(1) << "All.cpp\",\n";
|
|
}
|
|
});
|
|
|
|
// Rule to generate the C++ header files
|
|
generateAndroidBpGenSection(
|
|
out,
|
|
packageFQName,
|
|
hidl_gen,
|
|
coordinator,
|
|
halFilegroupName,
|
|
genHeaderName,
|
|
"c++-headers",
|
|
packageInterfaces,
|
|
importedPackagesHierarchy,
|
|
[&pathPrefix](Formatter &out, const FQName &fqName) {
|
|
out << "\"" << pathPrefix << fqName.name() << ".h\",\n";
|
|
if (fqName.name() != "types") {
|
|
out << "\"" << pathPrefix << fqName.getInterfaceHwName() << ".h\",\n";
|
|
out << "\"" << pathPrefix << fqName.getInterfaceStubName() << ".h\",\n";
|
|
out << "\"" << pathPrefix << fqName.getInterfaceProxyName() << ".h\",\n";
|
|
out << "\"" << pathPrefix << fqName.getInterfacePassthroughName() << ".h\",\n";
|
|
} else {
|
|
out << "\"" << pathPrefix << "hwtypes.h\",\n";
|
|
}
|
|
});
|
|
|
|
if (isHidlTransportPackage(packageFQName)) {
|
|
out << "// " << packageFQName.string() << " is exported from libhidltransport\n";
|
|
} else {
|
|
generateAndroidBpLibSection(
|
|
out,
|
|
false /* generateVendor */,
|
|
packageFQName,
|
|
libraryName,
|
|
genSourceName,
|
|
genHeaderName,
|
|
importedPackagesHierarchy);
|
|
|
|
// TODO(b/35813011): make all libraries vendor_available
|
|
// Explicitly create '_vendor' copies of libraries so that
|
|
// vendor code can link against the extensions. When this is
|
|
// used, framework code should link against vendor.awesome.foo@1.0
|
|
// and code on the vendor image should link against
|
|
// vendor.awesome.foo@1.0_vendor. For libraries with the below extensions,
|
|
// they will be available even on the generic system image.
|
|
// Because of this, they should always be referenced without the
|
|
// '_vendor' name suffix.
|
|
if (!isSystemPackage(packageFQName)) {
|
|
|
|
// Note, not using cc_defaults here since it's already not used and
|
|
// because generating this libraries will be removed when the VNDK
|
|
// is enabled (done by the build system itself).
|
|
out.endl();
|
|
generateAndroidBpLibSection(
|
|
out,
|
|
true /* generateVendor */,
|
|
packageFQName,
|
|
libraryName,
|
|
genSourceName,
|
|
genHeaderName,
|
|
importedPackagesHierarchy);
|
|
}
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
static status_t generateAndroidBpImplForPackage(
|
|
const FQName &packageFQName,
|
|
const char *,
|
|
Coordinator *coordinator,
|
|
const std::string &outputDir) {
|
|
|
|
const std::string libraryName = makeLibraryName(packageFQName) + "-impl";
|
|
|
|
std::vector<FQName> packageInterfaces;
|
|
|
|
status_t err =
|
|
coordinator->appendPackageInterfacesToVector(packageFQName,
|
|
&packageInterfaces);
|
|
|
|
if (err != OK) {
|
|
return err;
|
|
}
|
|
|
|
std::set<FQName> importedPackages;
|
|
|
|
for (const auto &fqName : packageInterfaces) {
|
|
AST *ast = coordinator->parse(fqName);
|
|
|
|
if (ast == NULL) {
|
|
fprintf(stderr,
|
|
"ERROR: Could not parse %s. Aborting.\n",
|
|
fqName.string().c_str());
|
|
|
|
return UNKNOWN_ERROR;
|
|
}
|
|
|
|
ast->getImportedPackages(&importedPackages);
|
|
}
|
|
|
|
std::string path = outputDir + "Android.bp";
|
|
|
|
CHECK(Coordinator::MakeParentHierarchy(path));
|
|
FILE *file = fopen(path.c_str(), "w");
|
|
|
|
if (file == NULL) {
|
|
return -errno;
|
|
}
|
|
|
|
Formatter out(file);
|
|
|
|
out << "cc_library_shared {\n";
|
|
out.indent([&] {
|
|
out << "name: \"" << libraryName << "\",\n"
|
|
<< "relative_install_path: \"hw\",\n"
|
|
<< "proprietary: true,\n"
|
|
<< "srcs: [\n";
|
|
out.indent([&] {
|
|
for (const auto &fqName : packageInterfaces) {
|
|
if (fqName.name() == "types") {
|
|
continue;
|
|
}
|
|
out << "\"" << fqName.getInterfaceBaseName() << ".cpp\",\n";
|
|
}
|
|
});
|
|
out << "],\n"
|
|
<< "shared_libs: [\n";
|
|
out.indent([&] {
|
|
out << "\"libhidlbase\",\n"
|
|
<< "\"libhidltransport\",\n"
|
|
<< "\"libutils\",\n"
|
|
<< "\"" << makeLibraryName(packageFQName) << "\",\n";
|
|
|
|
for (const auto &importedPackage : importedPackages) {
|
|
if (isHidlTransportPackage(importedPackage)) {
|
|
continue;
|
|
}
|
|
|
|
out << "\"" << makeLibraryName(importedPackage) << "\",\n";
|
|
}
|
|
});
|
|
out << "],\n";
|
|
});
|
|
out << "}\n";
|
|
|
|
return OK;
|
|
}
|
|
|
|
bool validateForSource(
|
|
const FQName &fqName, const std::string &language) {
|
|
if (fqName.package().empty()) {
|
|
fprintf(stderr, "ERROR: Expecting package name\n");
|
|
return false;
|
|
}
|
|
|
|
if (fqName.version().empty()) {
|
|
fprintf(stderr, "ERROR: Expecting package version\n");
|
|
return false;
|
|
}
|
|
|
|
const std::string &name = fqName.name();
|
|
if (!name.empty()) {
|
|
if (name.find('.') == std::string::npos) {
|
|
return true;
|
|
}
|
|
|
|
if (language != "java" || name.find("types.") != 0) {
|
|
// When generating java sources for "types.hal", output can be
|
|
// constrained to just one of the top-level types declared
|
|
// by using the extended syntax
|
|
// android.hardware.Foo@1.0::types.TopLevelTypeName.
|
|
// In all other cases (different language, not 'types') the dot
|
|
// notation in the name is illegal in this context.
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
OutputHandler::GenerationFunction generateExportHeaderForPackage(bool forJava) {
|
|
return [forJava](const FQName &packageFQName,
|
|
const char * /* hidl_gen */,
|
|
Coordinator *coordinator,
|
|
const std::string &outputPath) -> status_t {
|
|
CHECK(packageFQName.isValid()
|
|
&& !packageFQName.package().empty()
|
|
&& !packageFQName.version().empty()
|
|
&& packageFQName.name().empty());
|
|
|
|
std::vector<FQName> packageInterfaces;
|
|
|
|
status_t err = coordinator->appendPackageInterfacesToVector(
|
|
packageFQName, &packageInterfaces);
|
|
|
|
if (err != OK) {
|
|
return err;
|
|
}
|
|
|
|
std::vector<const Type *> exportedTypes;
|
|
|
|
for (const auto &fqName : packageInterfaces) {
|
|
AST *ast = coordinator->parse(fqName);
|
|
|
|
if (ast == NULL) {
|
|
fprintf(stderr,
|
|
"ERROR: Could not parse %s. Aborting.\n",
|
|
fqName.string().c_str());
|
|
|
|
return UNKNOWN_ERROR;
|
|
}
|
|
|
|
ast->appendToExportedTypesVector(&exportedTypes);
|
|
}
|
|
|
|
if (exportedTypes.empty()) {
|
|
return OK;
|
|
}
|
|
|
|
std::string path = outputPath;
|
|
|
|
if (forJava) {
|
|
path.append(coordinator->convertPackageRootToPath(packageFQName));
|
|
|
|
path.append(coordinator->getPackagePath(
|
|
packageFQName, true /* relative */, true /* sanitized */));
|
|
|
|
path.append("Constants.java");
|
|
}
|
|
|
|
CHECK(Coordinator::MakeParentHierarchy(path));
|
|
FILE *file = fopen(path.c_str(), "w");
|
|
|
|
if (file == nullptr) {
|
|
return -errno;
|
|
}
|
|
|
|
Formatter out(file);
|
|
|
|
out << "// This file is autogenerated by hidl-gen. Do not edit manually.\n"
|
|
<< "// Source: " << packageFQName.string() << "\n"
|
|
<< "// Root: " << coordinator->getPackageRootOption(packageFQName) << "\n\n";
|
|
|
|
std::string guard;
|
|
if (forJava) {
|
|
out << "package " << packageFQName.javaPackage() << ";\n\n";
|
|
out << "public class Constants {\n";
|
|
out.indent();
|
|
} else {
|
|
guard = "HIDL_GENERATED_";
|
|
guard += StringHelper::Uppercase(packageFQName.tokenName());
|
|
guard += "_";
|
|
guard += "EXPORTED_CONSTANTS_H_";
|
|
|
|
out << "#ifndef "
|
|
<< guard
|
|
<< "\n#define "
|
|
<< guard
|
|
<< "\n\n#ifdef __cplusplus\nextern \"C\" {\n#endif\n\n";
|
|
}
|
|
|
|
for (const auto &type : exportedTypes) {
|
|
type->emitExportedHeader(out, forJava);
|
|
}
|
|
|
|
if (forJava) {
|
|
out.unindent();
|
|
out << "}\n";
|
|
} else {
|
|
out << "#ifdef __cplusplus\n}\n#endif\n\n#endif // "
|
|
<< guard
|
|
<< "\n";
|
|
}
|
|
|
|
return OK;
|
|
};
|
|
}
|
|
|
|
static status_t generateHashOutput(const FQName &fqName,
|
|
const char* /*hidl_gen*/,
|
|
Coordinator *coordinator,
|
|
const std::string & /*outputDir*/) {
|
|
|
|
status_t err;
|
|
std::vector<FQName> packageInterfaces;
|
|
|
|
if (fqName.isFullyQualified()) {
|
|
packageInterfaces = {fqName};
|
|
} else {
|
|
err = coordinator->appendPackageInterfacesToVector(
|
|
fqName, &packageInterfaces);
|
|
if (err != OK) {
|
|
return err;
|
|
}
|
|
}
|
|
|
|
for (const auto ¤tFqName : packageInterfaces) {
|
|
AST* ast = coordinator->parse(currentFqName, {} /* parsed */,
|
|
Coordinator::Enforce::NO_HASH /* enforcement */);
|
|
|
|
if (ast == NULL) {
|
|
fprintf(stderr,
|
|
"ERROR: Could not parse %s. Aborting.\n",
|
|
currentFqName.string().c_str());
|
|
|
|
return UNKNOWN_ERROR;
|
|
}
|
|
|
|
printf("%s %s\n",
|
|
Hash::getHash(ast->getFilename()).hexString().c_str(),
|
|
currentFqName.string().c_str());
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
static std::vector<OutputHandler> formats = {
|
|
{"check",
|
|
"Parses the interface to see if valid but doesn't write any files.",
|
|
OutputHandler::NOT_NEEDED /* mOutputMode */,
|
|
validateForSource,
|
|
generationFunctionForFileOrPackage("check")
|
|
},
|
|
|
|
{"c++",
|
|
"(internal) (deprecated) Generates C++ interface files for talking to HIDL interfaces.",
|
|
OutputHandler::NEEDS_DIR /* mOutputMode */,
|
|
validateForSource,
|
|
generationFunctionForFileOrPackage("c++")
|
|
},
|
|
|
|
{"c++-headers",
|
|
"(internal) Generates C++ headers for interface files for talking to HIDL interfaces.",
|
|
OutputHandler::NEEDS_DIR /* mOutputMode */,
|
|
validateForSource,
|
|
generationFunctionForFileOrPackage("c++-headers")
|
|
},
|
|
|
|
{"c++-sources",
|
|
"(internal) Generates C++ sources for interface files for talking to HIDL interfaces.",
|
|
OutputHandler::NEEDS_DIR /* mOutputMode */,
|
|
validateForSource,
|
|
generationFunctionForFileOrPackage("c++-sources")
|
|
},
|
|
|
|
{"export-header",
|
|
"Generates a header file from @export enumerations to help maintain legacy code.",
|
|
OutputHandler::NEEDS_FILE /* mOutputMode */,
|
|
validateIsPackage,
|
|
generateExportHeaderForPackage(false /* forJava */)
|
|
},
|
|
|
|
{"c++-impl",
|
|
"Generates boilerplate implementation of a hidl interface in C++ (for convenience).",
|
|
OutputHandler::NEEDS_DIR /* mOutputMode */,
|
|
validateForSource,
|
|
generationFunctionForFileOrPackage("c++-impl")
|
|
},
|
|
{"c++-impl-headers",
|
|
"c++-impl but headers only",
|
|
OutputHandler::NEEDS_DIR /* mOutputMode */,
|
|
validateForSource,
|
|
generationFunctionForFileOrPackage("c++-impl-headers")
|
|
},
|
|
{"c++-impl-sources",
|
|
"c++-impl but sources only",
|
|
OutputHandler::NEEDS_DIR /* mOutputMode */,
|
|
validateForSource,
|
|
generationFunctionForFileOrPackage("c++-impl-sources")
|
|
},
|
|
|
|
{"java",
|
|
"(internal) Generates Java library for talking to HIDL interfaces in Java.",
|
|
OutputHandler::NEEDS_DIR /* mOutputMode */,
|
|
validateForSource,
|
|
generationFunctionForFileOrPackage("java")
|
|
},
|
|
|
|
{"java-constants",
|
|
"(internal) Like export-header but for Java (always created by -Lmakefile if @export exists).",
|
|
OutputHandler::NEEDS_DIR /* mOutputMode */,
|
|
validateIsPackage,
|
|
generateExportHeaderForPackage(true /* forJava */)
|
|
},
|
|
|
|
{"vts",
|
|
"(internal) Generates vts proto files for use in vtsd.",
|
|
OutputHandler::NEEDS_DIR /* mOutputMode */,
|
|
validateForSource,
|
|
generationFunctionForFileOrPackage("vts")
|
|
},
|
|
|
|
{"makefile",
|
|
"(internal) Generates makefiles for -Ljava and -Ljava-constants.",
|
|
OutputHandler::NEEDS_SRC /* mOutputMode */,
|
|
validateIsPackage,
|
|
generateMakefileForPackage,
|
|
},
|
|
|
|
{"androidbp",
|
|
"(internal) Generates Soong bp files for -Lc++-headers and -Lc++-sources.",
|
|
OutputHandler::NEEDS_SRC /* mOutputMode */,
|
|
validateIsPackage,
|
|
generateAndroidBpForPackage,
|
|
},
|
|
|
|
{"androidbp-impl",
|
|
"Generates boilerplate bp files for implementation created with -Lc++-impl.",
|
|
OutputHandler::NEEDS_DIR /* mOutputMode */,
|
|
validateIsPackage,
|
|
generateAndroidBpImplForPackage,
|
|
},
|
|
|
|
{"hash",
|
|
"Prints hashes of interface in `current.txt` format to standard out.",
|
|
OutputHandler::NOT_NEEDED /* mOutputMode */,
|
|
validateForSource,
|
|
generateHashOutput,
|
|
},
|
|
};
|
|
|
|
static void usage(const char *me) {
|
|
fprintf(stderr,
|
|
"usage: %s [-p <root path>] -o <output path> -L <language> (-r <interface root>)+ [-t] "
|
|
"fqname+\n",
|
|
me);
|
|
|
|
fprintf(stderr, " -h: Prints this menu.\n");
|
|
fprintf(stderr, " -L <language>: The following options are available:\n");
|
|
for (auto &e : formats) {
|
|
fprintf(stderr, " %-16s: %s\n", e.name().c_str(), e.description().c_str());
|
|
}
|
|
fprintf(stderr, " -o <output path>: Location to output files.\n");
|
|
fprintf(stderr, " -p <root path>: Android build root, defaults to $ANDROID_BUILD_TOP or pwd.\n");
|
|
fprintf(stderr, " -r <package:path root>: E.g., android.hardware:hardware/interfaces.\n");
|
|
fprintf(stderr, " -t: generate build scripts (Android.bp) for tests.\n");
|
|
}
|
|
|
|
// hidl is intentionally leaky. Turn off LeakSanitizer by default.
|
|
extern "C" const char *__asan_default_options() {
|
|
return "detect_leaks=0";
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
std::string outputPath;
|
|
std::string rootPath;
|
|
std::vector<std::string> packageRootPaths;
|
|
std::vector<std::string> packageRoots;
|
|
|
|
const char *me = argv[0];
|
|
OutputHandler *outputFormat = nullptr;
|
|
|
|
if (argc == 1) {
|
|
usage(me);
|
|
exit(1);
|
|
}
|
|
|
|
int res;
|
|
while ((res = getopt(argc, argv, "hp:o:r:L:t")) >= 0) {
|
|
switch (res) {
|
|
case 'p':
|
|
{
|
|
rootPath = optarg;
|
|
break;
|
|
}
|
|
|
|
case 'o':
|
|
{
|
|
outputPath = optarg;
|
|
break;
|
|
}
|
|
|
|
case 'r':
|
|
{
|
|
std::string val(optarg);
|
|
auto index = val.find_first_of(':');
|
|
if (index == std::string::npos) {
|
|
fprintf(stderr, "ERROR: -r option must contain ':': %s\n", val.c_str());
|
|
exit(1);
|
|
}
|
|
|
|
auto package = val.substr(0, index);
|
|
auto path = val.substr(index + 1);
|
|
packageRootPaths.push_back(path);
|
|
packageRoots.push_back(package);
|
|
break;
|
|
}
|
|
|
|
case 'L':
|
|
{
|
|
if (outputFormat != nullptr) {
|
|
fprintf(stderr,
|
|
"ERROR: only one -L option allowed. \"%s\" already specified.\n",
|
|
outputFormat->name().c_str());
|
|
exit(1);
|
|
}
|
|
for (auto &e : formats) {
|
|
if (e.name() == optarg) {
|
|
outputFormat = &e;
|
|
break;
|
|
}
|
|
}
|
|
if (outputFormat == nullptr) {
|
|
fprintf(stderr,
|
|
"ERROR: unrecognized -L option: \"%s\".\n",
|
|
optarg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 't': {
|
|
generateForTest = true;
|
|
break;
|
|
}
|
|
|
|
case '?':
|
|
case 'h':
|
|
default:
|
|
{
|
|
usage(me);
|
|
exit(1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (outputFormat == nullptr) {
|
|
fprintf(stderr,
|
|
"ERROR: no -L option provided.\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (generateForTest && outputFormat->name() != "androidbp") {
|
|
fprintf(stderr, "ERROR: -t option is for -Landroidbp only.\n");
|
|
exit(1);
|
|
}
|
|
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc == 0) {
|
|
fprintf(stderr, "ERROR: no fqname specified.\n");
|
|
usage(me);
|
|
exit(1);
|
|
}
|
|
|
|
if (rootPath.empty()) {
|
|
const char *ANDROID_BUILD_TOP = getenv("ANDROID_BUILD_TOP");
|
|
|
|
if (ANDROID_BUILD_TOP != nullptr) {
|
|
rootPath = ANDROID_BUILD_TOP;
|
|
}
|
|
|
|
// else default to pwd
|
|
}
|
|
|
|
if (!rootPath.empty() && !StringHelper::EndsWith(rootPath, "/")) {
|
|
rootPath += "/";
|
|
}
|
|
|
|
// Valid options are now in argv[0] .. argv[argc - 1].
|
|
|
|
switch (outputFormat->mOutputMode) {
|
|
case OutputHandler::NEEDS_DIR:
|
|
case OutputHandler::NEEDS_FILE:
|
|
{
|
|
if (outputPath.empty()) {
|
|
usage(me);
|
|
exit(1);
|
|
}
|
|
|
|
if (outputFormat->mOutputMode == OutputHandler::NEEDS_DIR) {
|
|
const size_t len = outputPath.size();
|
|
if (outputPath[len - 1] != '/') {
|
|
outputPath += "/";
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case OutputHandler::NEEDS_SRC:
|
|
{
|
|
if (outputPath.empty()) {
|
|
outputPath = rootPath;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
outputPath.clear(); // Unused.
|
|
break;
|
|
}
|
|
|
|
Coordinator coordinator(packageRootPaths, packageRoots, rootPath);
|
|
coordinator.addDefaultPackagePath("android.hardware", "hardware/interfaces");
|
|
coordinator.addDefaultPackagePath("android.hidl", "system/libhidl/transport");
|
|
coordinator.addDefaultPackagePath("android.frameworks", "frameworks/hardware/interfaces");
|
|
coordinator.addDefaultPackagePath("android.system", "system/hardware/interfaces");
|
|
|
|
for (int i = 0; i < argc; ++i) {
|
|
FQName fqName(argv[i]);
|
|
|
|
if (!fqName.isValid()) {
|
|
fprintf(stderr,
|
|
"ERROR: Invalid fully-qualified name.\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (!outputFormat->validate(fqName, outputFormat->name())) {
|
|
fprintf(stderr,
|
|
"ERROR: output handler failed.\n");
|
|
exit(1);
|
|
}
|
|
|
|
status_t err =
|
|
outputFormat->generate(fqName, me, &coordinator, outputPath);
|
|
|
|
if (err != OK) {
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|