/*
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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 "Interface.h"
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#include "Scope.h"
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#include <android-base/logging.h>
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#include <hidl-hash/Hash.h>
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#include <hidl-util/FQName.h>
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#include <hidl-util/Formatter.h>
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#include <hidl-util/StringHelper.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <iostream>
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#include <set>
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#include <string>
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#include <vector>
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using namespace android;
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enum class OutputMode {
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NEEDS_DIR, // -o output option expects a directory
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NEEDS_FILE, // -o output option expects a file
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NEEDS_SRC, // for changes inside the source tree itself
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NOT_NEEDED // does not create files
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};
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enum class GenerationGranularity {
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PER_PACKAGE, // Files generated for each package
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PER_FILE, // Files generated for each hal file
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PER_TYPE, // Files generated for each hal file + each type in HAL files
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};
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// Represents a file that is generated by an -L option for an FQName
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struct FileGenerator {
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using ShouldGenerateFunction = std::function<bool(const FQName& fqName)>;
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using FileNameForFQName = std::function<std::string(const FQName& fqName)>;
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using GenerationFunction = std::function<status_t(Formatter& out, const FQName& fqName,
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const Coordinator* coordinator)>;
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ShouldGenerateFunction mShouldGenerateForFqName; // If generate function applies to this target
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FileNameForFQName mFileNameForFqName; // Target -> filename
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GenerationFunction mGenerationFunction; // Function to generate output for file
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std::string getFileName(const FQName& fqName) const {
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return mFileNameForFqName ? mFileNameForFqName(fqName) : "";
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}
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status_t getOutputFile(const FQName& fqName, const Coordinator* coordinator,
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Coordinator::Location location, std::string* file) const {
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if (!mShouldGenerateForFqName(fqName)) {
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return OK;
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}
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return coordinator->getFilepath(fqName, location, getFileName(fqName), file);
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}
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status_t appendOutputFiles(const FQName& fqName, const Coordinator* coordinator,
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Coordinator::Location location,
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std::vector<std::string>* outputFiles) const {
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if (location == Coordinator::Location::STANDARD_OUT) {
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return OK;
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}
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if (mShouldGenerateForFqName(fqName)) {
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std::string fileName;
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status_t err = getOutputFile(fqName, coordinator, location, &fileName);
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if (err != OK) return err;
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if (!fileName.empty()) {
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outputFiles->push_back(fileName);
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}
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}
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return OK;
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}
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status_t generate(const FQName& fqName, const Coordinator* coordinator,
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Coordinator::Location location) const {
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CHECK(mShouldGenerateForFqName != nullptr);
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CHECK(mGenerationFunction != nullptr);
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if (!mShouldGenerateForFqName(fqName)) {
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return OK;
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}
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Formatter out = coordinator->getFormatter(fqName, location, getFileName(fqName));
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if (!out.isValid()) {
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return UNKNOWN_ERROR;
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}
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return mGenerationFunction(out, fqName, coordinator);
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}
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// Helper methods for filling out this struct
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static bool generateForTypes(const FQName& fqName) {
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const auto names = fqName.names();
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return names.size() > 0 && names[0] == "types";
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}
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static bool generateForInterfaces(const FQName& fqName) { return !generateForTypes(fqName); }
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static bool alwaysGenerate(const FQName&) { return true; }
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};
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// Represents a -L option, takes a fqName and generates files
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struct OutputHandler {
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using ValidationFunction = std::function<bool(
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const FQName& fqName, const Coordinator* coordinator, const std::string& language)>;
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std::string mKey; // -L in Android.bp
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std::string mDescription; // for display in help menu
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OutputMode mOutputMode; // how this option interacts with -o
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Coordinator::Location mLocation; // how to compute location relative to the output directory
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GenerationGranularity mGenerationGranularity; // what to run generate function on
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ValidationFunction mValidate; // if a given fqName is allowed for this option
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std::vector<FileGenerator> mGenerateFunctions; // run for each target at this granularity
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const std::string& name() const { return mKey; }
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const std::string& description() const { return mDescription; }
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status_t generate(const FQName& fqName, const Coordinator* coordinator) const;
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status_t validate(const FQName& fqName, const Coordinator* coordinator,
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const std::string& language) const {
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return mValidate(fqName, coordinator, language);
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}
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status_t writeDepFile(const FQName& fqName, const Coordinator* coordinator) const;
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private:
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status_t appendTargets(const FQName& fqName, const Coordinator* coordinator,
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std::vector<FQName>* targets) const;
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status_t appendOutputFiles(const FQName& fqName, const Coordinator* coordinator,
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std::vector<std::string>* outputFiles) const;
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};
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// Helper method for GenerationGranularity::PER_TYPE
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// IFoo -> IFoo, types.hal (containing Bar, Baz) -> types.Bar, types.Baz
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static status_t appendPerTypeTargets(const FQName& fqName, const Coordinator* coordinator,
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std::vector<FQName>* exportedPackageInterfaces) {
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CHECK(fqName.isFullyQualified());
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if (fqName.name() != "types") {
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exportedPackageInterfaces->push_back(fqName);
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return OK;
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}
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AST* typesAST = coordinator->parse(fqName);
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if (typesAST == nullptr) {
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fprintf(stderr, "ERROR: Could not parse %s. Aborting.\n", fqName.string().c_str());
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return UNKNOWN_ERROR;
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}
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std::vector<NamedType*> rootTypes = typesAST->getRootScope()->getSubTypes();
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for (const NamedType* rootType : rootTypes) {
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if (rootType->isTypeDef()) continue;
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FQName rootTypeName(fqName.package(), fqName.version(), "types." + rootType->localName());
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exportedPackageInterfaces->push_back(rootTypeName);
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}
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return OK;
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}
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status_t OutputHandler::appendTargets(const FQName& fqName, const Coordinator* coordinator,
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std::vector<FQName>* targets) const {
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switch (mGenerationGranularity) {
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case GenerationGranularity::PER_PACKAGE: {
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targets->push_back(fqName.getPackageAndVersion());
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} break;
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case GenerationGranularity::PER_FILE: {
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if (fqName.isFullyQualified()) {
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targets->push_back(fqName);
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break;
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}
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status_t err = coordinator->appendPackageInterfacesToVector(fqName, targets);
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if (err != OK) return err;
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} break;
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case GenerationGranularity::PER_TYPE: {
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if (fqName.isFullyQualified()) {
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status_t err = appendPerTypeTargets(fqName, coordinator, targets);
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if (err != OK) return err;
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}
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std::vector<FQName> packageInterfaces;
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status_t err = coordinator->appendPackageInterfacesToVector(fqName, &packageInterfaces);
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if (err != OK) return err;
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for (const FQName& packageInterface : packageInterfaces) {
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err = appendPerTypeTargets(packageInterface, coordinator, targets);
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if (err != OK) return err;
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}
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} break;
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default:
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CHECK(!"Should be here");
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}
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return OK;
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}
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status_t OutputHandler::generate(const FQName& fqName, const Coordinator* coordinator) const {
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std::vector<FQName> targets;
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status_t err = appendTargets(fqName, coordinator, &targets);
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if (err != OK) return err;
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for (const FQName& fqName : targets) {
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for (const FileGenerator& file : mGenerateFunctions) {
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status_t err = file.generate(fqName, coordinator, mLocation);
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if (err != OK) return err;
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}
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}
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return OK;
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}
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status_t OutputHandler::appendOutputFiles(const FQName& fqName, const Coordinator* coordinator,
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std::vector<std::string>* outputFiles) const {
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std::vector<FQName> targets;
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status_t err = appendTargets(fqName, coordinator, &targets);
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if (err != OK) return err;
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for (const FQName& fqName : targets) {
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for (const FileGenerator& file : mGenerateFunctions) {
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err = file.appendOutputFiles(fqName, coordinator, mLocation, outputFiles);
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if (err != OK) return err;
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}
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}
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return OK;
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}
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status_t OutputHandler::writeDepFile(const FQName& fqName, const Coordinator* coordinator) const {
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std::vector<std::string> outputFiles;
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status_t err = appendOutputFiles(fqName, coordinator, &outputFiles);
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if (err != OK) return err;
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// No need for dep files
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if (outputFiles.empty()) {
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return OK;
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}
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// Depfiles in Android for genrules should be for the 'main file'. Because hidl-gen doesn't have
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// a main file for most targets, we are just outputting a depfile for one single file only.
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const std::string forFile = outputFiles[0];
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return coordinator->writeDepFile(forFile);
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}
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// Use an AST function as a OutputHandler GenerationFunction
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static FileGenerator::GenerationFunction astGenerationFunction(void (AST::*generate)(Formatter&)
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const = nullptr) {
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return [generate](Formatter& out, const FQName& fqName,
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const Coordinator* coordinator) -> status_t {
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AST* ast = coordinator->parse(fqName);
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if (ast == nullptr) {
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fprintf(stderr, "ERROR: Could not parse %s. Aborting.\n", fqName.string().c_str());
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return UNKNOWN_ERROR;
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}
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if (generate == nullptr) return OK; // just parsing AST
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(ast->*generate)(out);
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return OK;
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};
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}
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// Common pattern: single file for package or standard out
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static FileGenerator singleFileGenerator(
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const std::string& fileName, const FileGenerator::GenerationFunction& generationFunction) {
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return {
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FileGenerator::alwaysGenerate, [fileName](const FQName&) { return fileName; },
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generationFunction,
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};
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}
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static status_t generateJavaForPackage(Formatter& out, const FQName& fqName,
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const Coordinator* coordinator) {
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AST* ast;
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std::string limitToType;
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// Required for legacy -Lmakefile files
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if (fqName.name().find("types.") == 0) {
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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 == nullptr) {
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fprintf(stderr, "ERROR: Could not parse %s. Aborting.\n", fqName.string().c_str());
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return UNKNOWN_ERROR;
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}
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ast->generateJava(out, limitToType);
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return OK;
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};
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static status_t dumpDefinedButUnreferencedTypeNames(const FQName& packageFQName,
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const Coordinator* coordinator) {
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std::vector<FQName> packageInterfaces;
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status_t err = coordinator->appendPackageInterfacesToVector(packageFQName, &packageInterfaces);
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if (err != OK) return err;
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std::set<FQName> unreferencedDefinitions;
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std::set<FQName> unreferencedImports;
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err = coordinator->addUnreferencedTypes(packageInterfaces, &unreferencedDefinitions,
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&unreferencedImports);
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if (err != OK) return err;
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for (const auto& fqName : unreferencedDefinitions) {
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std::cerr
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<< "VERBOSE: DEFINED-BUT-NOT-REFERENCED "
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<< fqName.string()
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<< std::endl;
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}
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for (const auto& fqName : unreferencedImports) {
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std::cerr
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<< "VERBOSE: IMPORTED-BUT-NOT-REFERENCED "
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<< fqName.string()
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<< std::endl;
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}
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return OK;
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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 status_t isPackageJavaCompatible(const FQName& packageFQName, const 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 (packageInterfaces.size() == 0) {
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return false;
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}
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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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bool validateIsPackage(const FQName& fqName, const Coordinator*,
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const std::string& /* language */) {
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if (fqName.package().empty()) {
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fprintf(stderr, "ERROR: Expecting package name\n");
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return false;
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}
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if (fqName.version().empty()) {
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fprintf(stderr, "ERROR: Expecting package version\n");
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return false;
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}
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if (!fqName.name().empty()) {
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fprintf(stderr,
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"ERROR: Expecting only package name and version.\n");
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return false;
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}
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return true;
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}
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bool isHidlTransportPackage(const FQName& fqName) {
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return fqName.package() == gIBaseFqName.package() ||
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fqName.package() == gIManagerFqName.package();
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}
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bool isSystemProcessSupportedPackage(const FQName& fqName) {
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// Technically, so is hidl IBase + IServiceManager, but
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// these are part of libhidltransport.
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return fqName.inPackage("android.hardware.graphics.common") ||
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fqName.inPackage("android.hardware.graphics.mapper") ||
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fqName.string() == "android.hardware.renderscript@1.0" ||
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fqName.string() == "android.hidl.memory.token@1.0" ||
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fqName.string() == "android.hidl.memory@1.0" ||
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fqName.string() == "android.hidl.safe_union@1.0";
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}
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bool isCoreAndroidPackage(const FQName& package) {
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return package.inPackage("android.hidl") ||
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package.inPackage("android.system") ||
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package.inPackage("android.frameworks") ||
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package.inPackage("android.hardware");
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}
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// TODO(b/69862859): remove special case
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status_t isTestPackage(const FQName& fqName, const Coordinator* coordinator, bool* isTestPackage) {
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const auto fileExists = [](const std::string& file) {
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struct stat buf;
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return stat(file.c_str(), &buf) == 0;
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};
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std::string path;
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status_t err = coordinator->getFilepath(fqName, Coordinator::Location::PACKAGE_ROOT,
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".hidl_for_test", &path);
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if (err != OK) return err;
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const bool exists = fileExists(path);
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if (exists) {
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coordinator->onFileAccess(path, "r");
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}
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*isTestPackage = exists;
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return OK;
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}
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static status_t generateAdapterMainSource(Formatter& out, const FQName& packageFQName,
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const Coordinator* coordinator) {
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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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out << "#include <hidladapter/HidlBinderAdapter.h>\n";
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for (auto &interface : packageInterfaces) {
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if (interface.name() == "types") {
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continue;
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}
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AST::generateCppPackageInclude(out, interface, interface.getInterfaceAdapterName());
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}
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out << "int main(int argc, char** argv) ";
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out.block([&] {
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out << "return ::android::hardware::adapterMain<\n";
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out.indent();
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for (auto &interface : packageInterfaces) {
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if (interface.name() == "types") {
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continue;
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}
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out << interface.getInterfaceAdapterFqName().cppName();
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if (&interface != &packageInterfaces.back()) {
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out << ",\n";
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}
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}
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out << ">(\"" << packageFQName.string() << "\", argc, argv);\n";
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out.unindent();
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}).endl();
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return OK;
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}
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static status_t generateAndroidBpForPackage(Formatter& out, const FQName& packageFQName,
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const Coordinator* coordinator) {
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CHECK(!packageFQName.isFullyQualified() && packageFQName.name().empty());
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std::vector<FQName> packageInterfaces;
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status_t err = coordinator->appendPackageInterfacesToVector(packageFQName, &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> importedPackagesHierarchy;
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std::vector<const Type *> exportedTypes;
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AST* typesAST = nullptr;
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for (const auto& fqName : packageInterfaces) {
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AST* ast = coordinator->parse(fqName);
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if (ast == nullptr) {
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fprintf(stderr, "ERROR: Could not parse %s. Aborting.\n", 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(&importedPackagesHierarchy);
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ast->appendToExportedTypesVector(&exportedTypes);
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}
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bool needsJavaCode = packageNeedsJavaCode(packageInterfaces, typesAST);
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bool genJavaConstants = needsJavaCode && !exportedTypes.empty();
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bool isJavaCompatible;
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err = isPackageJavaCompatible(packageFQName, coordinator, &isJavaCompatible);
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if (err != OK) return err;
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bool genJavaLibrary = needsJavaCode && isJavaCompatible;
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bool generateForTest;
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err = isTestPackage(packageFQName, coordinator, &generateForTest);
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if (err != OK) return err;
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bool isCoreAndroid = isCoreAndroidPackage(packageFQName);
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bool isVndk = !generateForTest && isCoreAndroid;
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bool isVndkSp = isVndk && isSystemProcessSupportedPackage(packageFQName);
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// Currently, all platform-provided interfaces are in the VNDK, so if it isn't in the VNDK, it
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// is device specific and so should be put in the product partition.
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bool isProduct = !isCoreAndroid;
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std::string packageRoot;
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err = coordinator->getPackageRoot(packageFQName, &packageRoot);
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if (err != OK) return err;
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out << "// This file is autogenerated by hidl-gen -Landroidbp.\n\n";
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out << "hidl_interface ";
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out.block([&] {
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out << "name: \"" << makeLibraryName(packageFQName) << "\",\n";
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if (!coordinator->getOwner().empty()) {
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out << "owner: \"" << coordinator->getOwner() << "\",\n";
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}
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out << "root: \"" << packageRoot << "\",\n";
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if (isVndk) {
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out << "vndk: ";
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out.block([&]() {
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out << "enabled: true,\n";
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if (isVndkSp) {
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out << "support_system_process: true,\n";
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}
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}) << ",\n";
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}
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if (isProduct) {
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out << "product_specific: true,\n";
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}
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(out << "srcs: [\n").indent([&] {
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for (const auto& fqName : packageInterfaces) {
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out << "\"" << fqName.name() << ".hal\",\n";
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}
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}) << "],\n";
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if (!importedPackagesHierarchy.empty()) {
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(out << "interfaces: [\n").indent([&] {
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for (const auto& fqName : importedPackagesHierarchy) {
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out << "\"" << fqName.string() << "\",\n";
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}
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}) << "],\n";
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}
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// Explicity call this out for developers.
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out << "gen_java: " << (genJavaLibrary ? "true" : "false") << ",\n";
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if (genJavaConstants) {
|
out << "gen_java_constants: true,\n";
|
}
|
}).endl().endl();
|
|
return OK;
|
}
|
|
static status_t generateAndroidBpImplForPackage(Formatter& out, const FQName& packageFQName,
|
const Coordinator* coordinator) {
|
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 == nullptr) {
|
fprintf(stderr,
|
"ERROR: Could not parse %s. Aborting.\n",
|
fqName.string().c_str());
|
|
return UNKNOWN_ERROR;
|
}
|
|
ast->getImportedPackages(&importedPackages);
|
}
|
|
out << "// FIXME: your file license if you have one\n\n";
|
out << "cc_library_shared {\n";
|
out.indent([&] {
|
out << "// FIXME: this should only be -impl for a passthrough hal.\n"
|
<< "// In most cases, to convert this to a binderized implementation, you should:\n"
|
<< "// - change '-impl' to '-service' here and make it a cc_binary instead of a\n"
|
<< "// cc_library_shared.\n"
|
<< "// - add a *.rc file for this module.\n"
|
<< "// - delete HIDL_FETCH_I* functions.\n"
|
<< "// - call configureRpcThreadpool and registerAsService on the instance.\n"
|
<< "// You may also want to append '-impl/-service' with a specific identifier like\n"
|
<< "// '-vendor' or '-<hardware identifier>' etc to distinguish it.\n";
|
out << "name: \"" << libraryName << "\",\n";
|
if (!coordinator->getOwner().empty()) {
|
out << "owner: \"" << coordinator->getOwner() << "\",\n";
|
}
|
out << "relative_install_path: \"hw\",\n";
|
if (coordinator->getOwner().empty()) {
|
out << "// FIXME: this should be 'vendor: true' for modules that will eventually be\n"
|
"// on AOSP.\n";
|
}
|
out << "proprietary: true,\n";
|
out << "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 Coordinator* coordinator,
|
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;
|
}
|
|
if (language == "java") {
|
bool isJavaCompatible;
|
status_t err = isPackageJavaCompatible(fqName, coordinator, &isJavaCompatible);
|
if (err != OK) return false;
|
|
if (!isJavaCompatible) {
|
fprintf(stderr,
|
"ERROR: %s is not Java compatible. The Java backend"
|
" does NOT support union types nor native handles. "
|
"In addition, vectors of arrays are limited to at most "
|
"one-dimensional arrays and vectors of {vectors,interfaces} are"
|
" not supported.\n",
|
fqName.string().c_str());
|
return false;
|
}
|
}
|
|
return true;
|
}
|
|
FileGenerator::GenerationFunction generateExportHeaderForPackage(bool forJava) {
|
return [forJava](Formatter& out, const FQName& packageFQName,
|
const Coordinator* coordinator) -> status_t {
|
CHECK(!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 == nullptr) {
|
fprintf(stderr,
|
"ERROR: Could not parse %s. Aborting.\n",
|
fqName.string().c_str());
|
|
return UNKNOWN_ERROR;
|
}
|
|
ast->appendToExportedTypesVector(&exportedTypes);
|
}
|
|
if (exportedTypes.empty()) {
|
return OK;
|
}
|
|
if (!out.isValid()) {
|
return UNKNOWN_ERROR;
|
}
|
|
std::string packagePath;
|
err = coordinator->getPackagePath(packageFQName, false /* relative */,
|
false /* sanitized */, &packagePath);
|
if (err != OK) return err;
|
|
out << "// This file is autogenerated by hidl-gen. Do not edit manually.\n"
|
<< "// Source: " << packageFQName.string() << "\n"
|
<< "// Location: " << packagePath << "\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(Formatter& out, const FQName& fqName,
|
const Coordinator* coordinator) {
|
CHECK(fqName.isFullyQualified());
|
|
AST* ast = coordinator->parse(fqName, {} /* parsed */,
|
Coordinator::Enforce::NO_HASH /* enforcement */);
|
|
if (ast == nullptr) {
|
fprintf(stderr, "ERROR: Could not parse %s. Aborting.\n", fqName.string().c_str());
|
|
return UNKNOWN_ERROR;
|
}
|
|
out << Hash::getHash(ast->getFilename()).hexString() << " " << fqName.string() << "\n";
|
|
return OK;
|
}
|
|
static status_t generateFunctionCount(Formatter& out, const FQName& fqName,
|
const Coordinator* coordinator) {
|
CHECK(fqName.isFullyQualified());
|
|
AST* ast = coordinator->parse(fqName, {} /* parsed */,
|
Coordinator::Enforce::NO_HASH /* enforcement */);
|
|
if (ast == nullptr) {
|
fprintf(stderr, "ERROR: Could not parse %s. Aborting.\n", fqName.string().c_str());
|
return UNKNOWN_ERROR;
|
}
|
|
const Interface* interface = ast->getInterface();
|
if (interface == nullptr) {
|
fprintf(stderr, "ERROR: Function count requires interface: %s.\n", fqName.string().c_str());
|
return UNKNOWN_ERROR;
|
}
|
|
// This is wrong for android.hidl.base@1.0::IBase, but in that case, it doesn't matter.
|
// This is just the number of APIs that are added.
|
out << fqName.string() << " " << interface->userDefinedMethods().size() << "\n";
|
|
return OK;
|
}
|
|
template <typename T>
|
std::vector<T> operator+(const std::vector<T>& lhs, const std::vector<T>& rhs) {
|
std::vector<T> ret;
|
ret.reserve(lhs.size() + rhs.size());
|
ret.insert(ret.begin(), lhs.begin(), lhs.end());
|
ret.insert(ret.end(), rhs.begin(), rhs.end());
|
return ret;
|
}
|
|
// clang-format off
|
static const std::vector<FileGenerator> kCppHeaderFormats = {
|
{
|
FileGenerator::alwaysGenerate,
|
[](const FQName& fqName) { return fqName.name() + ".h"; },
|
astGenerationFunction(&AST::generateInterfaceHeader),
|
},
|
{
|
FileGenerator::alwaysGenerate,
|
[](const FQName& fqName) {
|
return fqName.isInterfaceName() ? fqName.getInterfaceHwName() + ".h" : "hwtypes.h";
|
},
|
astGenerationFunction(&AST::generateHwBinderHeader),
|
},
|
{
|
FileGenerator::generateForInterfaces,
|
[](const FQName& fqName) { return fqName.getInterfaceStubName() + ".h"; },
|
astGenerationFunction(&AST::generateStubHeader),
|
},
|
{
|
FileGenerator::generateForInterfaces,
|
[](const FQName& fqName) { return fqName.getInterfaceProxyName() + ".h"; },
|
astGenerationFunction(&AST::generateProxyHeader),
|
},
|
{
|
FileGenerator::generateForInterfaces,
|
[](const FQName& fqName) { return fqName.getInterfacePassthroughName() + ".h"; },
|
astGenerationFunction(&AST::generatePassthroughHeader),
|
},
|
};
|
|
static const std::vector<FileGenerator> kCppSourceFormats = {
|
{
|
FileGenerator::alwaysGenerate,
|
[](const FQName& fqName) {
|
return fqName.isInterfaceName() ? fqName.getInterfaceBaseName() + "All.cpp" : "types.cpp";
|
},
|
astGenerationFunction(&AST::generateCppSource),
|
},
|
};
|
|
static const std::vector<FileGenerator> kCppImplHeaderFormats = {
|
{
|
FileGenerator::generateForInterfaces,
|
[](const FQName& fqName) { return fqName.getInterfaceBaseName() + ".h"; },
|
astGenerationFunction(&AST::generateCppImplHeader),
|
},
|
};
|
|
static const std::vector<FileGenerator> kCppImplSourceFormats = {
|
{
|
FileGenerator::generateForInterfaces,
|
[](const FQName& fqName) { return fqName.getInterfaceBaseName() + ".cpp"; },
|
astGenerationFunction(&AST::generateCppImplSource),
|
},
|
};
|
|
static const std::vector<FileGenerator> kCppAdapterHeaderFormats = {
|
{
|
FileGenerator::alwaysGenerate,
|
[](const FQName& fqName) {
|
return fqName.isInterfaceName() ? fqName.getInterfaceAdapterName() + ".h" : "Atypes.h";
|
},
|
astGenerationFunction(&AST::generateCppAdapterHeader),
|
},
|
};
|
|
static const std::vector<FileGenerator> kCppAdapterSourceFormats = {
|
{
|
FileGenerator::alwaysGenerate,
|
[](const FQName& fqName) {
|
return fqName.isInterfaceName() ? fqName.getInterfaceAdapterName() + ".cpp" : "Atypes.cpp";
|
},
|
astGenerationFunction(&AST::generateCppAdapterSource),
|
},
|
};
|
|
static const std::vector<OutputHandler> kFormats = {
|
{
|
"check",
|
"Parses the interface to see if valid but doesn't write any files.",
|
OutputMode::NOT_NEEDED,
|
Coordinator::Location::STANDARD_OUT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
{
|
{
|
FileGenerator::alwaysGenerate,
|
nullptr /* filename for fqname */,
|
astGenerationFunction(),
|
},
|
},
|
},
|
{
|
"c++",
|
"(internal) (deprecated) Generates C++ interface files for talking to HIDL interfaces.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::GEN_OUTPUT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
kCppHeaderFormats + kCppSourceFormats,
|
},
|
{
|
"c++-headers",
|
"(internal) Generates C++ headers for interface files for talking to HIDL interfaces.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::GEN_OUTPUT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
kCppHeaderFormats,
|
},
|
{
|
"c++-sources",
|
"(internal) Generates C++ sources for interface files for talking to HIDL interfaces.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::GEN_OUTPUT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
kCppSourceFormats,
|
},
|
{
|
"export-header",
|
"Generates a header file from @export enumerations to help maintain legacy code.",
|
OutputMode::NEEDS_FILE,
|
Coordinator::Location::DIRECT,
|
GenerationGranularity::PER_PACKAGE,
|
validateIsPackage,
|
{singleFileGenerator("", generateExportHeaderForPackage(false /* forJava */))}
|
},
|
{
|
"c++-impl",
|
"Generates boilerplate implementation of a hidl interface in C++ (for convenience).",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::DIRECT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
kCppImplHeaderFormats + kCppImplSourceFormats,
|
},
|
{
|
"c++-impl-headers",
|
"c++-impl but headers only.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::DIRECT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
kCppImplHeaderFormats,
|
},
|
{
|
"c++-impl-sources",
|
"c++-impl but sources only.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::DIRECT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
kCppImplSourceFormats,
|
},
|
{
|
"c++-adapter",
|
"Takes a x.(y+n) interface and mocks an x.y interface.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::GEN_OUTPUT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
kCppAdapterHeaderFormats + kCppAdapterSourceFormats,
|
},
|
{
|
"c++-adapter-headers",
|
"c++-adapter but helper headers only.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::GEN_OUTPUT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
kCppAdapterHeaderFormats,
|
},
|
{
|
"c++-adapter-sources",
|
"c++-adapter but helper sources only.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::GEN_OUTPUT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
kCppAdapterSourceFormats,
|
},
|
{
|
"c++-adapter-main",
|
"c++-adapter but the adapter binary source only.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::DIRECT,
|
GenerationGranularity::PER_PACKAGE,
|
validateIsPackage,
|
{singleFileGenerator("main.cpp", generateAdapterMainSource)},
|
},
|
{
|
"java",
|
"(internal) Generates Java library for talking to HIDL interfaces in Java.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::GEN_SANITIZED,
|
GenerationGranularity::PER_TYPE,
|
validateForSource,
|
{
|
{
|
FileGenerator::alwaysGenerate,
|
[](const FQName& fqName) {
|
return StringHelper::LTrim(fqName.name(), "types.") + ".java";
|
},
|
generateJavaForPackage,
|
},
|
}
|
},
|
{
|
"java-constants",
|
"(internal) Like export-header but for Java (always created by -Lmakefile if @export exists).",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::GEN_SANITIZED,
|
GenerationGranularity::PER_PACKAGE,
|
validateIsPackage,
|
{singleFileGenerator("Constants.java", generateExportHeaderForPackage(true /* forJava */))}
|
},
|
{
|
"vts",
|
"(internal) Generates vts proto files for use in vtsd.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::GEN_OUTPUT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
{
|
{
|
FileGenerator::alwaysGenerate,
|
[](const FQName& fqName) {
|
return fqName.isInterfaceName() ? fqName.getInterfaceBaseName() + ".vts" : "types.vts";
|
},
|
astGenerationFunction(&AST::generateVts),
|
},
|
}
|
},
|
{
|
"makefile",
|
"(removed) Used to generate makefiles for -Ljava and -Ljava-constants.",
|
OutputMode::NEEDS_SRC,
|
Coordinator::Location::PACKAGE_ROOT,
|
GenerationGranularity::PER_PACKAGE,
|
[](const FQName &, const Coordinator*, const std::string &) {
|
fprintf(stderr, "ERROR: makefile output is not supported. Use -Landroidbp for all build file generation.\n");
|
return false;
|
},
|
{},
|
},
|
{
|
"androidbp",
|
"(internal) Generates Soong bp files for -Lc++-headers, -Lc++-sources, -Ljava, -Ljava-constants, and -Lc++-adapter.",
|
OutputMode::NEEDS_SRC,
|
Coordinator::Location::PACKAGE_ROOT,
|
GenerationGranularity::PER_PACKAGE,
|
validateIsPackage,
|
{singleFileGenerator("Android.bp", generateAndroidBpForPackage)},
|
},
|
{
|
"androidbp-impl",
|
"Generates boilerplate bp files for implementation created with -Lc++-impl.",
|
OutputMode::NEEDS_DIR,
|
Coordinator::Location::DIRECT,
|
GenerationGranularity::PER_PACKAGE,
|
validateIsPackage,
|
{singleFileGenerator("Android.bp", generateAndroidBpImplForPackage)},
|
},
|
{
|
"hash",
|
"Prints hashes of interface in `current.txt` format to standard out.",
|
OutputMode::NOT_NEEDED,
|
Coordinator::Location::STANDARD_OUT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
{
|
{
|
FileGenerator::alwaysGenerate,
|
nullptr /* file name for fqName */,
|
generateHashOutput,
|
},
|
}
|
},
|
{
|
"function-count",
|
"Prints the total number of functions added by the package or interface.",
|
OutputMode::NOT_NEEDED,
|
Coordinator::Location::STANDARD_OUT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
{
|
{
|
FileGenerator::generateForInterfaces,
|
nullptr /* file name for fqName */,
|
generateFunctionCount,
|
},
|
}
|
},
|
{
|
"dependencies",
|
"Prints all depended types.",
|
OutputMode::NOT_NEEDED,
|
Coordinator::Location::STANDARD_OUT,
|
GenerationGranularity::PER_FILE,
|
validateForSource,
|
{
|
{
|
FileGenerator::alwaysGenerate,
|
nullptr /* file name for fqName */,
|
astGenerationFunction(&AST::generateDependencies),
|
},
|
},
|
},
|
};
|
// clang-format on
|
|
static void usage(const char *me) {
|
fprintf(stderr,
|
"usage: %s [-p <root path>] -o <output path> -L <language> [-O <owner>] (-r <interface "
|
"root>)+ [-R] [-v] [-d <depfile>] FQNAME...\n\n",
|
me);
|
|
fprintf(stderr,
|
"Process FQNAME, PACKAGE(.SUBPACKAGE)*@[0-9]+.[0-9]+(::TYPE)?, to create output.\n\n");
|
|
fprintf(stderr, " -h: Prints this menu.\n");
|
fprintf(stderr, " -L <language>: The following options are available:\n");
|
for (auto& e : kFormats) {
|
fprintf(stderr, " %-16s: %s\n", e.name().c_str(), e.description().c_str());
|
}
|
fprintf(stderr, " -O <owner>: The owner of the module for -Landroidbp(-impl)?.\n");
|
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: Do not add default package roots if not specified in -r.\n");
|
fprintf(stderr, " -r <package:path root>: E.g., android.hardware:hardware/interfaces.\n");
|
fprintf(stderr, " -v: verbose output.\n");
|
fprintf(stderr, " -d <depfile>: location of depfile to write to.\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) {
|
const char *me = argv[0];
|
if (argc == 1) {
|
usage(me);
|
exit(1);
|
}
|
|
const OutputHandler* outputFormat = nullptr;
|
Coordinator coordinator;
|
std::string outputPath;
|
bool suppressDefaultPackagePaths = false;
|
|
int res;
|
while ((res = getopt(argc, argv, "hp:o:O:r:L:vd:R")) >= 0) {
|
switch (res) {
|
case 'p': {
|
if (!coordinator.getRootPath().empty()) {
|
fprintf(stderr, "ERROR: -p <root path> can only be specified once.\n");
|
exit(1);
|
}
|
coordinator.setRootPath(optarg);
|
break;
|
}
|
|
case 'v': {
|
coordinator.setVerbose(true);
|
break;
|
}
|
|
case 'd': {
|
coordinator.setDepFile(optarg);
|
break;
|
}
|
|
case 'o': {
|
if (!outputPath.empty()) {
|
fprintf(stderr, "ERROR: -o <output path> can only be specified once.\n");
|
exit(1);
|
}
|
outputPath = optarg;
|
break;
|
}
|
|
case 'O': {
|
if (!coordinator.getOwner().empty()) {
|
fprintf(stderr, "ERROR: -O <owner> can only be specified once.\n");
|
exit(1);
|
}
|
coordinator.setOwner(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 root = val.substr(0, index);
|
auto path = val.substr(index + 1);
|
|
std::string error;
|
status_t err = coordinator.addPackagePath(root, path, &error);
|
if (err != OK) {
|
fprintf(stderr, "%s\n", error.c_str());
|
exit(1);
|
}
|
|
break;
|
}
|
|
case 'R': {
|
suppressDefaultPackagePaths = true;
|
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 : kFormats) {
|
if (e.name() == optarg) {
|
outputFormat = &e;
|
break;
|
}
|
}
|
if (outputFormat == nullptr) {
|
fprintf(stderr,
|
"ERROR: unrecognized -L option: \"%s\".\n",
|
optarg);
|
exit(1);
|
}
|
break;
|
}
|
|
case '?':
|
case 'h':
|
default: {
|
usage(me);
|
exit(1);
|
break;
|
}
|
}
|
}
|
|
if (coordinator.getRootPath().empty()) {
|
const char* ANDROID_BUILD_TOP = getenv("ANDROID_BUILD_TOP");
|
if (ANDROID_BUILD_TOP != nullptr) {
|
coordinator.setRootPath(ANDROID_BUILD_TOP);
|
}
|
}
|
|
if (outputFormat == nullptr) {
|
fprintf(stderr,
|
"ERROR: no -L option provided.\n");
|
exit(1);
|
}
|
|
argc -= optind;
|
argv += optind;
|
|
if (argc == 0) {
|
fprintf(stderr, "ERROR: no fqname specified.\n");
|
usage(me);
|
exit(1);
|
}
|
|
// Valid options are now in argv[0] .. argv[argc - 1].
|
|
switch (outputFormat->mOutputMode) {
|
case OutputMode::NEEDS_DIR:
|
case OutputMode::NEEDS_FILE: {
|
if (outputPath.empty()) {
|
usage(me);
|
exit(1);
|
}
|
|
if (outputFormat->mOutputMode == OutputMode::NEEDS_DIR) {
|
if (outputPath.back() != '/') {
|
outputPath += "/";
|
}
|
}
|
break;
|
}
|
case OutputMode::NEEDS_SRC: {
|
if (outputPath.empty()) {
|
outputPath = coordinator.getRootPath();
|
}
|
if (outputPath.back() != '/') {
|
outputPath += "/";
|
}
|
|
break;
|
}
|
|
default:
|
outputPath.clear(); // Unused.
|
break;
|
}
|
|
coordinator.setOutputPath(outputPath);
|
|
if (!suppressDefaultPackagePaths) {
|
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) {
|
const char* arg = argv[i];
|
|
FQName fqName;
|
if (!FQName::parse(arg, &fqName)) {
|
fprintf(stderr, "ERROR: Invalid fully-qualified name as argument: %s.\n", arg);
|
exit(1);
|
}
|
|
if (coordinator.getPackageInterfaceFiles(fqName, nullptr /*fileNames*/) != OK) {
|
fprintf(stderr, "ERROR: Could not get sources for %s.\n", arg);
|
exit(1);
|
}
|
|
// Dump extra verbose output
|
if (coordinator.isVerbose()) {
|
status_t err =
|
dumpDefinedButUnreferencedTypeNames(fqName.getPackageAndVersion(), &coordinator);
|
if (err != OK) return err;
|
}
|
|
if (!outputFormat->validate(fqName, &coordinator, outputFormat->name())) {
|
fprintf(stderr,
|
"ERROR: output handler failed.\n");
|
exit(1);
|
}
|
|
status_t err = outputFormat->generate(fqName, &coordinator);
|
if (err != OK) exit(1);
|
|
err = outputFormat->writeDepFile(fqName, &coordinator);
|
if (err != OK) exit(1);
|
}
|
|
return 0;
|
}
|
