64587af817
Android static libraries are like APKs but they contain much more debugging and source information. We need to treat them differently in 3 ways: 1) When building a static library, we skip things like ID assignment and product/config stripping. Source information is emitted as well. 2) When building a static library and linking against another static library, we don't want to merge, we want to simply reference. 3) When building an app that uses static libraries, we want to merge the static library under the same package with or without mangling. Bug:25958912 Change-Id: I425e032857936a3e83173c1edc2a6cdc6020b842
276 lines
9.3 KiB
C++
276 lines
9.3 KiB
C++
/*
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* Copyright (C) 2015 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 "ConfigDescription.h"
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#include "Resource.h"
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#include "ValueVisitor.h"
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#include "process/SymbolTable.h"
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#include "util/Util.h"
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#include <androidfw/AssetManager.h>
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#include <androidfw/ResourceTypes.h>
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namespace aapt {
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void SymbolTable::appendSource(std::unique_ptr<ISymbolSource> source) {
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mSources.push_back(std::move(source));
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// We do not clear the cache, because sources earlier in the list take precedent.
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}
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void SymbolTable::prependSource(std::unique_ptr<ISymbolSource> source) {
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mSources.insert(mSources.begin(), std::move(source));
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// We must clear the cache in case we did a lookup before adding this resource.
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mCache.clear();
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}
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const SymbolTable::Symbol* SymbolTable::findByName(const ResourceName& name) {
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if (const std::shared_ptr<Symbol>& s = mCache.get(name)) {
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return s.get();
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}
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// We did not find it in the cache, so look through the sources.
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for (auto& symbolSource : mSources) {
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std::unique_ptr<Symbol> symbol = symbolSource->findByName(name);
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if (symbol) {
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// Take ownership of the symbol into a shared_ptr. We do this because LruCache
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// doesn't support unique_ptr.
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std::shared_ptr<Symbol> sharedSymbol = std::shared_ptr<Symbol>(symbol.release());
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mCache.put(name, sharedSymbol);
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return sharedSymbol.get();
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}
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}
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return nullptr;
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}
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const SymbolTable::Symbol* SymbolTable::findById(ResourceId id) {
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if (const std::shared_ptr<Symbol>& s = mIdCache.get(id)) {
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return s.get();
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}
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// We did not find it in the cache, so look through the sources.
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for (auto& symbolSource : mSources) {
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std::unique_ptr<Symbol> symbol = symbolSource->findById(id);
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if (symbol) {
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// Take ownership of the symbol into a shared_ptr. We do this because LruCache
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// doesn't support unique_ptr.
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std::shared_ptr<Symbol> sharedSymbol = std::shared_ptr<Symbol>(symbol.release());
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mIdCache.put(id, sharedSymbol);
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return sharedSymbol.get();
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}
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}
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return nullptr;
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}
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std::unique_ptr<SymbolTable::Symbol> ResourceTableSymbolSource::findByName(
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const ResourceName& name) {
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Maybe<ResourceTable::SearchResult> result = mTable->findResource(name);
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if (!result) {
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if (name.type == ResourceType::kAttr) {
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// Recurse and try looking up a private attribute.
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return findByName(ResourceName(name.package, ResourceType::kAttrPrivate, name.entry));
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}
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return {};
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}
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ResourceTable::SearchResult sr = result.value();
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std::unique_ptr<SymbolTable::Symbol> symbol = util::make_unique<SymbolTable::Symbol>();
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symbol->isPublic = (sr.entry->symbolStatus.state == SymbolState::kPublic);
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if (sr.package->id && sr.type->id && sr.entry->id) {
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symbol->id = ResourceId(sr.package->id.value(), sr.type->id.value(), sr.entry->id.value());
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}
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if (name.type == ResourceType::kAttr || name.type == ResourceType::kAttrPrivate) {
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const ConfigDescription kDefaultConfig;
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ResourceConfigValue* configValue = sr.entry->findValue(kDefaultConfig);
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if (configValue) {
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// This resource has an Attribute.
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if (Attribute* attr = valueCast<Attribute>(configValue->value.get())) {
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symbol->attribute = util::make_unique<Attribute>(*attr);
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} else {
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return {};
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}
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}
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}
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return symbol;
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}
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bool AssetManagerSymbolSource::addAssetPath(const StringPiece& path) {
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int32_t cookie = 0;
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return mAssets.addAssetPath(android::String8(path.data(), path.size()), &cookie);
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}
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static std::unique_ptr<SymbolTable::Symbol> lookupAttributeInTable(const android::ResTable& table,
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ResourceId id) {
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// Try as a bag.
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const android::ResTable::bag_entry* entry;
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ssize_t count = table.lockBag(id.id, &entry);
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if (count < 0) {
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table.unlockBag(entry);
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return nullptr;
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}
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// We found a resource.
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std::unique_ptr<SymbolTable::Symbol> s = util::make_unique<SymbolTable::Symbol>();
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s->id = id;
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// Check to see if it is an attribute.
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for (size_t i = 0; i < (size_t) count; i++) {
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if (entry[i].map.name.ident == android::ResTable_map::ATTR_TYPE) {
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s->attribute = util::make_unique<Attribute>(false);
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s->attribute->typeMask = entry[i].map.value.data;
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break;
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}
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}
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if (s->attribute) {
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for (size_t i = 0; i < (size_t) count; i++) {
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const android::ResTable_map& mapEntry = entry[i].map;
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if (Res_INTERNALID(mapEntry.name.ident)) {
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switch (mapEntry.name.ident) {
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case android::ResTable_map::ATTR_MIN:
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s->attribute->minInt = static_cast<int32_t>(mapEntry.value.data);
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break;
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case android::ResTable_map::ATTR_MAX:
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s->attribute->maxInt = static_cast<int32_t>(mapEntry.value.data);
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break;
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}
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continue;
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}
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android::ResTable::resource_name entryName;
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if (!table.getResourceName(mapEntry.name.ident, false, &entryName)) {
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table.unlockBag(entry);
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return nullptr;
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}
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const ResourceType* parsedType = parseResourceType(
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StringPiece16(entryName.type, entryName.typeLen));
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if (!parsedType) {
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table.unlockBag(entry);
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return nullptr;
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}
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Attribute::Symbol symbol;
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symbol.symbol.name = ResourceName(
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StringPiece16(entryName.package, entryName.packageLen),
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*parsedType,
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StringPiece16(entryName.name, entryName.nameLen));
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symbol.symbol.id = ResourceId(mapEntry.name.ident);
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symbol.value = mapEntry.value.data;
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s->attribute->symbols.push_back(std::move(symbol));
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}
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}
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table.unlockBag(entry);
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return s;
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}
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std::unique_ptr<SymbolTable::Symbol> AssetManagerSymbolSource::findByName(
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const ResourceName& name) {
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const android::ResTable& table = mAssets.getResources(false);
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StringPiece16 typeStr = toString(name.type);
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uint32_t typeSpecFlags = 0;
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ResourceId resId = table.identifierForName(name.entry.data(), name.entry.size(),
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typeStr.data(), typeStr.size(),
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name.package.data(), name.package.size(),
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&typeSpecFlags);
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if (!resId.isValid()) {
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return {};
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}
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std::unique_ptr<SymbolTable::Symbol> s;
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if (name.type == ResourceType::kAttr) {
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s = lookupAttributeInTable(table, resId);
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} else {
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s = util::make_unique<SymbolTable::Symbol>();
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s->id = resId;
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}
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if (s) {
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s->isPublic = (typeSpecFlags & android::ResTable_typeSpec::SPEC_PUBLIC) != 0;
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return s;
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}
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return {};
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}
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static Maybe<ResourceName> getResourceName(const android::ResTable& table, ResourceId id) {
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android::ResTable::resource_name resName = {};
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if (!table.getResourceName(id.id, true, &resName)) {
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return {};
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}
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ResourceName name;
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if (resName.package) {
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name.package = StringPiece16(resName.package, resName.packageLen).toString();
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}
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const ResourceType* type;
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if (resName.type) {
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type = parseResourceType(StringPiece16(resName.type, resName.typeLen));
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} else if (resName.type8) {
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type = parseResourceType(util::utf8ToUtf16(StringPiece(resName.type8, resName.typeLen)));
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} else {
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return {};
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}
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if (!type) {
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return {};
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}
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name.type = *type;
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if (resName.name) {
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name.entry = StringPiece16(resName.name, resName.nameLen).toString();
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} else if (resName.name8) {
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name.entry = util::utf8ToUtf16(StringPiece(resName.name8, resName.nameLen));
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} else {
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return {};
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}
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return name;
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}
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std::unique_ptr<SymbolTable::Symbol> AssetManagerSymbolSource::findById(ResourceId id) {
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const android::ResTable& table = mAssets.getResources(false);
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Maybe<ResourceName> maybeName = getResourceName(table, id);
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if (!maybeName) {
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return {};
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}
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uint32_t typeSpecFlags = 0;
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table.getResourceFlags(id.id, &typeSpecFlags);
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std::unique_ptr<SymbolTable::Symbol> s;
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if (maybeName.value().type == ResourceType::kAttr) {
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s = lookupAttributeInTable(table, id);
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} else {
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s = util::make_unique<SymbolTable::Symbol>();
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s->id = id;
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}
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if (s) {
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s->isPublic = (typeSpecFlags & android::ResTable_typeSpec::SPEC_PUBLIC) != 0;
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return s;
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}
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return {};
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}
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} // namespace aapt
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