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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Header file of an in-memory representation of DEX files.
*/
#include <stdint.h>
#include <vector>
#include "dex_ir_builder.h"
namespace art {
namespace dex_ir {
Header* DexIrBuilder(const DexFile& dex_file) {
const DexFile::Header& disk_header = dex_file.GetHeader();
Header* header = new Header(disk_header.magic_,
disk_header.checksum_,
disk_header.signature_,
disk_header.endian_tag_,
disk_header.file_size_,
disk_header.header_size_,
disk_header.link_size_,
disk_header.link_off_,
disk_header.data_size_,
disk_header.data_off_);
Collections& collections = header->GetCollections();
// Walk the rest of the header fields.
// StringId table.
collections.SetStringIdsOffset(disk_header.string_ids_off_);
for (uint32_t i = 0; i < dex_file.NumStringIds(); ++i) {
collections.CreateStringId(dex_file, i);
}
// TypeId table.
collections.SetTypeIdsOffset(disk_header.type_ids_off_);
for (uint32_t i = 0; i < dex_file.NumTypeIds(); ++i) {
collections.CreateTypeId(dex_file, i);
}
// ProtoId table.
collections.SetProtoIdsOffset(disk_header.proto_ids_off_);
for (uint32_t i = 0; i < dex_file.NumProtoIds(); ++i) {
collections.CreateProtoId(dex_file, i);
}
// FieldId table.
collections.SetFieldIdsOffset(disk_header.field_ids_off_);
for (uint32_t i = 0; i < dex_file.NumFieldIds(); ++i) {
collections.CreateFieldId(dex_file, i);
}
// MethodId table.
collections.SetMethodIdsOffset(disk_header.method_ids_off_);
for (uint32_t i = 0; i < dex_file.NumMethodIds(); ++i) {
collections.CreateMethodId(dex_file, i);
}
// ClassDef table.
collections.SetClassDefsOffset(disk_header.class_defs_off_);
for (uint32_t i = 0; i < dex_file.NumClassDefs(); ++i) {
collections.CreateClassDef(dex_file, i);
}
return header;
}
} // namespace dex_ir
} // namespace art
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