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/*
* Copyright (C) 2011 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.
*/
#ifndef ART_RUNTIME_OAT_H_
#define ART_RUNTIME_OAT_H_
#include <vector>
#include "base/macros.h"
#include "dex_file.h"
#include "instruction_set.h"
namespace art {
class PACKED(4) OatHeader {
public:
static const uint8_t kOatMagic[4];
static const uint8_t kOatVersion[4];
OatHeader();
OatHeader(InstructionSet instruction_set,
const InstructionSetFeatures& instruction_set_features,
const std::vector<const DexFile*>* dex_files,
uint32_t image_file_location_oat_checksum,
uint32_t image_file_location_oat_data_begin,
const std::string& image_file_location);
bool IsValid() const;
const char* GetMagic() const;
uint32_t GetChecksum() const;
void UpdateChecksum(const void* data, size_t length);
uint32_t GetDexFileCount() const {
DCHECK(IsValid());
return dex_file_count_;
}
uint32_t GetExecutableOffset() const;
void SetExecutableOffset(uint32_t executable_offset);
const void* GetInterpreterToInterpreterBridge() const;
uint32_t GetInterpreterToInterpreterBridgeOffset() const;
void SetInterpreterToInterpreterBridgeOffset(uint32_t offset);
const void* GetInterpreterToCompiledCodeBridge() const;
uint32_t GetInterpreterToCompiledCodeBridgeOffset() const;
void SetInterpreterToCompiledCodeBridgeOffset(uint32_t offset);
const void* GetJniDlsymLookup() const;
uint32_t GetJniDlsymLookupOffset() const;
void SetJniDlsymLookupOffset(uint32_t offset);
const void* GetPortableResolutionTrampoline() const;
uint32_t GetPortableResolutionTrampolineOffset() const;
void SetPortableResolutionTrampolineOffset(uint32_t offset);
const void* GetPortableImtConflictTrampoline() const;
uint32_t GetPortableImtConflictTrampolineOffset() const;
void SetPortableImtConflictTrampolineOffset(uint32_t offset);
const void* GetPortableToInterpreterBridge() const;
uint32_t GetPortableToInterpreterBridgeOffset() const;
void SetPortableToInterpreterBridgeOffset(uint32_t offset);
const void* GetQuickGenericJniTrampoline() const;
uint32_t GetQuickGenericJniTrampolineOffset() const;
void SetQuickGenericJniTrampolineOffset(uint32_t offset);
const void* GetQuickResolutionTrampoline() const;
uint32_t GetQuickResolutionTrampolineOffset() const;
void SetQuickResolutionTrampolineOffset(uint32_t offset);
const void* GetQuickImtConflictTrampoline() const;
uint32_t GetQuickImtConflictTrampolineOffset() const;
void SetQuickImtConflictTrampolineOffset(uint32_t offset);
const void* GetQuickToInterpreterBridge() const;
uint32_t GetQuickToInterpreterBridgeOffset() const;
void SetQuickToInterpreterBridgeOffset(uint32_t offset);
InstructionSet GetInstructionSet() const;
const InstructionSetFeatures& GetInstructionSetFeatures() const;
uint32_t GetImageFileLocationOatChecksum() const;
uint32_t GetImageFileLocationOatDataBegin() const;
uint32_t GetImageFileLocationSize() const;
const uint8_t* GetImageFileLocationData() const;
std::string GetImageFileLocation() const;
private:
uint8_t magic_[4];
uint8_t version_[4];
uint32_t adler32_checksum_;
InstructionSet instruction_set_;
InstructionSetFeatures instruction_set_features_;
uint32_t dex_file_count_;
uint32_t executable_offset_;
uint32_t interpreter_to_interpreter_bridge_offset_;
uint32_t interpreter_to_compiled_code_bridge_offset_;
uint32_t jni_dlsym_lookup_offset_;
uint32_t portable_imt_conflict_trampoline_offset_;
uint32_t portable_resolution_trampoline_offset_;
uint32_t portable_to_interpreter_bridge_offset_;
uint32_t quick_generic_jni_trampoline_offset_;
uint32_t quick_imt_conflict_trampoline_offset_;
uint32_t quick_resolution_trampoline_offset_;
uint32_t quick_to_interpreter_bridge_offset_;
uint32_t image_file_location_oat_checksum_;
uint32_t image_file_location_oat_data_begin_;
uint32_t image_file_location_size_;
uint8_t image_file_location_data_[0]; // note variable width data at end
DISALLOW_COPY_AND_ASSIGN(OatHeader);
};
// OatMethodOffsets are currently 5x32-bits=160-bits long, so if we can
// save even one OatMethodOffsets struct, the more complicated encoding
// using a bitmap pays for itself since few classes will have 160
// methods.
enum OatClassType {
kOatClassAllCompiled = 0, // OatClass is followed by an OatMethodOffsets for each method.
kOatClassSomeCompiled = 1, // A bitmap of which OatMethodOffsets are present follows the OatClass.
kOatClassNoneCompiled = 2, // All methods are interpretted so no OatMethodOffsets are necessary.
kOatClassMax = 3,
};
std::ostream& operator<<(std::ostream& os, const OatClassType& rhs);
class PACKED(4) OatMethodOffsets {
public:
OatMethodOffsets();
OatMethodOffsets(uint32_t code_offset,
uint32_t frame_size_in_bytes,
uint32_t core_spill_mask,
uint32_t fp_spill_mask,
uint32_t gc_map_offset);
~OatMethodOffsets();
uint32_t code_offset_;
uint32_t frame_size_in_bytes_;
uint32_t core_spill_mask_;
uint32_t fp_spill_mask_;
uint32_t gc_map_offset_;
};
// OatMethodHeader precedes the raw code chunk generated by the Quick compiler.
class PACKED(4) OatMethodHeader {
public:
OatMethodHeader();
explicit OatMethodHeader(uint32_t mapping_table_offset, uint32_t vmap_table_offset,
uint32_t code_size);
~OatMethodHeader();
// The offset in bytes from the start of the mapping table to the end of the header.
uint32_t mapping_table_offset_;
// The offset in bytes from the start of the vmap table to the end of the header.
uint32_t vmap_table_offset_;
// The code size in bytes.
uint32_t code_size_;
};
} // namespace art
#endif // ART_RUNTIME_OAT_H_