| /* |
| * 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 "arch/instruction_set.h" |
| #include "base/macros.h" |
| #include "dex_file.h" |
| #include "quick/quick_method_frame_info.h" |
| #include "safe_map.h" |
| |
| namespace art { |
| |
| class InstructionSetFeatures; |
| |
| class PACKED(4) OatHeader { |
| public: |
| static constexpr uint8_t kOatMagic[] = { 'o', 'a', 't', '\n' }; |
| static constexpr uint8_t kOatVersion[] = { '0', '5', '6', '\0' }; |
| |
| static constexpr const char* kImageLocationKey = "image-location"; |
| static constexpr const char* kDex2OatCmdLineKey = "dex2oat-cmdline"; |
| static constexpr const char* kDex2OatHostKey = "dex2oat-host"; |
| static constexpr const char* kPicKey = "pic"; |
| |
| static OatHeader* Create(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 SafeMap<std::string, std::string>* variable_data); |
| |
| bool IsValid() const; |
| std::string GetValidationErrorMessage() 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* 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); |
| |
| int32_t GetImagePatchDelta() const; |
| void RelocateOat(off_t delta); |
| void SetImagePatchDelta(int32_t off); |
| |
| InstructionSet GetInstructionSet() const; |
| uint32_t GetInstructionSetFeaturesBitmap() const; |
| uint32_t GetImageFileLocationOatChecksum() const; |
| uint32_t GetImageFileLocationOatDataBegin() const; |
| |
| uint32_t GetKeyValueStoreSize() const; |
| const uint8_t* GetKeyValueStore() const; |
| const char* GetStoreValueByKey(const char* key) const; |
| bool GetStoreKeyValuePairByIndex(size_t index, const char** key, const char** value) const; |
| |
| size_t GetHeaderSize() const; |
| bool IsPic() const; |
| |
| private: |
| 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 SafeMap<std::string, std::string>* variable_data); |
| |
| void Flatten(const SafeMap<std::string, std::string>* variable_data); |
| |
| uint8_t magic_[4]; |
| uint8_t version_[4]; |
| uint32_t adler32_checksum_; |
| |
| InstructionSet instruction_set_; |
| uint32_t instruction_set_features_bitmap_; |
| 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 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_; |
| |
| // The amount that the image this oat is associated with has been patched. |
| int32_t image_patch_delta_; |
| |
| uint32_t image_file_location_oat_checksum_; |
| uint32_t image_file_location_oat_data_begin_; |
| |
| uint32_t key_value_store_size_; |
| uint8_t key_value_store_[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 interpreted so no OatMethodOffsets are necessary. |
| kOatClassMax = 3, |
| }; |
| |
| std::ostream& operator<<(std::ostream& os, const OatClassType& rhs); |
| |
| class PACKED(4) OatMethodOffsets { |
| public: |
| OatMethodOffsets(uint32_t code_offset = 0); |
| |
| ~OatMethodOffsets(); |
| |
| uint32_t code_offset_; |
| }; |
| |
| // OatQuickMethodHeader precedes the raw code chunk generated by the Quick compiler. |
| class PACKED(4) OatQuickMethodHeader { |
| public: |
| OatQuickMethodHeader(uint32_t mapping_table_offset = 0U, uint32_t vmap_table_offset = 0U, |
| uint32_t gc_map_offset = 0U, uint32_t frame_size_in_bytes = 0U, |
| uint32_t core_spill_mask = 0U, uint32_t fp_spill_mask = 0U, |
| uint32_t code_size = 0U); |
| |
| ~OatQuickMethodHeader(); |
| |
| // 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 offset in bytes from the start of the gc map to the end of the header. |
| uint32_t gc_map_offset_; |
| // The stack frame information. |
| QuickMethodFrameInfo frame_info_; |
| // The code size in bytes. |
| uint32_t code_size_; |
| }; |
| |
| } // namespace art |
| |
| #endif // ART_RUNTIME_OAT_H_ |