Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame^] | 1 | // Copyright 2011 Google Inc. All Rights Reserved. |
| 2 | |
| 3 | #ifndef ART_SRC_OAT_FILE_H_ |
| 4 | #define ART_SRC_OAT_FILE_H_ |
| 5 | |
| 6 | #include <vector> |
| 7 | |
| 8 | #include "dex_file.h" |
| 9 | #include "mem_map.h" |
| 10 | #include "oat.h" |
| 11 | |
| 12 | namespace art { |
| 13 | |
| 14 | class OatFile { |
| 15 | public: |
| 16 | |
| 17 | // Open an oat file. Returns NULL on failure. Requested base can |
| 18 | // optionally be used to request where the file should be loaded. |
| 19 | static OatFile* Open(const std::string& filename, |
| 20 | const std::string& strip_location_prefix, |
| 21 | byte* requested_base); |
| 22 | |
| 23 | ~OatFile(); |
| 24 | |
| 25 | const std::string& GetLocation() const { |
| 26 | return location_; |
| 27 | } |
| 28 | |
| 29 | const OatHeader& GetOatHeader() const; |
| 30 | |
| 31 | class OatDexFile; |
| 32 | |
| 33 | class OatClass { |
| 34 | public: |
| 35 | // get the code for the method based on its index into the class |
| 36 | // defintion. direct methods come first, followed by virtual |
| 37 | // methods. note that runtime created methods such as miranda |
| 38 | // methods are not included. |
| 39 | const void* GetMethodCode(uint32_t method_index) const; |
| 40 | ~OatClass(); |
| 41 | |
| 42 | private: |
| 43 | OatClass(const OatFile* oat_file, const uint32_t* methods_pointer); |
| 44 | |
| 45 | const OatFile* oat_file_; |
| 46 | const uint32_t* methods_pointer_; |
| 47 | |
| 48 | friend class OatDexFile; |
| 49 | }; |
| 50 | |
| 51 | class OatDexFile { |
| 52 | public: |
| 53 | const OatClass GetOatClass(uint32_t class_def_index) const; |
| 54 | ~OatDexFile(); |
| 55 | private: |
| 56 | OatDexFile(const OatFile* oat_file, |
| 57 | std::string dex_file_location, |
| 58 | uint32_t dex_file_checksum, |
| 59 | uint32_t* classes_pointer); |
| 60 | |
| 61 | const OatFile* oat_file_; |
| 62 | std::string dex_file_location_; |
| 63 | uint32_t dex_file_checksum_; |
| 64 | const uint32_t* classes_pointer_; |
| 65 | |
| 66 | friend class OatFile; |
| 67 | DISALLOW_COPY_AND_ASSIGN(OatDexFile); |
| 68 | }; |
| 69 | |
| 70 | const OatDexFile& GetOatDexFile(const DexFile& dex_file); |
| 71 | |
| 72 | size_t GetSize() const { |
| 73 | return GetLimit() - GetBase(); |
| 74 | } |
| 75 | |
| 76 | private: |
| 77 | OatFile(const std::string& filename); |
| 78 | bool Read(const std::string& filename, byte* requested_base); |
| 79 | |
| 80 | const byte* GetBase() const; |
| 81 | const byte* GetLimit() const; |
| 82 | |
| 83 | // The oat file name. |
| 84 | // |
| 85 | // The image will embed this to link its associated oat file. |
| 86 | const std::string location_; |
| 87 | |
| 88 | // backing memory map for oat file |
| 89 | UniquePtr<MemMap> mem_map_; |
| 90 | |
| 91 | typedef std::map<std::string, const OatDexFile*> Table; |
| 92 | Table oat_dex_files_; |
| 93 | |
| 94 | friend class OatClass; |
| 95 | friend class OatDexFile; |
| 96 | DISALLOW_COPY_AND_ASSIGN(OatFile); |
| 97 | }; |
| 98 | |
| 99 | } // namespace art |
| 100 | |
| 101 | #endif // ART_SRC_OAT_WRITER_H_ |