1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_COMPILER_ELF_FIXUP_H_ 18 #define ART_COMPILER_ELF_FIXUP_H_ 19 20 #include <stdint.h> 21 22 #include "base/macros.h" 23 #include "os.h" 24 25 namespace art { 26 27 class ElfFile; 28 29 class ElfFixup { 30 public: 31 // Fixup an ELF file so that that oat header will be loaded at oat_begin. 32 // Returns true on success, false on failure. 33 static bool Fixup(File* file, uintptr_t oat_data_begin); 34 35 private: 36 // Fixup .dynamic d_ptr values for the expected base_address. 37 static bool FixupDynamic(ElfFile& elf_file, uintptr_t base_address); 38 39 // Fixup Elf32_Shdr p_vaddr to load at the desired address. 40 static bool FixupSectionHeaders(ElfFile& elf_file, uintptr_t base_address); 41 42 // Fixup Elf32_Phdr p_vaddr to load at the desired address. 43 static bool FixupProgramHeaders(ElfFile& elf_file, uintptr_t base_address); 44 45 // Fixup symbol table 46 static bool FixupSymbols(ElfFile& elf_file, uintptr_t base_address, bool dynamic); 47 48 // Fixup dynamic relocations 49 static bool FixupRelocations(ElfFile& elf_file, uintptr_t base_address); 50 51 DISALLOW_IMPLICIT_CONSTRUCTORS(ElfFixup); 52 }; 53 54 } // namespace art 55 56 #endif // ART_COMPILER_ELF_FIXUP_H_ 57