1 /* 2 * Copyright (c) 2021-2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef DFX_ELF_DEFINE_H 16 #define DFX_ELF_DEFINE_H 17 18 #include <cinttypes> 19 #include <string> 20 #if !is_mingw 21 #include <elf.h> 22 #include <link.h> 23 #endif 24 25 namespace OHOS { 26 namespace HiviewDFX { 27 static const std::string NOTE_GNU_BUILD_ID = ".note.gnu.build-id"; 28 static const std::string NOTES = ".notes"; 29 static const std::string GNU_DEBUGDATA = ".gnu_debugdata"; 30 static const std::string EH_FRAME_HDR = ".eh_frame_hdr"; 31 static const std::string EH_FRAME = ".eh_frame"; 32 static const std::string ARM_EXIDX = ".ARM.exidx"; 33 static const std::string ARM_EXTAB = ".ARM.extab"; 34 static const std::string SHSTRTAB = ".shstrtab"; 35 static const std::string STRTAB = ".strtab"; 36 static const std::string SYMTAB = ".symtab"; 37 static const std::string DYNSYM = ".dynsym"; 38 static const std::string DYNSTR = ".dynstr"; 39 static const std::string PLT = ".plt"; 40 41 struct ElfLoadInfo { 42 uint64_t offset = 0; 43 uint64_t tableVaddr = 0; 44 size_t tableSize = 0; 45 uint64_t align = 0; 46 uint64_t mmapLen = 0; 47 }; 48 49 struct ElfSymbol { 50 std::string nameStr = ""; 51 uint32_t name = 0; 52 unsigned char info = 0; 53 unsigned char other = 0; 54 uint16_t shndx = 0; 55 uint64_t value = 0; 56 uint64_t size = 0; 57 bool operator<(const ElfSymbol& other) const 58 { 59 return value < other.value; 60 } 61 }; 62 63 struct ElfShdr { 64 uint32_t name = 0; // Section name (string tbl index) 65 uint32_t type = 0; // Section type 66 uint64_t flags = 0; // Section flags 67 uint64_t addr = 0; // Section virtual addr at execution 68 uint64_t offset = 0; // Section file offset 69 uint64_t size = 0; // Section size in bytes 70 uint32_t link = 0; // Link to another section 71 uint32_t info = 0; // Additional section information 72 uint64_t addrAlign = 0; // Section alignment 73 uint64_t entSize = 0; // Entry size if section holds table 74 }; 75 76 struct ShdrInfo { 77 uint64_t addr = 0; 78 uint64_t entSize = 0; 79 uint64_t offset = 0; 80 uint64_t size = 0; 81 }; 82 83 struct __attribute__((packed)) DwarfEhFrameHdr { 84 unsigned char version = 0; 85 unsigned char ehFramePtrEnc = 0; 86 unsigned char fdeCountEnc = 0; 87 unsigned char tableEnc = 0; 88 ElfW(Addr) ehFrame; 89 }; 90 91 struct GnuDebugDataHdr { 92 uintptr_t address = 0; 93 uintptr_t size = 0; 94 }; 95 96 } // namespace HiviewDFX 97 } // namespace OHOS 98 #endif 99