1 /* 2 * Definitions needed for accessing ELF headers 3 */ 4 typedef struct { 5 uchar ident[16]; /* ident bytes */ 6 ushort type; /* file type */ 7 ushort machine; /* target machine */ 8 int version; /* file version */ 9 ulong elfentry; /* start address */ 10 ulong phoff; /* phdr file offset */ 11 ulong shoff; /* shdr file offset */ 12 int flags; /* file flags */ 13 ushort ehsize; /* sizeof ehdr */ 14 ushort phentsize; /* sizeof phdr */ 15 ushort phnum; /* number phdrs */ 16 ushort shentsize; /* sizeof shdr */ 17 ushort shnum; /* number shdrs */ 18 ushort shstrndx; /* shdr string index */ 19 } Ehdr; 20 21 typedef struct { 22 u8int ident[16]; /* ident bytes */ 23 u16int type; /* file type */ 24 u16int machine; /* target machine */ 25 u32int version; /* file version */ 26 u64int elfentry; /* start address */ 27 u64int phoff; /* phdr file offset */ 28 u64int shoff; /* shdr file offset */ 29 u32int flags; /* file flags */ 30 u16int ehsize; /* sizeof ehdr */ 31 u16int phentsize; /* sizeof phdr */ 32 u16int phnum; /* number phdrs */ 33 u16int shentsize; /* sizeof shdr */ 34 u16int shnum; /* number shdrs */ 35 u16int shstrndx; /* shdr string index */ 36 } E64hdr; 37 38 typedef struct { 39 int type; /* entry type */ 40 ulong offset; /* file offset */ 41 ulong vaddr; /* virtual address */ 42 ulong paddr; /* physical address */ 43 int filesz; /* file size */ 44 ulong memsz; /* memory size */ 45 int flags; /* entry flags */ 46 int align; /* memory/file alignment */ 47 } Phdr; 48 49 typedef struct { 50 u32int type; /* entry type */ 51 u32int flags; /* entry flags */ 52 u64int offset; /* file offset */ 53 u64int vaddr; /* virtual address */ 54 u64int paddr; /* physical address */ 55 u64int filesz; /* file size */ 56 u64int memsz; /* memory size */ 57 u64int align; /* memory/file alignment */ 58 } P64hdr; 59 60 typedef struct { 61 ulong name; /* section name */ 62 ulong type; /* SHT_... */ 63 ulong flags; /* SHF_... */ 64 ulong addr; /* virtual address */ 65 ulong offset; /* file offset */ 66 ulong size; /* section size */ 67 ulong link; /* misc info */ 68 ulong info; /* misc info */ 69 ulong addralign; /* memory alignment */ 70 ulong entsize; /* entry size if table */ 71 } Shdr; 72 73 typedef struct { 74 u32int name; /* section name */ 75 u32int type; /* SHT_... */ 76 u64int flags; /* SHF_... */ 77 u64int addr; /* virtual address */ 78 u64int offset; /* file offset */ 79 u64int size; /* section size */ 80 u32int link; /* misc info */ 81 u32int info; /* misc info */ 82 u64int addralign; /* memory alignment */ 83 u64int entsize; /* entry size if table */ 84 } S64hdr; 85 86 enum { 87 /* Ehdr codes */ 88 MAG0 = 0, /* ident[] indexes */ 89 MAG1 = 1, 90 MAG2 = 2, 91 MAG3 = 3, 92 CLASS = 4, 93 DATA = 5, 94 VERSION = 6, 95 96 ELFCLASSNONE = 0, /* ident[CLASS] */ 97 ELFCLASS32 = 1, 98 ELFCLASS64 = 2, 99 ELFCLASSNUM = 3, 100 101 ELFDATANONE = 0, /* ident[DATA] */ 102 ELFDATA2LSB = 1, 103 ELFDATA2MSB = 2, 104 ELFDATANUM = 3, 105 106 NOETYPE = 0, /* type */ 107 REL = 1, 108 EXEC = 2, 109 DYN = 3, 110 CORE = 4, 111 112 NONE = 0, /* machine */ 113 M32 = 1, /* AT&T WE 32100 */ 114 SPARC = 2, /* Sun SPARC */ 115 I386 = 3, /* Intel 80386 */ 116 M68K = 4, /* Motorola 68000 */ 117 M88K = 5, /* Motorola 88000 */ 118 I486 = 6, /* Intel 80486 */ 119 I860 = 7, /* Intel i860 */ 120 MIPS = 8, /* Mips R2000 */ 121 S370 = 9, /* Amdhal */ 122 MIPSR4K = 10, /* Mips R4000 */ 123 SPARC64 = 18, /* Sun SPARC v9 */ 124 POWER = 20, /* PowerPC */ 125 POWER64 = 21, /* PowerPC64 */ 126 ARM = 40, /* ARM */ 127 AMD64 = 62, /* Amd64 */ 128 ARM64 = 183, /* ARM64 */ 129 RISCV = 243, /* RISC-V */ 130 131 NO_VERSION = 0, /* version, ident[VERSION] */ 132 CURRENT = 1, 133 134 /* Phdr Codes */ 135 NOPTYPE = 0, /* type */ 136 LOAD = 1, 137 DYNAMIC = 2, 138 INTERP = 3, 139 NOTE = 4, 140 SHLIB = 5, 141 PHDR = 6, 142 143 R = 0x4, /* flags */ 144 W = 0x2, 145 X = 0x1, 146 147 /* Shdr Codes */ 148 Progbits = 1, /* section types */ 149 Strtab = 3, 150 Nobits = 8, 151 152 Swrite = 1, /* section attributes */ 153 Salloc = 2, 154 Sexec = 4, 155 }; 156 157 #define ELF_MAG ((0x7f<<24) | ('E'<<16) | ('L'<<8) | 'F') 158