1 //===- llvm/BinaryFormat/ELF.h - ELF constants and structures ---*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This header contains common, non-processor-specific data structures and 10 // constants for the ELF file format. 11 // 12 // The details of the ELF32 bits in this file are largely based on the Tool 13 // Interface Standard (TIS) Executable and Linking Format (ELF) Specification 14 // Version 1.2, May 1995. The ELF64 stuff is based on ELF-64 Object File Format 15 // Version 1.5, Draft 2, May 1998 as well as OpenBSD header files. 16 // 17 //===----------------------------------------------------------------------===// 18 19 #ifndef LLVM_BINARYFORMAT_ELF_H 20 #define LLVM_BINARYFORMAT_ELF_H 21 22 #include "llvm/ADT/StringRef.h" 23 #include <cstdint> 24 #include <cstring> 25 26 namespace llvm { 27 namespace ELF { 28 29 using Elf32_Addr = uint32_t; // Program address 30 using Elf32_Off = uint32_t; // File offset 31 using Elf32_Half = uint16_t; 32 using Elf32_Word = uint32_t; 33 using Elf32_Sword = int32_t; 34 35 using Elf64_Addr = uint64_t; 36 using Elf64_Off = uint64_t; 37 using Elf64_Half = uint16_t; 38 using Elf64_Word = uint32_t; 39 using Elf64_Sword = int32_t; 40 using Elf64_Xword = uint64_t; 41 using Elf64_Sxword = int64_t; 42 43 // Object file magic string. 44 static const char ElfMagic[] = {0x7f, 'E', 'L', 'F', '\0'}; 45 46 // e_ident size and indices. 47 enum { 48 EI_MAG0 = 0, // File identification index. 49 EI_MAG1 = 1, // File identification index. 50 EI_MAG2 = 2, // File identification index. 51 EI_MAG3 = 3, // File identification index. 52 EI_CLASS = 4, // File class. 53 EI_DATA = 5, // Data encoding. 54 EI_VERSION = 6, // File version. 55 EI_OSABI = 7, // OS/ABI identification. 56 EI_ABIVERSION = 8, // ABI version. 57 EI_PAD = 9, // Start of padding bytes. 58 EI_NIDENT = 16 // Number of bytes in e_ident. 59 }; 60 61 struct Elf32_Ehdr { 62 unsigned char e_ident[EI_NIDENT]; // ELF Identification bytes 63 Elf32_Half e_type; // Type of file (see ET_* below) 64 Elf32_Half e_machine; // Required architecture for this file (see EM_*) 65 Elf32_Word e_version; // Must be equal to 1 66 Elf32_Addr e_entry; // Address to jump to in order to start program 67 Elf32_Off e_phoff; // Program header table's file offset, in bytes 68 Elf32_Off e_shoff; // Section header table's file offset, in bytes 69 Elf32_Word e_flags; // Processor-specific flags 70 Elf32_Half e_ehsize; // Size of ELF header, in bytes 71 Elf32_Half e_phentsize; // Size of an entry in the program header table 72 Elf32_Half e_phnum; // Number of entries in the program header table 73 Elf32_Half e_shentsize; // Size of an entry in the section header table 74 Elf32_Half e_shnum; // Number of entries in the section header table 75 Elf32_Half e_shstrndx; // Sect hdr table index of sect name string table 76 77 bool checkMagic() const { 78 return (memcmp(e_ident, ElfMagic, strlen(ElfMagic))) == 0; 79 } 80 81 unsigned char getFileClass() const { return e_ident[EI_CLASS]; } 82 unsigned char getDataEncoding() const { return e_ident[EI_DATA]; } 83 }; 84 85 // 64-bit ELF header. Fields are the same as for ELF32, but with different 86 // types (see above). 87 struct Elf64_Ehdr { 88 unsigned char e_ident[EI_NIDENT]; 89 Elf64_Half e_type; 90 Elf64_Half e_machine; 91 Elf64_Word e_version; 92 Elf64_Addr e_entry; 93 Elf64_Off e_phoff; 94 Elf64_Off e_shoff; 95 Elf64_Word e_flags; 96 Elf64_Half e_ehsize; 97 Elf64_Half e_phentsize; 98 Elf64_Half e_phnum; 99 Elf64_Half e_shentsize; 100 Elf64_Half e_shnum; 101 Elf64_Half e_shstrndx; 102 103 bool checkMagic() const { 104 return (memcmp(e_ident, ElfMagic, strlen(ElfMagic))) == 0; 105 } 106 107 unsigned char getFileClass() const { return e_ident[EI_CLASS]; } 108 unsigned char getDataEncoding() const { return e_ident[EI_DATA]; } 109 }; 110 111 // File types. 112 // See current registered ELF types at: 113 // http://www.sco.com/developers/gabi/latest/ch4.eheader.html 114 enum { 115 ET_NONE = 0, // No file type 116 ET_REL = 1, // Relocatable file 117 ET_EXEC = 2, // Executable file 118 ET_DYN = 3, // Shared object file 119 ET_CORE = 4, // Core file 120 ET_LOOS = 0xfe00, // Beginning of operating system-specific codes 121 ET_HIOS = 0xfeff, // Operating system-specific 122 ET_LOPROC = 0xff00, // Beginning of processor-specific codes 123 ET_HIPROC = 0xffff // Processor-specific 124 }; 125 126 // Versioning 127 enum { EV_NONE = 0, EV_CURRENT = 1 }; 128 129 // Machine architectures 130 // See current registered ELF machine architectures at: 131 // http://www.uxsglobal.com/developers/gabi/latest/ch4.eheader.html 132 enum { 133 EM_NONE = 0, // No machine 134 EM_M32 = 1, // AT&T WE 32100 135 EM_SPARC = 2, // SPARC 136 EM_386 = 3, // Intel 386 137 EM_68K = 4, // Motorola 68000 138 EM_88K = 5, // Motorola 88000 139 EM_IAMCU = 6, // Intel MCU 140 EM_860 = 7, // Intel 80860 141 EM_MIPS = 8, // MIPS R3000 142 EM_S370 = 9, // IBM System/370 143 EM_MIPS_RS3_LE = 10, // MIPS RS3000 Little-endian 144 EM_PARISC = 15, // Hewlett-Packard PA-RISC 145 EM_VPP500 = 17, // Fujitsu VPP500 146 EM_SPARC32PLUS = 18, // Enhanced instruction set SPARC 147 EM_960 = 19, // Intel 80960 148 EM_PPC = 20, // PowerPC 149 EM_PPC64 = 21, // PowerPC64 150 EM_S390 = 22, // IBM System/390 151 EM_SPU = 23, // IBM SPU/SPC 152 EM_V800 = 36, // NEC V800 153 EM_FR20 = 37, // Fujitsu FR20 154 EM_RH32 = 38, // TRW RH-32 155 EM_RCE = 39, // Motorola RCE 156 EM_ARM = 40, // ARM 157 EM_ALPHA = 41, // DEC Alpha 158 EM_SH = 42, // Hitachi SH 159 EM_SPARCV9 = 43, // SPARC V9 160 EM_TRICORE = 44, // Siemens TriCore 161 EM_ARC = 45, // Argonaut RISC Core 162 EM_H8_300 = 46, // Hitachi H8/300 163 EM_H8_300H = 47, // Hitachi H8/300H 164 EM_H8S = 48, // Hitachi H8S 165 EM_H8_500 = 49, // Hitachi H8/500 166 EM_IA_64 = 50, // Intel IA-64 processor architecture 167 EM_MIPS_X = 51, // Stanford MIPS-X 168 EM_COLDFIRE = 52, // Motorola ColdFire 169 EM_68HC12 = 53, // Motorola M68HC12 170 EM_MMA = 54, // Fujitsu MMA Multimedia Accelerator 171 EM_PCP = 55, // Siemens PCP 172 EM_NCPU = 56, // Sony nCPU embedded RISC processor 173 EM_NDR1 = 57, // Denso NDR1 microprocessor 174 EM_STARCORE = 58, // Motorola Star*Core processor 175 EM_ME16 = 59, // Toyota ME16 processor 176 EM_ST100 = 60, // STMicroelectronics ST100 processor 177 EM_TINYJ = 61, // Advanced Logic Corp. TinyJ embedded processor family 178 EM_X86_64 = 62, // AMD x86-64 architecture 179 EM_PDSP = 63, // Sony DSP Processor 180 EM_PDP10 = 64, // Digital Equipment Corp. PDP-10 181 EM_PDP11 = 65, // Digital Equipment Corp. PDP-11 182 EM_FX66 = 66, // Siemens FX66 microcontroller 183 EM_ST9PLUS = 67, // STMicroelectronics ST9+ 8/16 bit microcontroller 184 EM_ST7 = 68, // STMicroelectronics ST7 8-bit microcontroller 185 EM_68HC16 = 69, // Motorola MC68HC16 Microcontroller 186 EM_68HC11 = 70, // Motorola MC68HC11 Microcontroller 187 EM_68HC08 = 71, // Motorola MC68HC08 Microcontroller 188 EM_68HC05 = 72, // Motorola MC68HC05 Microcontroller 189 EM_SVX = 73, // Silicon Graphics SVx 190 EM_ST19 = 74, // STMicroelectronics ST19 8-bit microcontroller 191 EM_VAX = 75, // Digital VAX 192 EM_CRIS = 76, // Axis Communications 32-bit embedded processor 193 EM_JAVELIN = 77, // Infineon Technologies 32-bit embedded processor 194 EM_FIREPATH = 78, // Element 14 64-bit DSP Processor 195 EM_ZSP = 79, // LSI Logic 16-bit DSP Processor 196 EM_MMIX = 80, // Donald Knuth's educational 64-bit processor 197 EM_HUANY = 81, // Harvard University machine-independent object files 198 EM_PRISM = 82, // SiTera Prism 199 EM_AVR = 83, // Atmel AVR 8-bit microcontroller 200 EM_FR30 = 84, // Fujitsu FR30 201 EM_D10V = 85, // Mitsubishi D10V 202 EM_D30V = 86, // Mitsubishi D30V 203 EM_V850 = 87, // NEC v850 204 EM_M32R = 88, // Mitsubishi M32R 205 EM_MN10300 = 89, // Matsushita MN10300 206 EM_MN10200 = 90, // Matsushita MN10200 207 EM_PJ = 91, // picoJava 208 EM_OPENRISC = 92, // OpenRISC 32-bit embedded processor 209 EM_ARC_COMPACT = 93, // ARC International ARCompact processor (old 210 // spelling/synonym: EM_ARC_A5) 211 EM_XTENSA = 94, // Tensilica Xtensa Architecture 212 EM_VIDEOCORE = 95, // Alphamosaic VideoCore processor 213 EM_TMM_GPP = 96, // Thompson Multimedia General Purpose Processor 214 EM_NS32K = 97, // National Semiconductor 32000 series 215 EM_TPC = 98, // Tenor Network TPC processor 216 EM_SNP1K = 99, // Trebia SNP 1000 processor 217 EM_ST200 = 100, // STMicroelectronics (www.st.com) ST200 218 EM_IP2K = 101, // Ubicom IP2xxx microcontroller family 219 EM_MAX = 102, // MAX Processor 220 EM_CR = 103, // National Semiconductor CompactRISC microprocessor 221 EM_F2MC16 = 104, // Fujitsu F2MC16 222 EM_MSP430 = 105, // Texas Instruments embedded microcontroller msp430 223 EM_BLACKFIN = 106, // Analog Devices Blackfin (DSP) processor 224 EM_SE_C33 = 107, // S1C33 Family of Seiko Epson processors 225 EM_SEP = 108, // Sharp embedded microprocessor 226 EM_ARCA = 109, // Arca RISC Microprocessor 227 EM_UNICORE = 110, // Microprocessor series from PKU-Unity Ltd. and MPRC 228 // of Peking University 229 EM_EXCESS = 111, // eXcess: 16/32/64-bit configurable embedded CPU 230 EM_DXP = 112, // Icera Semiconductor Inc. Deep Execution Processor 231 EM_ALTERA_NIOS2 = 113, // Altera Nios II soft-core processor 232 EM_CRX = 114, // National Semiconductor CompactRISC CRX 233 EM_XGATE = 115, // Motorola XGATE embedded processor 234 EM_C166 = 116, // Infineon C16x/XC16x processor 235 EM_M16C = 117, // Renesas M16C series microprocessors 236 EM_DSPIC30F = 118, // Microchip Technology dsPIC30F Digital Signal 237 // Controller 238 EM_CE = 119, // Freescale Communication Engine RISC core 239 EM_M32C = 120, // Renesas M32C series microprocessors 240 EM_TSK3000 = 131, // Altium TSK3000 core 241 EM_RS08 = 132, // Freescale RS08 embedded processor 242 EM_SHARC = 133, // Analog Devices SHARC family of 32-bit DSP 243 // processors 244 EM_ECOG2 = 134, // Cyan Technology eCOG2 microprocessor 245 EM_SCORE7 = 135, // Sunplus S+core7 RISC processor 246 EM_DSP24 = 136, // New Japan Radio (NJR) 24-bit DSP Processor 247 EM_VIDEOCORE3 = 137, // Broadcom VideoCore III processor 248 EM_LATTICEMICO32 = 138, // RISC processor for Lattice FPGA architecture 249 EM_SE_C17 = 139, // Seiko Epson C17 family 250 EM_TI_C6000 = 140, // The Texas Instruments TMS320C6000 DSP family 251 EM_TI_C2000 = 141, // The Texas Instruments TMS320C2000 DSP family 252 EM_TI_C5500 = 142, // The Texas Instruments TMS320C55x DSP family 253 EM_MMDSP_PLUS = 160, // STMicroelectronics 64bit VLIW Data Signal Processor 254 EM_CYPRESS_M8C = 161, // Cypress M8C microprocessor 255 EM_R32C = 162, // Renesas R32C series microprocessors 256 EM_TRIMEDIA = 163, // NXP Semiconductors TriMedia architecture family 257 EM_HEXAGON = 164, // Qualcomm Hexagon processor 258 EM_8051 = 165, // Intel 8051 and variants 259 EM_STXP7X = 166, // STMicroelectronics STxP7x family of configurable 260 // and extensible RISC processors 261 EM_NDS32 = 167, // Andes Technology compact code size embedded RISC 262 // processor family 263 EM_ECOG1 = 168, // Cyan Technology eCOG1X family 264 EM_ECOG1X = 168, // Cyan Technology eCOG1X family 265 EM_MAXQ30 = 169, // Dallas Semiconductor MAXQ30 Core Micro-controllers 266 EM_XIMO16 = 170, // New Japan Radio (NJR) 16-bit DSP Processor 267 EM_MANIK = 171, // M2000 Reconfigurable RISC Microprocessor 268 EM_CRAYNV2 = 172, // Cray Inc. NV2 vector architecture 269 EM_RX = 173, // Renesas RX family 270 EM_METAG = 174, // Imagination Technologies META processor 271 // architecture 272 EM_MCST_ELBRUS = 175, // MCST Elbrus general purpose hardware architecture 273 EM_ECOG16 = 176, // Cyan Technology eCOG16 family 274 EM_CR16 = 177, // National Semiconductor CompactRISC CR16 16-bit 275 // microprocessor 276 EM_ETPU = 178, // Freescale Extended Time Processing Unit 277 EM_SLE9X = 179, // Infineon Technologies SLE9X core 278 EM_L10M = 180, // Intel L10M 279 EM_K10M = 181, // Intel K10M 280 EM_AARCH64 = 183, // ARM AArch64 281 EM_AVR32 = 185, // Atmel Corporation 32-bit microprocessor family 282 EM_STM8 = 186, // STMicroeletronics STM8 8-bit microcontroller 283 EM_TILE64 = 187, // Tilera TILE64 multicore architecture family 284 EM_TILEPRO = 188, // Tilera TILEPro multicore architecture family 285 EM_MICROBLAZE = 189, // Xilinx MicroBlaze 32-bit RISC soft processor core 286 EM_CUDA = 190, // NVIDIA CUDA architecture 287 EM_TILEGX = 191, // Tilera TILE-Gx multicore architecture family 288 EM_CLOUDSHIELD = 192, // CloudShield architecture family 289 EM_COREA_1ST = 193, // KIPO-KAIST Core-A 1st generation processor family 290 EM_COREA_2ND = 194, // KIPO-KAIST Core-A 2nd generation processor family 291 EM_ARC_COMPACT2 = 195, // Synopsys ARCompact V2 292 EM_OPEN8 = 196, // Open8 8-bit RISC soft processor core 293 EM_RL78 = 197, // Renesas RL78 family 294 EM_VIDEOCORE5 = 198, // Broadcom VideoCore V processor 295 EM_78KOR = 199, // Renesas 78KOR family 296 EM_56800EX = 200, // Freescale 56800EX Digital Signal Controller (DSC) 297 EM_BA1 = 201, // Beyond BA1 CPU architecture 298 EM_BA2 = 202, // Beyond BA2 CPU architecture 299 EM_XCORE = 203, // XMOS xCORE processor family 300 EM_MCHP_PIC = 204, // Microchip 8-bit PIC(r) family 301 EM_INTEL205 = 205, // Reserved by Intel 302 EM_INTEL206 = 206, // Reserved by Intel 303 EM_INTEL207 = 207, // Reserved by Intel 304 EM_INTEL208 = 208, // Reserved by Intel 305 EM_INTEL209 = 209, // Reserved by Intel 306 EM_KM32 = 210, // KM211 KM32 32-bit processor 307 EM_KMX32 = 211, // KM211 KMX32 32-bit processor 308 EM_KMX16 = 212, // KM211 KMX16 16-bit processor 309 EM_KMX8 = 213, // KM211 KMX8 8-bit processor 310 EM_KVARC = 214, // KM211 KVARC processor 311 EM_CDP = 215, // Paneve CDP architecture family 312 EM_COGE = 216, // Cognitive Smart Memory Processor 313 EM_COOL = 217, // iCelero CoolEngine 314 EM_NORC = 218, // Nanoradio Optimized RISC 315 EM_CSR_KALIMBA = 219, // CSR Kalimba architecture family 316 EM_AMDGPU = 224, // AMD GPU architecture 317 EM_RISCV = 243, // RISC-V 318 EM_LANAI = 244, // Lanai 32-bit processor 319 EM_BPF = 247, // Linux kernel bpf virtual machine 320 EM_VE = 251, // NEC SX-Aurora VE 321 EM_CSKY = 252, // C-SKY 32-bit processor 322 EM_LOONGARCH = 258, // LoongArch 323 }; 324 325 // Object file classes. 326 enum { 327 ELFCLASSNONE = 0, 328 ELFCLASS32 = 1, // 32-bit object file 329 ELFCLASS64 = 2 // 64-bit object file 330 }; 331 332 // Object file byte orderings. 333 enum { 334 ELFDATANONE = 0, // Invalid data encoding. 335 ELFDATA2LSB = 1, // Little-endian object file 336 ELFDATA2MSB = 2 // Big-endian object file 337 }; 338 339 // OS ABI identification. 340 enum { 341 ELFOSABI_NONE = 0, // UNIX System V ABI 342 ELFOSABI_HPUX = 1, // HP-UX operating system 343 ELFOSABI_NETBSD = 2, // NetBSD 344 ELFOSABI_GNU = 3, // GNU/Linux 345 ELFOSABI_LINUX = 3, // Historical alias for ELFOSABI_GNU. 346 ELFOSABI_HURD = 4, // GNU/Hurd 347 ELFOSABI_SOLARIS = 6, // Solaris 348 ELFOSABI_AIX = 7, // AIX 349 ELFOSABI_IRIX = 8, // IRIX 350 ELFOSABI_FREEBSD = 9, // FreeBSD 351 ELFOSABI_TRU64 = 10, // TRU64 UNIX 352 ELFOSABI_MODESTO = 11, // Novell Modesto 353 ELFOSABI_OPENBSD = 12, // OpenBSD 354 ELFOSABI_OPENVMS = 13, // OpenVMS 355 ELFOSABI_NSK = 14, // Hewlett-Packard Non-Stop Kernel 356 ELFOSABI_AROS = 15, // AROS 357 ELFOSABI_FENIXOS = 16, // FenixOS 358 ELFOSABI_CLOUDABI = 17, // Nuxi CloudABI 359 ELFOSABI_FIRST_ARCH = 64, // First architecture-specific OS ABI 360 ELFOSABI_AMDGPU_HSA = 64, // AMD HSA runtime 361 ELFOSABI_AMDGPU_PAL = 65, // AMD PAL runtime 362 ELFOSABI_AMDGPU_MESA3D = 66, // AMD GCN GPUs (GFX6+) for MESA runtime 363 ELFOSABI_ARM = 97, // ARM 364 ELFOSABI_C6000_ELFABI = 64, // Bare-metal TMS320C6000 365 ELFOSABI_C6000_LINUX = 65, // Linux TMS320C6000 366 ELFOSABI_STANDALONE = 255, // Standalone (embedded) application 367 ELFOSABI_LAST_ARCH = 255 // Last Architecture-specific OS ABI 368 }; 369 370 // AMDGPU OS ABI Version identification. 371 enum { 372 // ELFABIVERSION_AMDGPU_HSA_V1 does not exist because OS ABI identification 373 // was never defined for V1. 374 ELFABIVERSION_AMDGPU_HSA_V2 = 0, 375 ELFABIVERSION_AMDGPU_HSA_V3 = 1, 376 ELFABIVERSION_AMDGPU_HSA_V4 = 2, 377 ELFABIVERSION_AMDGPU_HSA_V5 = 3 378 }; 379 380 #define ELF_RELOC(name, value) name = value, 381 382 // X86_64 relocations. 383 enum { 384 #include "ELFRelocs/x86_64.def" 385 }; 386 387 // i386 relocations. 388 enum { 389 #include "ELFRelocs/i386.def" 390 }; 391 392 // ELF Relocation types for PPC32 393 enum { 394 #include "ELFRelocs/PowerPC.def" 395 }; 396 397 // Specific e_flags for PPC64 398 enum { 399 // e_flags bits specifying ABI: 400 // 1 for original ABI using function descriptors, 401 // 2 for revised ABI without function descriptors, 402 // 0 for unspecified or not using any features affected by the differences. 403 EF_PPC64_ABI = 3 404 }; 405 406 // Special values for the st_other field in the symbol table entry for PPC64. 407 enum { 408 STO_PPC64_LOCAL_BIT = 5, 409 STO_PPC64_LOCAL_MASK = (7 << STO_PPC64_LOCAL_BIT) 410 }; 411 static inline int64_t decodePPC64LocalEntryOffset(unsigned Other) { 412 unsigned Val = (Other & STO_PPC64_LOCAL_MASK) >> STO_PPC64_LOCAL_BIT; 413 return ((1 << Val) >> 2) << 2; 414 } 415 416 // ELF Relocation types for PPC64 417 enum { 418 #include "ELFRelocs/PowerPC64.def" 419 }; 420 421 // ELF Relocation types for AArch64 422 enum { 423 #include "ELFRelocs/AArch64.def" 424 }; 425 426 // Special values for the st_other field in the symbol table entry for AArch64. 427 enum { 428 // Symbol may follow different calling convention than base PCS. 429 STO_AARCH64_VARIANT_PCS = 0x80 430 }; 431 432 // ARM Specific e_flags 433 enum : unsigned { 434 EF_ARM_SOFT_FLOAT = 0x00000200U, // Legacy pre EABI_VER5 435 EF_ARM_ABI_FLOAT_SOFT = 0x00000200U, // EABI_VER5 436 EF_ARM_VFP_FLOAT = 0x00000400U, // Legacy pre EABI_VER5 437 EF_ARM_ABI_FLOAT_HARD = 0x00000400U, // EABI_VER5 438 EF_ARM_BE8 = 0x00800000U, 439 EF_ARM_EABI_UNKNOWN = 0x00000000U, 440 EF_ARM_EABI_VER1 = 0x01000000U, 441 EF_ARM_EABI_VER2 = 0x02000000U, 442 EF_ARM_EABI_VER3 = 0x03000000U, 443 EF_ARM_EABI_VER4 = 0x04000000U, 444 EF_ARM_EABI_VER5 = 0x05000000U, 445 EF_ARM_EABIMASK = 0xFF000000U 446 }; 447 448 // ELF Relocation types for ARM 449 enum { 450 #include "ELFRelocs/ARM.def" 451 }; 452 453 // ARC Specific e_flags 454 enum : unsigned { 455 EF_ARC_MACH_MSK = 0x000000ff, 456 EF_ARC_OSABI_MSK = 0x00000f00, 457 E_ARC_MACH_ARC600 = 0x00000002, 458 E_ARC_MACH_ARC601 = 0x00000004, 459 E_ARC_MACH_ARC700 = 0x00000003, 460 EF_ARC_CPU_ARCV2EM = 0x00000005, 461 EF_ARC_CPU_ARCV2HS = 0x00000006, 462 E_ARC_OSABI_ORIG = 0x00000000, 463 E_ARC_OSABI_V2 = 0x00000200, 464 E_ARC_OSABI_V3 = 0x00000300, 465 E_ARC_OSABI_V4 = 0x00000400, 466 EF_ARC_PIC = 0x00000100 467 }; 468 469 // ELF Relocation types for ARC 470 enum { 471 #include "ELFRelocs/ARC.def" 472 }; 473 474 // AVR specific e_flags 475 enum : unsigned { 476 EF_AVR_ARCH_AVR1 = 1, 477 EF_AVR_ARCH_AVR2 = 2, 478 EF_AVR_ARCH_AVR25 = 25, 479 EF_AVR_ARCH_AVR3 = 3, 480 EF_AVR_ARCH_AVR31 = 31, 481 EF_AVR_ARCH_AVR35 = 35, 482 EF_AVR_ARCH_AVR4 = 4, 483 EF_AVR_ARCH_AVR5 = 5, 484 EF_AVR_ARCH_AVR51 = 51, 485 EF_AVR_ARCH_AVR6 = 6, 486 EF_AVR_ARCH_AVRTINY = 100, 487 EF_AVR_ARCH_XMEGA1 = 101, 488 EF_AVR_ARCH_XMEGA2 = 102, 489 EF_AVR_ARCH_XMEGA3 = 103, 490 EF_AVR_ARCH_XMEGA4 = 104, 491 EF_AVR_ARCH_XMEGA5 = 105, 492 EF_AVR_ARCH_XMEGA6 = 106, 493 EF_AVR_ARCH_XMEGA7 = 107, 494 495 EF_AVR_ARCH_MASK = 0x7f, // EF_AVR_ARCH_xxx selection mask 496 497 EF_AVR_LINKRELAX_PREPARED = 0x80, // The file is prepared for linker 498 // relaxation to be applied 499 }; 500 501 // ELF Relocation types for AVR 502 enum { 503 #include "ELFRelocs/AVR.def" 504 }; 505 506 // Mips Specific e_flags 507 enum : unsigned { 508 EF_MIPS_NOREORDER = 0x00000001, // Don't reorder instructions 509 EF_MIPS_PIC = 0x00000002, // Position independent code 510 EF_MIPS_CPIC = 0x00000004, // Call object with Position independent code 511 EF_MIPS_ABI2 = 0x00000020, // File uses N32 ABI 512 EF_MIPS_32BITMODE = 0x00000100, // Code compiled for a 64-bit machine 513 // in 32-bit mode 514 EF_MIPS_FP64 = 0x00000200, // Code compiled for a 32-bit machine 515 // but uses 64-bit FP registers 516 EF_MIPS_NAN2008 = 0x00000400, // Uses IEE 754-2008 NaN encoding 517 518 // ABI flags 519 EF_MIPS_ABI_O32 = 0x00001000, // This file follows the first MIPS 32 bit ABI 520 EF_MIPS_ABI_O64 = 0x00002000, // O32 ABI extended for 64-bit architecture. 521 EF_MIPS_ABI_EABI32 = 0x00003000, // EABI in 32 bit mode. 522 EF_MIPS_ABI_EABI64 = 0x00004000, // EABI in 64 bit mode. 523 EF_MIPS_ABI = 0x0000f000, // Mask for selecting EF_MIPS_ABI_ variant. 524 525 // MIPS machine variant 526 EF_MIPS_MACH_NONE = 0x00000000, // A standard MIPS implementation. 527 EF_MIPS_MACH_3900 = 0x00810000, // Toshiba R3900 528 EF_MIPS_MACH_4010 = 0x00820000, // LSI R4010 529 EF_MIPS_MACH_4100 = 0x00830000, // NEC VR4100 530 EF_MIPS_MACH_4650 = 0x00850000, // MIPS R4650 531 EF_MIPS_MACH_4120 = 0x00870000, // NEC VR4120 532 EF_MIPS_MACH_4111 = 0x00880000, // NEC VR4111/VR4181 533 EF_MIPS_MACH_SB1 = 0x008a0000, // Broadcom SB-1 534 EF_MIPS_MACH_OCTEON = 0x008b0000, // Cavium Networks Octeon 535 EF_MIPS_MACH_XLR = 0x008c0000, // RMI Xlr 536 EF_MIPS_MACH_OCTEON2 = 0x008d0000, // Cavium Networks Octeon2 537 EF_MIPS_MACH_OCTEON3 = 0x008e0000, // Cavium Networks Octeon3 538 EF_MIPS_MACH_5400 = 0x00910000, // NEC VR5400 539 EF_MIPS_MACH_5900 = 0x00920000, // MIPS R5900 540 EF_MIPS_MACH_5500 = 0x00980000, // NEC VR5500 541 EF_MIPS_MACH_9000 = 0x00990000, // Unknown 542 EF_MIPS_MACH_LS2E = 0x00a00000, // ST Microelectronics Loongson 2E 543 EF_MIPS_MACH_LS2F = 0x00a10000, // ST Microelectronics Loongson 2F 544 EF_MIPS_MACH_LS3A = 0x00a20000, // Loongson 3A 545 EF_MIPS_MACH = 0x00ff0000, // EF_MIPS_MACH_xxx selection mask 546 547 // ARCH_ASE 548 EF_MIPS_MICROMIPS = 0x02000000, // microMIPS 549 EF_MIPS_ARCH_ASE_M16 = 0x04000000, // Has Mips-16 ISA extensions 550 EF_MIPS_ARCH_ASE_MDMX = 0x08000000, // Has MDMX multimedia extensions 551 EF_MIPS_ARCH_ASE = 0x0f000000, // Mask for EF_MIPS_ARCH_ASE_xxx flags 552 553 // ARCH 554 EF_MIPS_ARCH_1 = 0x00000000, // MIPS1 instruction set 555 EF_MIPS_ARCH_2 = 0x10000000, // MIPS2 instruction set 556 EF_MIPS_ARCH_3 = 0x20000000, // MIPS3 instruction set 557 EF_MIPS_ARCH_4 = 0x30000000, // MIPS4 instruction set 558 EF_MIPS_ARCH_5 = 0x40000000, // MIPS5 instruction set 559 EF_MIPS_ARCH_32 = 0x50000000, // MIPS32 instruction set per linux not elf.h 560 EF_MIPS_ARCH_64 = 0x60000000, // MIPS64 instruction set per linux not elf.h 561 EF_MIPS_ARCH_32R2 = 0x70000000, // mips32r2, mips32r3, mips32r5 562 EF_MIPS_ARCH_64R2 = 0x80000000, // mips64r2, mips64r3, mips64r5 563 EF_MIPS_ARCH_32R6 = 0x90000000, // mips32r6 564 EF_MIPS_ARCH_64R6 = 0xa0000000, // mips64r6 565 EF_MIPS_ARCH = 0xf0000000 // Mask for applying EF_MIPS_ARCH_ variant 566 }; 567 568 // MIPS-specific section indexes 569 enum { 570 SHN_MIPS_ACOMMON = 0xff00, // Common symbols which are defined and allocated 571 SHN_MIPS_TEXT = 0xff01, // Not ABI compliant 572 SHN_MIPS_DATA = 0xff02, // Not ABI compliant 573 SHN_MIPS_SCOMMON = 0xff03, // Common symbols for global data area 574 SHN_MIPS_SUNDEFINED = 0xff04 // Undefined symbols for global data area 575 }; 576 577 // ELF Relocation types for Mips 578 enum { 579 #include "ELFRelocs/Mips.def" 580 }; 581 582 // Special values for the st_other field in the symbol table entry for MIPS. 583 enum { 584 STO_MIPS_OPTIONAL = 0x04, // Symbol whose definition is optional 585 STO_MIPS_PLT = 0x08, // PLT entry related dynamic table record 586 STO_MIPS_PIC = 0x20, // PIC func in an object mixes PIC/non-PIC 587 STO_MIPS_MICROMIPS = 0x80, // MIPS Specific ISA for MicroMips 588 STO_MIPS_MIPS16 = 0xf0 // MIPS Specific ISA for Mips16 589 }; 590 591 // .MIPS.options section descriptor kinds 592 enum { 593 ODK_NULL = 0, // Undefined 594 ODK_REGINFO = 1, // Register usage information 595 ODK_EXCEPTIONS = 2, // Exception processing options 596 ODK_PAD = 3, // Section padding options 597 ODK_HWPATCH = 4, // Hardware patches applied 598 ODK_FILL = 5, // Linker fill value 599 ODK_TAGS = 6, // Space for tool identification 600 ODK_HWAND = 7, // Hardware AND patches applied 601 ODK_HWOR = 8, // Hardware OR patches applied 602 ODK_GP_GROUP = 9, // GP group to use for text/data sections 603 ODK_IDENT = 10, // ID information 604 ODK_PAGESIZE = 11 // Page size information 605 }; 606 607 // Hexagon-specific e_flags 608 enum { 609 // Object processor version flags, bits[11:0] 610 EF_HEXAGON_MACH_V2 = 0x00000001, // Hexagon V2 611 EF_HEXAGON_MACH_V3 = 0x00000002, // Hexagon V3 612 EF_HEXAGON_MACH_V4 = 0x00000003, // Hexagon V4 613 EF_HEXAGON_MACH_V5 = 0x00000004, // Hexagon V5 614 EF_HEXAGON_MACH_V55 = 0x00000005, // Hexagon V55 615 EF_HEXAGON_MACH_V60 = 0x00000060, // Hexagon V60 616 EF_HEXAGON_MACH_V62 = 0x00000062, // Hexagon V62 617 EF_HEXAGON_MACH_V65 = 0x00000065, // Hexagon V65 618 EF_HEXAGON_MACH_V66 = 0x00000066, // Hexagon V66 619 EF_HEXAGON_MACH_V67 = 0x00000067, // Hexagon V67 620 EF_HEXAGON_MACH_V67T = 0x00008067, // Hexagon V67T 621 EF_HEXAGON_MACH_V68 = 0x00000068, // Hexagon V68 622 EF_HEXAGON_MACH_V69 = 0x00000069, // Hexagon V69 623 EF_HEXAGON_MACH_V71 = 0x00000071, // Hexagon V71 624 EF_HEXAGON_MACH_V71T = 0x00008071, // Hexagon V71T 625 EF_HEXAGON_MACH_V73 = 0x00000073, // Hexagon V73 626 EF_HEXAGON_MACH = 0x000003ff, // Hexagon V.. 627 628 // Highest ISA version flags 629 EF_HEXAGON_ISA_MACH = 0x00000000, // Same as specified in bits[11:0] 630 // of e_flags 631 EF_HEXAGON_ISA_V2 = 0x00000010, // Hexagon V2 ISA 632 EF_HEXAGON_ISA_V3 = 0x00000020, // Hexagon V3 ISA 633 EF_HEXAGON_ISA_V4 = 0x00000030, // Hexagon V4 ISA 634 EF_HEXAGON_ISA_V5 = 0x00000040, // Hexagon V5 ISA 635 EF_HEXAGON_ISA_V55 = 0x00000050, // Hexagon V55 ISA 636 EF_HEXAGON_ISA_V60 = 0x00000060, // Hexagon V60 ISA 637 EF_HEXAGON_ISA_V62 = 0x00000062, // Hexagon V62 ISA 638 EF_HEXAGON_ISA_V65 = 0x00000065, // Hexagon V65 ISA 639 EF_HEXAGON_ISA_V66 = 0x00000066, // Hexagon V66 ISA 640 EF_HEXAGON_ISA_V67 = 0x00000067, // Hexagon V67 ISA 641 EF_HEXAGON_ISA_V68 = 0x00000068, // Hexagon V68 ISA 642 EF_HEXAGON_ISA_V69 = 0x00000069, // Hexagon V69 ISA 643 EF_HEXAGON_ISA_V71 = 0x00000071, // Hexagon V71 ISA 644 EF_HEXAGON_ISA_V73 = 0x00000073, // Hexagon V73 ISA 645 EF_HEXAGON_ISA_V75 = 0x00000075, // Hexagon V75 ISA 646 EF_HEXAGON_ISA = 0x000003ff, // Hexagon V.. ISA 647 }; 648 649 // Hexagon-specific section indexes for common small data 650 enum { 651 SHN_HEXAGON_SCOMMON = 0xff00, // Other access sizes 652 SHN_HEXAGON_SCOMMON_1 = 0xff01, // Byte-sized access 653 SHN_HEXAGON_SCOMMON_2 = 0xff02, // Half-word-sized access 654 SHN_HEXAGON_SCOMMON_4 = 0xff03, // Word-sized access 655 SHN_HEXAGON_SCOMMON_8 = 0xff04 // Double-word-size access 656 }; 657 658 // ELF Relocation types for Hexagon 659 enum { 660 #include "ELFRelocs/Hexagon.def" 661 }; 662 663 // ELF Relocation type for Lanai. 664 enum { 665 #include "ELFRelocs/Lanai.def" 666 }; 667 668 // RISCV Specific e_flags 669 enum : unsigned { 670 EF_RISCV_RVC = 0x0001, 671 EF_RISCV_FLOAT_ABI = 0x0006, 672 EF_RISCV_FLOAT_ABI_SOFT = 0x0000, 673 EF_RISCV_FLOAT_ABI_SINGLE = 0x0002, 674 EF_RISCV_FLOAT_ABI_DOUBLE = 0x0004, 675 EF_RISCV_FLOAT_ABI_QUAD = 0x0006, 676 EF_RISCV_RVE = 0x0008, 677 EF_RISCV_TSO = 0x0010, 678 }; 679 680 // ELF Relocation types for RISC-V 681 enum { 682 #include "ELFRelocs/RISCV.def" 683 }; 684 685 enum { 686 // Symbol may follow different calling convention than the standard calling 687 // convention. 688 STO_RISCV_VARIANT_CC = 0x80 689 }; 690 691 // ELF Relocation types for S390/zSeries 692 enum { 693 #include "ELFRelocs/SystemZ.def" 694 }; 695 696 // ELF Relocation type for Sparc. 697 enum { 698 #include "ELFRelocs/Sparc.def" 699 }; 700 701 // AMDGPU specific e_flags. 702 enum : unsigned { 703 // Processor selection mask for EF_AMDGPU_MACH_* values. 704 EF_AMDGPU_MACH = 0x0ff, 705 706 // Not specified processor. 707 EF_AMDGPU_MACH_NONE = 0x000, 708 709 // R600-based processors. 710 711 // Radeon HD 2000/3000 Series (R600). 712 EF_AMDGPU_MACH_R600_R600 = 0x001, 713 EF_AMDGPU_MACH_R600_R630 = 0x002, 714 EF_AMDGPU_MACH_R600_RS880 = 0x003, 715 EF_AMDGPU_MACH_R600_RV670 = 0x004, 716 // Radeon HD 4000 Series (R700). 717 EF_AMDGPU_MACH_R600_RV710 = 0x005, 718 EF_AMDGPU_MACH_R600_RV730 = 0x006, 719 EF_AMDGPU_MACH_R600_RV770 = 0x007, 720 // Radeon HD 5000 Series (Evergreen). 721 EF_AMDGPU_MACH_R600_CEDAR = 0x008, 722 EF_AMDGPU_MACH_R600_CYPRESS = 0x009, 723 EF_AMDGPU_MACH_R600_JUNIPER = 0x00a, 724 EF_AMDGPU_MACH_R600_REDWOOD = 0x00b, 725 EF_AMDGPU_MACH_R600_SUMO = 0x00c, 726 // Radeon HD 6000 Series (Northern Islands). 727 EF_AMDGPU_MACH_R600_BARTS = 0x00d, 728 EF_AMDGPU_MACH_R600_CAICOS = 0x00e, 729 EF_AMDGPU_MACH_R600_CAYMAN = 0x00f, 730 EF_AMDGPU_MACH_R600_TURKS = 0x010, 731 732 // Reserved for R600-based processors. 733 EF_AMDGPU_MACH_R600_RESERVED_FIRST = 0x011, 734 EF_AMDGPU_MACH_R600_RESERVED_LAST = 0x01f, 735 736 // First/last R600-based processors. 737 EF_AMDGPU_MACH_R600_FIRST = EF_AMDGPU_MACH_R600_R600, 738 EF_AMDGPU_MACH_R600_LAST = EF_AMDGPU_MACH_R600_TURKS, 739 740 // AMDGCN-based processors. 741 EF_AMDGPU_MACH_AMDGCN_GFX600 = 0x020, 742 EF_AMDGPU_MACH_AMDGCN_GFX601 = 0x021, 743 EF_AMDGPU_MACH_AMDGCN_GFX700 = 0x022, 744 EF_AMDGPU_MACH_AMDGCN_GFX701 = 0x023, 745 EF_AMDGPU_MACH_AMDGCN_GFX702 = 0x024, 746 EF_AMDGPU_MACH_AMDGCN_GFX703 = 0x025, 747 EF_AMDGPU_MACH_AMDGCN_GFX704 = 0x026, 748 EF_AMDGPU_MACH_AMDGCN_RESERVED_0X27 = 0x027, 749 EF_AMDGPU_MACH_AMDGCN_GFX801 = 0x028, 750 EF_AMDGPU_MACH_AMDGCN_GFX802 = 0x029, 751 EF_AMDGPU_MACH_AMDGCN_GFX803 = 0x02a, 752 EF_AMDGPU_MACH_AMDGCN_GFX810 = 0x02b, 753 EF_AMDGPU_MACH_AMDGCN_GFX900 = 0x02c, 754 EF_AMDGPU_MACH_AMDGCN_GFX902 = 0x02d, 755 EF_AMDGPU_MACH_AMDGCN_GFX904 = 0x02e, 756 EF_AMDGPU_MACH_AMDGCN_GFX906 = 0x02f, 757 EF_AMDGPU_MACH_AMDGCN_GFX908 = 0x030, 758 EF_AMDGPU_MACH_AMDGCN_GFX909 = 0x031, 759 EF_AMDGPU_MACH_AMDGCN_GFX90C = 0x032, 760 EF_AMDGPU_MACH_AMDGCN_GFX1010 = 0x033, 761 EF_AMDGPU_MACH_AMDGCN_GFX1011 = 0x034, 762 EF_AMDGPU_MACH_AMDGCN_GFX1012 = 0x035, 763 EF_AMDGPU_MACH_AMDGCN_GFX1030 = 0x036, 764 EF_AMDGPU_MACH_AMDGCN_GFX1031 = 0x037, 765 EF_AMDGPU_MACH_AMDGCN_GFX1032 = 0x038, 766 EF_AMDGPU_MACH_AMDGCN_GFX1033 = 0x039, 767 EF_AMDGPU_MACH_AMDGCN_GFX602 = 0x03a, 768 EF_AMDGPU_MACH_AMDGCN_GFX705 = 0x03b, 769 EF_AMDGPU_MACH_AMDGCN_GFX805 = 0x03c, 770 EF_AMDGPU_MACH_AMDGCN_GFX1035 = 0x03d, 771 EF_AMDGPU_MACH_AMDGCN_GFX1034 = 0x03e, 772 EF_AMDGPU_MACH_AMDGCN_GFX90A = 0x03f, 773 EF_AMDGPU_MACH_AMDGCN_GFX940 = 0x040, 774 EF_AMDGPU_MACH_AMDGCN_GFX1100 = 0x041, 775 EF_AMDGPU_MACH_AMDGCN_GFX1013 = 0x042, 776 EF_AMDGPU_MACH_AMDGCN_GFX1150 = 0x043, 777 EF_AMDGPU_MACH_AMDGCN_GFX1103 = 0x044, 778 EF_AMDGPU_MACH_AMDGCN_GFX1036 = 0x045, 779 EF_AMDGPU_MACH_AMDGCN_GFX1101 = 0x046, 780 EF_AMDGPU_MACH_AMDGCN_GFX1102 = 0x047, 781 EF_AMDGPU_MACH_AMDGCN_RESERVED_0X48 = 0x048, 782 EF_AMDGPU_MACH_AMDGCN_RESERVED_0X49 = 0x049, 783 EF_AMDGPU_MACH_AMDGCN_GFX1151 = 0x04a, 784 EF_AMDGPU_MACH_AMDGCN_GFX941 = 0x04b, 785 EF_AMDGPU_MACH_AMDGCN_GFX942 = 0x04c, 786 787 // First/last AMDGCN-based processors. 788 EF_AMDGPU_MACH_AMDGCN_FIRST = EF_AMDGPU_MACH_AMDGCN_GFX600, 789 EF_AMDGPU_MACH_AMDGCN_LAST = EF_AMDGPU_MACH_AMDGCN_GFX942, 790 791 // Indicates if the "xnack" target feature is enabled for all code contained 792 // in the object. 793 // 794 // Only valid for ELFOSABI_AMDGPU_HSA and ELFABIVERSION_AMDGPU_HSA_V2. 795 EF_AMDGPU_FEATURE_XNACK_V2 = 0x01, 796 // Indicates if the trap handler is enabled for all code contained 797 // in the object. 798 // 799 // Only valid for ELFOSABI_AMDGPU_HSA and ELFABIVERSION_AMDGPU_HSA_V2. 800 EF_AMDGPU_FEATURE_TRAP_HANDLER_V2 = 0x02, 801 802 // Indicates if the "xnack" target feature is enabled for all code contained 803 // in the object. 804 // 805 // Only valid for ELFOSABI_AMDGPU_HSA and ELFABIVERSION_AMDGPU_HSA_V3. 806 EF_AMDGPU_FEATURE_XNACK_V3 = 0x100, 807 // Indicates if the "sramecc" target feature is enabled for all code 808 // contained in the object. 809 // 810 // Only valid for ELFOSABI_AMDGPU_HSA and ELFABIVERSION_AMDGPU_HSA_V3. 811 EF_AMDGPU_FEATURE_SRAMECC_V3 = 0x200, 812 813 // XNACK selection mask for EF_AMDGPU_FEATURE_XNACK_* values. 814 // 815 // Only valid for ELFOSABI_AMDGPU_HSA and ELFABIVERSION_AMDGPU_HSA_V4. 816 EF_AMDGPU_FEATURE_XNACK_V4 = 0x300, 817 // XNACK is not supported. 818 EF_AMDGPU_FEATURE_XNACK_UNSUPPORTED_V4 = 0x000, 819 // XNACK is any/default/unspecified. 820 EF_AMDGPU_FEATURE_XNACK_ANY_V4 = 0x100, 821 // XNACK is off. 822 EF_AMDGPU_FEATURE_XNACK_OFF_V4 = 0x200, 823 // XNACK is on. 824 EF_AMDGPU_FEATURE_XNACK_ON_V4 = 0x300, 825 826 // SRAMECC selection mask for EF_AMDGPU_FEATURE_SRAMECC_* values. 827 // 828 // Only valid for ELFOSABI_AMDGPU_HSA and ELFABIVERSION_AMDGPU_HSA_V4. 829 EF_AMDGPU_FEATURE_SRAMECC_V4 = 0xc00, 830 // SRAMECC is not supported. 831 EF_AMDGPU_FEATURE_SRAMECC_UNSUPPORTED_V4 = 0x000, 832 // SRAMECC is any/default/unspecified. 833 EF_AMDGPU_FEATURE_SRAMECC_ANY_V4 = 0x400, 834 // SRAMECC is off. 835 EF_AMDGPU_FEATURE_SRAMECC_OFF_V4 = 0x800, 836 // SRAMECC is on. 837 EF_AMDGPU_FEATURE_SRAMECC_ON_V4 = 0xc00, 838 }; 839 840 // ELF Relocation types for AMDGPU 841 enum { 842 #include "ELFRelocs/AMDGPU.def" 843 }; 844 845 // ELF Relocation types for BPF 846 enum { 847 #include "ELFRelocs/BPF.def" 848 }; 849 850 // ELF Relocation types for M68k 851 enum { 852 #include "ELFRelocs/M68k.def" 853 }; 854 855 // MSP430 specific e_flags 856 enum : unsigned { 857 EF_MSP430_MACH_MSP430x11 = 11, 858 EF_MSP430_MACH_MSP430x11x1 = 110, 859 EF_MSP430_MACH_MSP430x12 = 12, 860 EF_MSP430_MACH_MSP430x13 = 13, 861 EF_MSP430_MACH_MSP430x14 = 14, 862 EF_MSP430_MACH_MSP430x15 = 15, 863 EF_MSP430_MACH_MSP430x16 = 16, 864 EF_MSP430_MACH_MSP430x20 = 20, 865 EF_MSP430_MACH_MSP430x22 = 22, 866 EF_MSP430_MACH_MSP430x23 = 23, 867 EF_MSP430_MACH_MSP430x24 = 24, 868 EF_MSP430_MACH_MSP430x26 = 26, 869 EF_MSP430_MACH_MSP430x31 = 31, 870 EF_MSP430_MACH_MSP430x32 = 32, 871 EF_MSP430_MACH_MSP430x33 = 33, 872 EF_MSP430_MACH_MSP430x41 = 41, 873 EF_MSP430_MACH_MSP430x42 = 42, 874 EF_MSP430_MACH_MSP430x43 = 43, 875 EF_MSP430_MACH_MSP430x44 = 44, 876 EF_MSP430_MACH_MSP430X = 45, 877 EF_MSP430_MACH_MSP430x46 = 46, 878 EF_MSP430_MACH_MSP430x47 = 47, 879 EF_MSP430_MACH_MSP430x54 = 54, 880 }; 881 882 // ELF Relocation types for MSP430 883 enum { 884 #include "ELFRelocs/MSP430.def" 885 }; 886 887 // ELF Relocation type for VE. 888 enum { 889 #include "ELFRelocs/VE.def" 890 }; 891 892 // CSKY Specific e_flags 893 enum : unsigned { 894 EF_CSKY_801 = 0xa, 895 EF_CSKY_802 = 0x10, 896 EF_CSKY_803 = 0x9, 897 EF_CSKY_805 = 0x11, 898 EF_CSKY_807 = 0x6, 899 EF_CSKY_810 = 0x8, 900 EF_CSKY_860 = 0xb, 901 EF_CSKY_800 = 0x1f, 902 EF_CSKY_FLOAT = 0x2000, 903 EF_CSKY_DSP = 0x4000, 904 EF_CSKY_ABIV2 = 0x20000000, 905 EF_CSKY_EFV1 = 0x1000000, 906 EF_CSKY_EFV2 = 0x2000000, 907 EF_CSKY_EFV3 = 0x3000000 908 }; 909 910 // ELF Relocation types for CSKY 911 enum { 912 #include "ELFRelocs/CSKY.def" 913 }; 914 915 // LoongArch Specific e_flags 916 enum : unsigned { 917 // Definitions from LoongArch ELF psABI v2.01. 918 // Reference: https://github.com/loongson/LoongArch-Documentation 919 // (commit hash 296de4def055c871809068e0816325a4ac04eb12) 920 921 // Base ABI Modifiers 922 EF_LOONGARCH_ABI_SOFT_FLOAT = 0x1, 923 EF_LOONGARCH_ABI_SINGLE_FLOAT = 0x2, 924 EF_LOONGARCH_ABI_DOUBLE_FLOAT = 0x3, 925 EF_LOONGARCH_ABI_MODIFIER_MASK = 0x7, 926 927 // Object file ABI versions 928 EF_LOONGARCH_OBJABI_V0 = 0x0, 929 EF_LOONGARCH_OBJABI_V1 = 0x40, 930 EF_LOONGARCH_OBJABI_MASK = 0xC0, 931 }; 932 933 // ELF Relocation types for LoongArch 934 enum { 935 #include "ELFRelocs/LoongArch.def" 936 }; 937 938 // Xtensa specific e_flags 939 enum : unsigned { 940 // Four-bit Xtensa machine type mask. 941 EF_XTENSA_MACH = 0x0000000f, 942 // Various CPU types. 943 EF_XTENSA_MACH_NONE = 0x00000000, // A base Xtensa implementation 944 EF_XTENSA_XT_INSN = 0x00000100, 945 EF_XTENSA_XT_LIT = 0x00000200, 946 }; 947 948 // ELF Relocation types for Xtensa 949 enum { 950 #include "ELFRelocs/Xtensa.def" 951 }; 952 953 #undef ELF_RELOC 954 955 // Section header. 956 struct Elf32_Shdr { 957 Elf32_Word sh_name; // Section name (index into string table) 958 Elf32_Word sh_type; // Section type (SHT_*) 959 Elf32_Word sh_flags; // Section flags (SHF_*) 960 Elf32_Addr sh_addr; // Address where section is to be loaded 961 Elf32_Off sh_offset; // File offset of section data, in bytes 962 Elf32_Word sh_size; // Size of section, in bytes 963 Elf32_Word sh_link; // Section type-specific header table index link 964 Elf32_Word sh_info; // Section type-specific extra information 965 Elf32_Word sh_addralign; // Section address alignment 966 Elf32_Word sh_entsize; // Size of records contained within the section 967 }; 968 969 // Section header for ELF64 - same fields as ELF32, different types. 970 struct Elf64_Shdr { 971 Elf64_Word sh_name; 972 Elf64_Word sh_type; 973 Elf64_Xword sh_flags; 974 Elf64_Addr sh_addr; 975 Elf64_Off sh_offset; 976 Elf64_Xword sh_size; 977 Elf64_Word sh_link; 978 Elf64_Word sh_info; 979 Elf64_Xword sh_addralign; 980 Elf64_Xword sh_entsize; 981 }; 982 983 // Special section indices. 984 enum { 985 SHN_UNDEF = 0, // Undefined, missing, irrelevant, or meaningless 986 SHN_LORESERVE = 0xff00, // Lowest reserved index 987 SHN_LOPROC = 0xff00, // Lowest processor-specific index 988 SHN_HIPROC = 0xff1f, // Highest processor-specific index 989 SHN_LOOS = 0xff20, // Lowest operating system-specific index 990 SHN_HIOS = 0xff3f, // Highest operating system-specific index 991 SHN_ABS = 0xfff1, // Symbol has absolute value; does not need relocation 992 SHN_COMMON = 0xfff2, // FORTRAN COMMON or C external global variables 993 SHN_XINDEX = 0xffff, // Mark that the index is >= SHN_LORESERVE 994 SHN_HIRESERVE = 0xffff // Highest reserved index 995 }; 996 997 // Section types. 998 enum : unsigned { 999 SHT_NULL = 0, // No associated section (inactive entry). 1000 SHT_PROGBITS = 1, // Program-defined contents. 1001 SHT_SYMTAB = 2, // Symbol table. 1002 SHT_STRTAB = 3, // String table. 1003 SHT_RELA = 4, // Relocation entries; explicit addends. 1004 SHT_HASH = 5, // Symbol hash table. 1005 SHT_DYNAMIC = 6, // Information for dynamic linking. 1006 SHT_NOTE = 7, // Information about the file. 1007 SHT_NOBITS = 8, // Data occupies no space in the file. 1008 SHT_REL = 9, // Relocation entries; no explicit addends. 1009 SHT_SHLIB = 10, // Reserved. 1010 SHT_DYNSYM = 11, // Symbol table. 1011 SHT_INIT_ARRAY = 14, // Pointers to initialization functions. 1012 SHT_FINI_ARRAY = 15, // Pointers to termination functions. 1013 SHT_PREINIT_ARRAY = 16, // Pointers to pre-init functions. 1014 SHT_GROUP = 17, // Section group. 1015 SHT_SYMTAB_SHNDX = 18, // Indices for SHN_XINDEX entries. 1016 // Experimental support for SHT_RELR sections. For details, see proposal 1017 // at https://groups.google.com/forum/#!topic/generic-abi/bX460iggiKg 1018 SHT_RELR = 19, // Relocation entries; only offsets. 1019 SHT_LOOS = 0x60000000, // Lowest operating system-specific type. 1020 // Android packed relocation section types. 1021 // https://android.googlesource.com/platform/bionic/+/6f12bfece5dcc01325e0abba56a46b1bcf991c69/tools/relocation_packer/src/elf_file.cc#37 1022 SHT_ANDROID_REL = 0x60000001, 1023 SHT_ANDROID_RELA = 0x60000002, 1024 SHT_LLVM_ODRTAB = 0x6fff4c00, // LLVM ODR table. 1025 SHT_LLVM_LINKER_OPTIONS = 0x6fff4c01, // LLVM Linker Options. 1026 SHT_LLVM_ADDRSIG = 0x6fff4c03, // List of address-significant symbols 1027 // for safe ICF. 1028 SHT_LLVM_DEPENDENT_LIBRARIES = 1029 0x6fff4c04, // LLVM Dependent Library Specifiers. 1030 SHT_LLVM_SYMPART = 0x6fff4c05, // Symbol partition specification. 1031 SHT_LLVM_PART_EHDR = 0x6fff4c06, // ELF header for loadable partition. 1032 SHT_LLVM_PART_PHDR = 0x6fff4c07, // Phdrs for loadable partition. 1033 SHT_LLVM_BB_ADDR_MAP_V0 = 1034 0x6fff4c08, // LLVM Basic Block Address Map (old version kept for 1035 // backward-compatibility). 1036 SHT_LLVM_CALL_GRAPH_PROFILE = 0x6fff4c09, // LLVM Call Graph Profile. 1037 SHT_LLVM_BB_ADDR_MAP = 0x6fff4c0a, // LLVM Basic Block Address Map. 1038 SHT_LLVM_OFFLOADING = 0x6fff4c0b, // LLVM device offloading data. 1039 SHT_LLVM_LTO = 0x6fff4c0c, // .llvm.lto for fat LTO. 1040 // Android's experimental support for SHT_RELR sections. 1041 // https://android.googlesource.com/platform/bionic/+/b7feec74547f84559a1467aca02708ff61346d2a/libc/include/elf.h#512 1042 SHT_ANDROID_RELR = 0x6fffff00, // Relocation entries; only offsets. 1043 SHT_GNU_ATTRIBUTES = 0x6ffffff5, // Object attributes. 1044 SHT_GNU_HASH = 0x6ffffff6, // GNU-style hash table. 1045 SHT_GNU_verdef = 0x6ffffffd, // GNU version definitions. 1046 SHT_GNU_verneed = 0x6ffffffe, // GNU version references. 1047 SHT_GNU_versym = 0x6fffffff, // GNU symbol versions table. 1048 SHT_HIOS = 0x6fffffff, // Highest operating system-specific type. 1049 SHT_LOPROC = 0x70000000, // Lowest processor arch-specific type. 1050 // Fixme: All this is duplicated in MCSectionELF. Why?? 1051 // Exception Index table 1052 SHT_ARM_EXIDX = 0x70000001U, 1053 // BPABI DLL dynamic linking pre-emption map 1054 SHT_ARM_PREEMPTMAP = 0x70000002U, 1055 // Object file compatibility attributes 1056 SHT_ARM_ATTRIBUTES = 0x70000003U, 1057 SHT_ARM_DEBUGOVERLAY = 0x70000004U, 1058 SHT_ARM_OVERLAYSECTION = 0x70000005U, 1059 // Special aarch64-specific sections for MTE support, as described in: 1060 // https://github.com/ARM-software/abi-aa/blob/main/memtagabielf64/memtagabielf64.rst#7section-types 1061 SHT_AARCH64_MEMTAG_GLOBALS_STATIC = 0x70000007U, 1062 SHT_AARCH64_MEMTAG_GLOBALS_DYNAMIC = 0x70000008U, 1063 SHT_HEX_ORDERED = 0x70000000, // Link editor is to sort the entries in 1064 // this section based on their sizes 1065 SHT_X86_64_UNWIND = 0x70000001, // Unwind information 1066 1067 SHT_MIPS_REGINFO = 0x70000006, // Register usage information 1068 SHT_MIPS_OPTIONS = 0x7000000d, // General options 1069 SHT_MIPS_DWARF = 0x7000001e, // DWARF debugging section. 1070 SHT_MIPS_ABIFLAGS = 0x7000002a, // ABI information. 1071 1072 SHT_MSP430_ATTRIBUTES = 0x70000003U, 1073 1074 SHT_RISCV_ATTRIBUTES = 0x70000003U, 1075 1076 SHT_CSKY_ATTRIBUTES = 0x70000001U, 1077 1078 SHT_HIPROC = 0x7fffffff, // Highest processor arch-specific type. 1079 SHT_LOUSER = 0x80000000, // Lowest type reserved for applications. 1080 SHT_HIUSER = 0xffffffff // Highest type reserved for applications. 1081 }; 1082 1083 // Section flags. 1084 enum : unsigned { 1085 // Section data should be writable during execution. 1086 SHF_WRITE = 0x1, 1087 1088 // Section occupies memory during program execution. 1089 SHF_ALLOC = 0x2, 1090 1091 // Section contains executable machine instructions. 1092 SHF_EXECINSTR = 0x4, 1093 1094 // The data in this section may be merged. 1095 SHF_MERGE = 0x10, 1096 1097 // The data in this section is null-terminated strings. 1098 SHF_STRINGS = 0x20, 1099 1100 // A field in this section holds a section header table index. 1101 SHF_INFO_LINK = 0x40U, 1102 1103 // Adds special ordering requirements for link editors. 1104 SHF_LINK_ORDER = 0x80U, 1105 1106 // This section requires special OS-specific processing to avoid incorrect 1107 // behavior. 1108 SHF_OS_NONCONFORMING = 0x100U, 1109 1110 // This section is a member of a section group. 1111 SHF_GROUP = 0x200U, 1112 1113 // This section holds Thread-Local Storage. 1114 SHF_TLS = 0x400U, 1115 1116 // Identifies a section containing compressed data. 1117 SHF_COMPRESSED = 0x800U, 1118 1119 // This section should not be garbage collected by the linker. 1120 SHF_GNU_RETAIN = 0x200000, 1121 1122 // This section is excluded from the final executable or shared library. 1123 SHF_EXCLUDE = 0x80000000U, 1124 1125 // Start of target-specific flags. 1126 1127 SHF_MASKOS = 0x0ff00000, 1128 1129 // Solaris equivalent of SHF_GNU_RETAIN. 1130 SHF_SUNW_NODISCARD = 0x00100000, 1131 1132 // Bits indicating processor-specific flags. 1133 SHF_MASKPROC = 0xf0000000, 1134 1135 /// All sections with the "d" flag are grouped together by the linker to form 1136 /// the data section and the dp register is set to the start of the section by 1137 /// the boot code. 1138 XCORE_SHF_DP_SECTION = 0x10000000, 1139 1140 /// All sections with the "c" flag are grouped together by the linker to form 1141 /// the constant pool and the cp register is set to the start of the constant 1142 /// pool by the boot code. 1143 XCORE_SHF_CP_SECTION = 0x20000000, 1144 1145 // If an object file section does not have this flag set, then it may not hold 1146 // more than 2GB and can be freely referred to in objects using smaller code 1147 // models. Otherwise, only objects using larger code models can refer to them. 1148 // For example, a medium code model object can refer to data in a section that 1149 // sets this flag besides being able to refer to data in a section that does 1150 // not set it; likewise, a small code model object can refer only to code in a 1151 // section that does not set this flag. 1152 SHF_X86_64_LARGE = 0x10000000, 1153 1154 // All sections with the GPREL flag are grouped into a global data area 1155 // for faster accesses 1156 SHF_HEX_GPREL = 0x10000000, 1157 1158 // Section contains text/data which may be replicated in other sections. 1159 // Linker must retain only one copy. 1160 SHF_MIPS_NODUPES = 0x01000000, 1161 1162 // Linker must generate implicit hidden weak names. 1163 SHF_MIPS_NAMES = 0x02000000, 1164 1165 // Section data local to process. 1166 SHF_MIPS_LOCAL = 0x04000000, 1167 1168 // Do not strip this section. 1169 SHF_MIPS_NOSTRIP = 0x08000000, 1170 1171 // Section must be part of global data area. 1172 SHF_MIPS_GPREL = 0x10000000, 1173 1174 // This section should be merged. 1175 SHF_MIPS_MERGE = 0x20000000, 1176 1177 // Address size to be inferred from section entry size. 1178 SHF_MIPS_ADDR = 0x40000000, 1179 1180 // Section data is string data by default. 1181 SHF_MIPS_STRING = 0x80000000, 1182 1183 // Make code section unreadable when in execute-only mode 1184 SHF_ARM_PURECODE = 0x20000000 1185 }; 1186 1187 // Section Group Flags 1188 enum : unsigned { 1189 GRP_COMDAT = 0x1, 1190 GRP_MASKOS = 0x0ff00000, 1191 GRP_MASKPROC = 0xf0000000 1192 }; 1193 1194 // Symbol table entries for ELF32. 1195 struct Elf32_Sym { 1196 Elf32_Word st_name; // Symbol name (index into string table) 1197 Elf32_Addr st_value; // Value or address associated with the symbol 1198 Elf32_Word st_size; // Size of the symbol 1199 unsigned char st_info; // Symbol's type and binding attributes 1200 unsigned char st_other; // Must be zero; reserved 1201 Elf32_Half st_shndx; // Which section (header table index) it's defined in 1202 1203 // These accessors and mutators correspond to the ELF32_ST_BIND, 1204 // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification: 1205 unsigned char getBinding() const { return st_info >> 4; } 1206 unsigned char getType() const { return st_info & 0x0f; } 1207 void setBinding(unsigned char b) { setBindingAndType(b, getType()); } 1208 void setType(unsigned char t) { setBindingAndType(getBinding(), t); } 1209 void setBindingAndType(unsigned char b, unsigned char t) { 1210 st_info = (b << 4) + (t & 0x0f); 1211 } 1212 }; 1213 1214 // Symbol table entries for ELF64. 1215 struct Elf64_Sym { 1216 Elf64_Word st_name; // Symbol name (index into string table) 1217 unsigned char st_info; // Symbol's type and binding attributes 1218 unsigned char st_other; // Must be zero; reserved 1219 Elf64_Half st_shndx; // Which section (header tbl index) it's defined in 1220 Elf64_Addr st_value; // Value or address associated with the symbol 1221 Elf64_Xword st_size; // Size of the symbol 1222 1223 // These accessors and mutators are identical to those defined for ELF32 1224 // symbol table entries. 1225 unsigned char getBinding() const { return st_info >> 4; } 1226 unsigned char getType() const { return st_info & 0x0f; } 1227 void setBinding(unsigned char b) { setBindingAndType(b, getType()); } 1228 void setType(unsigned char t) { setBindingAndType(getBinding(), t); } 1229 void setBindingAndType(unsigned char b, unsigned char t) { 1230 st_info = (b << 4) + (t & 0x0f); 1231 } 1232 }; 1233 1234 // The size (in bytes) of symbol table entries. 1235 enum { 1236 SYMENTRY_SIZE32 = 16, // 32-bit symbol entry size 1237 SYMENTRY_SIZE64 = 24 // 64-bit symbol entry size. 1238 }; 1239 1240 // Symbol bindings. 1241 enum { 1242 STB_LOCAL = 0, // Local symbol, not visible outside obj file containing def 1243 STB_GLOBAL = 1, // Global symbol, visible to all object files being combined 1244 STB_WEAK = 2, // Weak symbol, like global but lower-precedence 1245 STB_GNU_UNIQUE = 10, 1246 STB_LOOS = 10, // Lowest operating system-specific binding type 1247 STB_HIOS = 12, // Highest operating system-specific binding type 1248 STB_LOPROC = 13, // Lowest processor-specific binding type 1249 STB_HIPROC = 15 // Highest processor-specific binding type 1250 }; 1251 1252 // Symbol types. 1253 enum { 1254 STT_NOTYPE = 0, // Symbol's type is not specified 1255 STT_OBJECT = 1, // Symbol is a data object (variable, array, etc.) 1256 STT_FUNC = 2, // Symbol is executable code (function, etc.) 1257 STT_SECTION = 3, // Symbol refers to a section 1258 STT_FILE = 4, // Local, absolute symbol that refers to a file 1259 STT_COMMON = 5, // An uninitialized common block 1260 STT_TLS = 6, // Thread local data object 1261 STT_GNU_IFUNC = 10, // GNU indirect function 1262 STT_LOOS = 10, // Lowest operating system-specific symbol type 1263 STT_HIOS = 12, // Highest operating system-specific symbol type 1264 STT_LOPROC = 13, // Lowest processor-specific symbol type 1265 STT_HIPROC = 15, // Highest processor-specific symbol type 1266 1267 // AMDGPU symbol types 1268 STT_AMDGPU_HSA_KERNEL = 10 1269 }; 1270 1271 enum { 1272 STV_DEFAULT = 0, // Visibility is specified by binding type 1273 STV_INTERNAL = 1, // Defined by processor supplements 1274 STV_HIDDEN = 2, // Not visible to other components 1275 STV_PROTECTED = 3 // Visible in other components but not preemptable 1276 }; 1277 1278 // Symbol number. 1279 enum { STN_UNDEF = 0 }; 1280 1281 // Special relocation symbols used in the MIPS64 ELF relocation entries 1282 enum { 1283 RSS_UNDEF = 0, // None 1284 RSS_GP = 1, // Value of gp 1285 RSS_GP0 = 2, // Value of gp used to create object being relocated 1286 RSS_LOC = 3 // Address of location being relocated 1287 }; 1288 1289 // Relocation entry, without explicit addend. 1290 struct Elf32_Rel { 1291 Elf32_Addr r_offset; // Location (file byte offset, or program virtual addr) 1292 Elf32_Word r_info; // Symbol table index and type of relocation to apply 1293 1294 // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE, 1295 // and ELF32_R_INFO macros defined in the ELF specification: 1296 Elf32_Word getSymbol() const { return (r_info >> 8); } 1297 unsigned char getType() const { return (unsigned char)(r_info & 0x0ff); } 1298 void setSymbol(Elf32_Word s) { setSymbolAndType(s, getType()); } 1299 void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); } 1300 void setSymbolAndType(Elf32_Word s, unsigned char t) { 1301 r_info = (s << 8) + t; 1302 } 1303 }; 1304 1305 // Relocation entry with explicit addend. 1306 struct Elf32_Rela { 1307 Elf32_Addr r_offset; // Location (file byte offset, or program virtual addr) 1308 Elf32_Word r_info; // Symbol table index and type of relocation to apply 1309 Elf32_Sword r_addend; // Compute value for relocatable field by adding this 1310 1311 // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE, 1312 // and ELF32_R_INFO macros defined in the ELF specification: 1313 Elf32_Word getSymbol() const { return (r_info >> 8); } 1314 unsigned char getType() const { return (unsigned char)(r_info & 0x0ff); } 1315 void setSymbol(Elf32_Word s) { setSymbolAndType(s, getType()); } 1316 void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); } 1317 void setSymbolAndType(Elf32_Word s, unsigned char t) { 1318 r_info = (s << 8) + t; 1319 } 1320 }; 1321 1322 // Relocation entry without explicit addend or info (relative relocations only). 1323 typedef Elf32_Word Elf32_Relr; // offset/bitmap for relative relocations 1324 1325 // Relocation entry, without explicit addend. 1326 struct Elf64_Rel { 1327 Elf64_Addr r_offset; // Location (file byte offset, or program virtual addr). 1328 Elf64_Xword r_info; // Symbol table index and type of relocation to apply. 1329 1330 // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE, 1331 // and ELF64_R_INFO macros defined in the ELF specification: 1332 Elf64_Word getSymbol() const { return (r_info >> 32); } 1333 Elf64_Word getType() const { return (Elf64_Word)(r_info & 0xffffffffL); } 1334 void setSymbol(Elf64_Word s) { setSymbolAndType(s, getType()); } 1335 void setType(Elf64_Word t) { setSymbolAndType(getSymbol(), t); } 1336 void setSymbolAndType(Elf64_Word s, Elf64_Word t) { 1337 r_info = ((Elf64_Xword)s << 32) + (t & 0xffffffffL); 1338 } 1339 }; 1340 1341 // Relocation entry with explicit addend. 1342 struct Elf64_Rela { 1343 Elf64_Addr r_offset; // Location (file byte offset, or program virtual addr). 1344 Elf64_Xword r_info; // Symbol table index and type of relocation to apply. 1345 Elf64_Sxword r_addend; // Compute value for relocatable field by adding this. 1346 1347 // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE, 1348 // and ELF64_R_INFO macros defined in the ELF specification: 1349 Elf64_Word getSymbol() const { return (r_info >> 32); } 1350 Elf64_Word getType() const { return (Elf64_Word)(r_info & 0xffffffffL); } 1351 void setSymbol(Elf64_Word s) { setSymbolAndType(s, getType()); } 1352 void setType(Elf64_Word t) { setSymbolAndType(getSymbol(), t); } 1353 void setSymbolAndType(Elf64_Word s, Elf64_Word t) { 1354 r_info = ((Elf64_Xword)s << 32) + (t & 0xffffffffL); 1355 } 1356 }; 1357 1358 // Relocation entry without explicit addend or info (relative relocations only). 1359 typedef Elf64_Xword Elf64_Relr; // offset/bitmap for relative relocations 1360 1361 // Program header for ELF32. 1362 struct Elf32_Phdr { 1363 Elf32_Word p_type; // Type of segment 1364 Elf32_Off p_offset; // File offset where segment is located, in bytes 1365 Elf32_Addr p_vaddr; // Virtual address of beginning of segment 1366 Elf32_Addr p_paddr; // Physical address of beginning of segment (OS-specific) 1367 Elf32_Word p_filesz; // Num. of bytes in file image of segment (may be zero) 1368 Elf32_Word p_memsz; // Num. of bytes in mem image of segment (may be zero) 1369 Elf32_Word p_flags; // Segment flags 1370 Elf32_Word p_align; // Segment alignment constraint 1371 }; 1372 1373 // Program header for ELF64. 1374 struct Elf64_Phdr { 1375 Elf64_Word p_type; // Type of segment 1376 Elf64_Word p_flags; // Segment flags 1377 Elf64_Off p_offset; // File offset where segment is located, in bytes 1378 Elf64_Addr p_vaddr; // Virtual address of beginning of segment 1379 Elf64_Addr p_paddr; // Physical addr of beginning of segment (OS-specific) 1380 Elf64_Xword p_filesz; // Num. of bytes in file image of segment (may be zero) 1381 Elf64_Xword p_memsz; // Num. of bytes in mem image of segment (may be zero) 1382 Elf64_Xword p_align; // Segment alignment constraint 1383 }; 1384 1385 // Segment types. 1386 enum { 1387 PT_NULL = 0, // Unused segment. 1388 PT_LOAD = 1, // Loadable segment. 1389 PT_DYNAMIC = 2, // Dynamic linking information. 1390 PT_INTERP = 3, // Interpreter pathname. 1391 PT_NOTE = 4, // Auxiliary information. 1392 PT_SHLIB = 5, // Reserved. 1393 PT_PHDR = 6, // The program header table itself. 1394 PT_TLS = 7, // The thread-local storage template. 1395 PT_LOOS = 0x60000000, // Lowest operating system-specific pt entry type. 1396 PT_HIOS = 0x6fffffff, // Highest operating system-specific pt entry type. 1397 PT_LOPROC = 0x70000000, // Lowest processor-specific program hdr entry type. 1398 PT_HIPROC = 0x7fffffff, // Highest processor-specific program hdr entry type. 1399 1400 // x86-64 program header types. 1401 // These all contain stack unwind tables. 1402 PT_GNU_EH_FRAME = 0x6474e550, 1403 PT_SUNW_EH_FRAME = 0x6474e550, 1404 PT_SUNW_UNWIND = 0x6464e550, 1405 1406 PT_GNU_STACK = 0x6474e551, // Indicates stack executability. 1407 PT_GNU_RELRO = 0x6474e552, // Read-only after relocation. 1408 PT_GNU_PROPERTY = 0x6474e553, // .note.gnu.property notes sections. 1409 1410 PT_OPENBSD_MUTABLE = 0x65a3dbe5, // Like bss, but not immutable. 1411 PT_OPENBSD_RANDOMIZE = 0x65a3dbe6, // Fill with random data. 1412 PT_OPENBSD_WXNEEDED = 0x65a3dbe7, // Program does W^X violations. 1413 PT_OPENBSD_NOBTCFI = 0x65a3dbe8, // Do not enforce branch target CFI. 1414 PT_OPENBSD_BOOTDATA = 0x65a41be6, // Section for boot arguments. 1415 1416 // ARM program header types. 1417 PT_ARM_ARCHEXT = 0x70000000, // Platform architecture compatibility info 1418 // These all contain stack unwind tables. 1419 PT_ARM_EXIDX = 0x70000001, 1420 PT_ARM_UNWIND = 0x70000001, 1421 // MTE memory tag segment type 1422 PT_AARCH64_MEMTAG_MTE = 0x70000002, 1423 1424 // MIPS program header types. 1425 PT_MIPS_REGINFO = 0x70000000, // Register usage information. 1426 PT_MIPS_RTPROC = 0x70000001, // Runtime procedure table. 1427 PT_MIPS_OPTIONS = 0x70000002, // Options segment. 1428 PT_MIPS_ABIFLAGS = 0x70000003, // Abiflags segment. 1429 1430 // RISCV program header types. 1431 PT_RISCV_ATTRIBUTES = 0x70000003, 1432 }; 1433 1434 // Segment flag bits. 1435 enum : unsigned { 1436 PF_X = 1, // Execute 1437 PF_W = 2, // Write 1438 PF_R = 4, // Read 1439 PF_MASKOS = 0x0ff00000, // Bits for operating system-specific semantics. 1440 PF_MASKPROC = 0xf0000000 // Bits for processor-specific semantics. 1441 }; 1442 1443 // Dynamic table entry for ELF32. 1444 struct Elf32_Dyn { 1445 Elf32_Sword d_tag; // Type of dynamic table entry. 1446 union { 1447 Elf32_Word d_val; // Integer value of entry. 1448 Elf32_Addr d_ptr; // Pointer value of entry. 1449 } d_un; 1450 }; 1451 1452 // Dynamic table entry for ELF64. 1453 struct Elf64_Dyn { 1454 Elf64_Sxword d_tag; // Type of dynamic table entry. 1455 union { 1456 Elf64_Xword d_val; // Integer value of entry. 1457 Elf64_Addr d_ptr; // Pointer value of entry. 1458 } d_un; 1459 }; 1460 1461 // Dynamic table entry tags. 1462 enum { 1463 #define DYNAMIC_TAG(name, value) DT_##name = value, 1464 #include "DynamicTags.def" 1465 #undef DYNAMIC_TAG 1466 }; 1467 1468 // DT_FLAGS values. 1469 enum { 1470 DF_ORIGIN = 0x01, // The object may reference $ORIGIN. 1471 DF_SYMBOLIC = 0x02, // Search the shared lib before searching the exe. 1472 DF_TEXTREL = 0x04, // Relocations may modify a non-writable segment. 1473 DF_BIND_NOW = 0x08, // Process all relocations on load. 1474 DF_STATIC_TLS = 0x10 // Reject attempts to load dynamically. 1475 }; 1476 1477 // State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 entry. 1478 enum { 1479 DF_1_NOW = 0x00000001, // Set RTLD_NOW for this object. 1480 DF_1_GLOBAL = 0x00000002, // Set RTLD_GLOBAL for this object. 1481 DF_1_GROUP = 0x00000004, // Set RTLD_GROUP for this object. 1482 DF_1_NODELETE = 0x00000008, // Set RTLD_NODELETE for this object. 1483 DF_1_LOADFLTR = 0x00000010, // Trigger filtee loading at runtime. 1484 DF_1_INITFIRST = 0x00000020, // Set RTLD_INITFIRST for this object. 1485 DF_1_NOOPEN = 0x00000040, // Set RTLD_NOOPEN for this object. 1486 DF_1_ORIGIN = 0x00000080, // $ORIGIN must be handled. 1487 DF_1_DIRECT = 0x00000100, // Direct binding enabled. 1488 DF_1_TRANS = 0x00000200, 1489 DF_1_INTERPOSE = 0x00000400, // Object is used to interpose. 1490 DF_1_NODEFLIB = 0x00000800, // Ignore default lib search path. 1491 DF_1_NODUMP = 0x00001000, // Object can't be dldump'ed. 1492 DF_1_CONFALT = 0x00002000, // Configuration alternative created. 1493 DF_1_ENDFILTEE = 0x00004000, // Filtee terminates filters search. 1494 DF_1_DISPRELDNE = 0x00008000, // Disp reloc applied at build time. 1495 DF_1_DISPRELPND = 0x00010000, // Disp reloc applied at run-time. 1496 DF_1_NODIRECT = 0x00020000, // Object has no-direct binding. 1497 DF_1_IGNMULDEF = 0x00040000, 1498 DF_1_NOKSYMS = 0x00080000, 1499 DF_1_NOHDR = 0x00100000, 1500 DF_1_EDITED = 0x00200000, // Object is modified after built. 1501 DF_1_NORELOC = 0x00400000, 1502 DF_1_SYMINTPOSE = 0x00800000, // Object has individual interposers. 1503 DF_1_GLOBAUDIT = 0x01000000, // Global auditing required. 1504 DF_1_SINGLETON = 0x02000000, // Singleton symbols are used. 1505 DF_1_PIE = 0x08000000, // Object is a position-independent executable. 1506 }; 1507 1508 // DT_MIPS_FLAGS values. 1509 enum { 1510 RHF_NONE = 0x00000000, // No flags. 1511 RHF_QUICKSTART = 0x00000001, // Uses shortcut pointers. 1512 RHF_NOTPOT = 0x00000002, // Hash size is not a power of two. 1513 RHS_NO_LIBRARY_REPLACEMENT = 0x00000004, // Ignore LD_LIBRARY_PATH. 1514 RHF_NO_MOVE = 0x00000008, // DSO address may not be relocated. 1515 RHF_SGI_ONLY = 0x00000010, // SGI specific features. 1516 RHF_GUARANTEE_INIT = 0x00000020, // Guarantee that .init will finish 1517 // executing before any non-init 1518 // code in DSO is called. 1519 RHF_DELTA_C_PLUS_PLUS = 0x00000040, // Contains Delta C++ code. 1520 RHF_GUARANTEE_START_INIT = 0x00000080, // Guarantee that .init will start 1521 // executing before any non-init 1522 // code in DSO is called. 1523 RHF_PIXIE = 0x00000100, // Generated by pixie. 1524 RHF_DEFAULT_DELAY_LOAD = 0x00000200, // Delay-load DSO by default. 1525 RHF_REQUICKSTART = 0x00000400, // Object may be requickstarted 1526 RHF_REQUICKSTARTED = 0x00000800, // Object has been requickstarted 1527 RHF_CORD = 0x00001000, // Generated by cord. 1528 RHF_NO_UNRES_UNDEF = 0x00002000, // Object contains no unresolved 1529 // undef symbols. 1530 RHF_RLD_ORDER_SAFE = 0x00004000 // Symbol table is in a safe order. 1531 }; 1532 1533 // ElfXX_VerDef structure version (GNU versioning) 1534 enum { VER_DEF_NONE = 0, VER_DEF_CURRENT = 1 }; 1535 1536 // VerDef Flags (ElfXX_VerDef::vd_flags) 1537 enum { VER_FLG_BASE = 0x1, VER_FLG_WEAK = 0x2, VER_FLG_INFO = 0x4 }; 1538 1539 // Special constants for the version table. (SHT_GNU_versym/.gnu.version) 1540 enum { 1541 VER_NDX_LOCAL = 0, // Unversioned local symbol 1542 VER_NDX_GLOBAL = 1, // Unversioned global symbol 1543 VERSYM_VERSION = 0x7fff, // Version Index mask 1544 VERSYM_HIDDEN = 0x8000 // Hidden bit (non-default version) 1545 }; 1546 1547 // ElfXX_VerNeed structure version (GNU versioning) 1548 enum { VER_NEED_NONE = 0, VER_NEED_CURRENT = 1 }; 1549 1550 // SHT_NOTE section types. 1551 1552 // Generic note types. 1553 enum : unsigned { 1554 NT_VERSION = 1, 1555 NT_ARCH = 2, 1556 NT_GNU_BUILD_ATTRIBUTE_OPEN = 0x100, 1557 NT_GNU_BUILD_ATTRIBUTE_FUNC = 0x101, 1558 }; 1559 1560 // Core note types. 1561 enum : unsigned { 1562 NT_PRSTATUS = 1, 1563 NT_FPREGSET = 2, 1564 NT_PRPSINFO = 3, 1565 NT_TASKSTRUCT = 4, 1566 NT_AUXV = 6, 1567 NT_PSTATUS = 10, 1568 NT_FPREGS = 12, 1569 NT_PSINFO = 13, 1570 NT_LWPSTATUS = 16, 1571 NT_LWPSINFO = 17, 1572 NT_WIN32PSTATUS = 18, 1573 1574 NT_PPC_VMX = 0x100, 1575 NT_PPC_VSX = 0x102, 1576 NT_PPC_TAR = 0x103, 1577 NT_PPC_PPR = 0x104, 1578 NT_PPC_DSCR = 0x105, 1579 NT_PPC_EBB = 0x106, 1580 NT_PPC_PMU = 0x107, 1581 NT_PPC_TM_CGPR = 0x108, 1582 NT_PPC_TM_CFPR = 0x109, 1583 NT_PPC_TM_CVMX = 0x10a, 1584 NT_PPC_TM_CVSX = 0x10b, 1585 NT_PPC_TM_SPR = 0x10c, 1586 NT_PPC_TM_CTAR = 0x10d, 1587 NT_PPC_TM_CPPR = 0x10e, 1588 NT_PPC_TM_CDSCR = 0x10f, 1589 1590 NT_386_TLS = 0x200, 1591 NT_386_IOPERM = 0x201, 1592 NT_X86_XSTATE = 0x202, 1593 1594 NT_S390_HIGH_GPRS = 0x300, 1595 NT_S390_TIMER = 0x301, 1596 NT_S390_TODCMP = 0x302, 1597 NT_S390_TODPREG = 0x303, 1598 NT_S390_CTRS = 0x304, 1599 NT_S390_PREFIX = 0x305, 1600 NT_S390_LAST_BREAK = 0x306, 1601 NT_S390_SYSTEM_CALL = 0x307, 1602 NT_S390_TDB = 0x308, 1603 NT_S390_VXRS_LOW = 0x309, 1604 NT_S390_VXRS_HIGH = 0x30a, 1605 NT_S390_GS_CB = 0x30b, 1606 NT_S390_GS_BC = 0x30c, 1607 1608 NT_ARM_VFP = 0x400, 1609 NT_ARM_TLS = 0x401, 1610 NT_ARM_HW_BREAK = 0x402, 1611 NT_ARM_HW_WATCH = 0x403, 1612 NT_ARM_SVE = 0x405, 1613 NT_ARM_PAC_MASK = 0x406, 1614 NT_ARM_SSVE = 0x40b, 1615 NT_ARM_ZA = 0x40c, 1616 NT_ARM_ZT = 0x40d, 1617 1618 NT_FILE = 0x46494c45, 1619 NT_PRXFPREG = 0x46e62b7f, 1620 NT_SIGINFO = 0x53494749, 1621 }; 1622 1623 // LLVM-specific notes. 1624 enum { 1625 NT_LLVM_HWASAN_GLOBALS = 3, 1626 }; 1627 1628 // GNU note types. 1629 enum { 1630 NT_GNU_ABI_TAG = 1, 1631 NT_GNU_HWCAP = 2, 1632 NT_GNU_BUILD_ID = 3, 1633 NT_GNU_GOLD_VERSION = 4, 1634 NT_GNU_PROPERTY_TYPE_0 = 5, 1635 FDO_PACKAGING_METADATA = 0xcafe1a7e, 1636 }; 1637 1638 // Android note types. 1639 enum { 1640 NT_ANDROID_TYPE_IDENT = 1, 1641 NT_ANDROID_TYPE_KUSER = 3, 1642 NT_ANDROID_TYPE_MEMTAG = 4, 1643 }; 1644 1645 // Memory tagging values used in NT_ANDROID_TYPE_MEMTAG notes. 1646 enum { 1647 // Enumeration to determine the tagging mode. In Android-land, 'SYNC' means 1648 // running all threads in MTE Synchronous mode, and 'ASYNC' means to use the 1649 // kernels auto-upgrade feature to allow for either MTE Asynchronous, 1650 // Asymmetric, or Synchronous mode. This allows silicon vendors to specify, on 1651 // a per-cpu basis what 'ASYNC' should mean. Generally, the expectation is 1652 // "pick the most precise mode that's very fast". 1653 NT_MEMTAG_LEVEL_NONE = 0, 1654 NT_MEMTAG_LEVEL_ASYNC = 1, 1655 NT_MEMTAG_LEVEL_SYNC = 2, 1656 NT_MEMTAG_LEVEL_MASK = 3, 1657 // Bits indicating whether the loader should prepare for MTE to be enabled on 1658 // the heap and/or stack. 1659 NT_MEMTAG_HEAP = 4, 1660 NT_MEMTAG_STACK = 8, 1661 }; 1662 1663 // Property types used in GNU_PROPERTY_TYPE_0 notes. 1664 enum : unsigned { 1665 GNU_PROPERTY_STACK_SIZE = 1, 1666 GNU_PROPERTY_NO_COPY_ON_PROTECTED = 2, 1667 GNU_PROPERTY_AARCH64_FEATURE_1_AND = 0xc0000000, 1668 GNU_PROPERTY_X86_FEATURE_1_AND = 0xc0000002, 1669 1670 GNU_PROPERTY_X86_UINT32_OR_LO = 0xc0008000, 1671 GNU_PROPERTY_X86_FEATURE_2_NEEDED = GNU_PROPERTY_X86_UINT32_OR_LO + 1, 1672 GNU_PROPERTY_X86_ISA_1_NEEDED = GNU_PROPERTY_X86_UINT32_OR_LO + 2, 1673 1674 GNU_PROPERTY_X86_UINT32_OR_AND_LO = 0xc0010000, 1675 GNU_PROPERTY_X86_FEATURE_2_USED = GNU_PROPERTY_X86_UINT32_OR_AND_LO + 1, 1676 GNU_PROPERTY_X86_ISA_1_USED = GNU_PROPERTY_X86_UINT32_OR_AND_LO + 2, 1677 }; 1678 1679 // aarch64 processor feature bits. 1680 enum : unsigned { 1681 GNU_PROPERTY_AARCH64_FEATURE_1_BTI = 1 << 0, 1682 GNU_PROPERTY_AARCH64_FEATURE_1_PAC = 1 << 1, 1683 }; 1684 1685 // x86 processor feature bits. 1686 enum : unsigned { 1687 GNU_PROPERTY_X86_FEATURE_1_IBT = 1 << 0, 1688 GNU_PROPERTY_X86_FEATURE_1_SHSTK = 1 << 1, 1689 1690 GNU_PROPERTY_X86_FEATURE_2_X86 = 1 << 0, 1691 GNU_PROPERTY_X86_FEATURE_2_X87 = 1 << 1, 1692 GNU_PROPERTY_X86_FEATURE_2_MMX = 1 << 2, 1693 GNU_PROPERTY_X86_FEATURE_2_XMM = 1 << 3, 1694 GNU_PROPERTY_X86_FEATURE_2_YMM = 1 << 4, 1695 GNU_PROPERTY_X86_FEATURE_2_ZMM = 1 << 5, 1696 GNU_PROPERTY_X86_FEATURE_2_FXSR = 1 << 6, 1697 GNU_PROPERTY_X86_FEATURE_2_XSAVE = 1 << 7, 1698 GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT = 1 << 8, 1699 GNU_PROPERTY_X86_FEATURE_2_XSAVEC = 1 << 9, 1700 1701 GNU_PROPERTY_X86_ISA_1_BASELINE = 1 << 0, 1702 GNU_PROPERTY_X86_ISA_1_V2 = 1 << 1, 1703 GNU_PROPERTY_X86_ISA_1_V3 = 1 << 2, 1704 GNU_PROPERTY_X86_ISA_1_V4 = 1 << 3, 1705 }; 1706 1707 // FreeBSD note types. 1708 enum { 1709 NT_FREEBSD_ABI_TAG = 1, 1710 NT_FREEBSD_NOINIT_TAG = 2, 1711 NT_FREEBSD_ARCH_TAG = 3, 1712 NT_FREEBSD_FEATURE_CTL = 4, 1713 }; 1714 1715 // NT_FREEBSD_FEATURE_CTL values (see FreeBSD's sys/sys/elf_common.h). 1716 enum { 1717 NT_FREEBSD_FCTL_ASLR_DISABLE = 0x00000001, 1718 NT_FREEBSD_FCTL_PROTMAX_DISABLE = 0x00000002, 1719 NT_FREEBSD_FCTL_STKGAP_DISABLE = 0x00000004, 1720 NT_FREEBSD_FCTL_WXNEEDED = 0x00000008, 1721 NT_FREEBSD_FCTL_LA48 = 0x00000010, 1722 NT_FREEBSD_FCTL_ASG_DISABLE = 0x00000020, 1723 }; 1724 1725 // FreeBSD core note types. 1726 enum { 1727 NT_FREEBSD_THRMISC = 7, 1728 NT_FREEBSD_PROCSTAT_PROC = 8, 1729 NT_FREEBSD_PROCSTAT_FILES = 9, 1730 NT_FREEBSD_PROCSTAT_VMMAP = 10, 1731 NT_FREEBSD_PROCSTAT_GROUPS = 11, 1732 NT_FREEBSD_PROCSTAT_UMASK = 12, 1733 NT_FREEBSD_PROCSTAT_RLIMIT = 13, 1734 NT_FREEBSD_PROCSTAT_OSREL = 14, 1735 NT_FREEBSD_PROCSTAT_PSSTRINGS = 15, 1736 NT_FREEBSD_PROCSTAT_AUXV = 16, 1737 }; 1738 1739 // NetBSD core note types. 1740 enum { 1741 NT_NETBSDCORE_PROCINFO = 1, 1742 NT_NETBSDCORE_AUXV = 2, 1743 NT_NETBSDCORE_LWPSTATUS = 24, 1744 }; 1745 1746 // OpenBSD core note types. 1747 enum { 1748 NT_OPENBSD_PROCINFO = 10, 1749 NT_OPENBSD_AUXV = 11, 1750 NT_OPENBSD_REGS = 20, 1751 NT_OPENBSD_FPREGS = 21, 1752 NT_OPENBSD_XFPREGS = 22, 1753 NT_OPENBSD_WCOOKIE = 23, 1754 }; 1755 1756 // AMDGPU-specific section indices. 1757 enum { 1758 SHN_AMDGPU_LDS = 0xff00, // Variable in LDS; symbol encoded like SHN_COMMON 1759 }; 1760 1761 // AMD vendor specific notes. (Code Object V2) 1762 enum { 1763 NT_AMD_HSA_CODE_OBJECT_VERSION = 1, 1764 NT_AMD_HSA_HSAIL = 2, 1765 NT_AMD_HSA_ISA_VERSION = 3, 1766 // Note types with values between 4 and 9 (inclusive) are reserved. 1767 NT_AMD_HSA_METADATA = 10, 1768 NT_AMD_HSA_ISA_NAME = 11, 1769 NT_AMD_PAL_METADATA = 12 1770 }; 1771 1772 // AMDGPU vendor specific notes. (Code Object V3) 1773 enum { 1774 // Note types with values between 0 and 31 (inclusive) are reserved. 1775 NT_AMDGPU_METADATA = 32 1776 }; 1777 1778 // LLVMOMPOFFLOAD specific notes. 1779 enum : unsigned { 1780 NT_LLVM_OPENMP_OFFLOAD_VERSION = 1, 1781 NT_LLVM_OPENMP_OFFLOAD_PRODUCER = 2, 1782 NT_LLVM_OPENMP_OFFLOAD_PRODUCER_VERSION = 3 1783 }; 1784 1785 enum { 1786 GNU_ABI_TAG_LINUX = 0, 1787 GNU_ABI_TAG_HURD = 1, 1788 GNU_ABI_TAG_SOLARIS = 2, 1789 GNU_ABI_TAG_FREEBSD = 3, 1790 GNU_ABI_TAG_NETBSD = 4, 1791 GNU_ABI_TAG_SYLLABLE = 5, 1792 GNU_ABI_TAG_NACL = 6, 1793 }; 1794 1795 constexpr const char *ELF_NOTE_GNU = "GNU"; 1796 1797 // Android packed relocation group flags. 1798 enum { 1799 RELOCATION_GROUPED_BY_INFO_FLAG = 1, 1800 RELOCATION_GROUPED_BY_OFFSET_DELTA_FLAG = 2, 1801 RELOCATION_GROUPED_BY_ADDEND_FLAG = 4, 1802 RELOCATION_GROUP_HAS_ADDEND_FLAG = 8, 1803 }; 1804 1805 // Compressed section header for ELF32. 1806 struct Elf32_Chdr { 1807 Elf32_Word ch_type; 1808 Elf32_Word ch_size; 1809 Elf32_Word ch_addralign; 1810 }; 1811 1812 // Compressed section header for ELF64. 1813 struct Elf64_Chdr { 1814 Elf64_Word ch_type; 1815 Elf64_Word ch_reserved; 1816 Elf64_Xword ch_size; 1817 Elf64_Xword ch_addralign; 1818 }; 1819 1820 // Note header for ELF32. 1821 struct Elf32_Nhdr { 1822 Elf32_Word n_namesz; 1823 Elf32_Word n_descsz; 1824 Elf32_Word n_type; 1825 }; 1826 1827 // Note header for ELF64. 1828 struct Elf64_Nhdr { 1829 Elf64_Word n_namesz; 1830 Elf64_Word n_descsz; 1831 Elf64_Word n_type; 1832 }; 1833 1834 // Legal values for ch_type field of compressed section header. 1835 enum { 1836 ELFCOMPRESS_ZLIB = 1, // ZLIB/DEFLATE algorithm. 1837 ELFCOMPRESS_ZSTD = 2, // Zstandard algorithm 1838 ELFCOMPRESS_LOOS = 0x60000000, // Start of OS-specific. 1839 ELFCOMPRESS_HIOS = 0x6fffffff, // End of OS-specific. 1840 ELFCOMPRESS_LOPROC = 0x70000000, // Start of processor-specific. 1841 ELFCOMPRESS_HIPROC = 0x7fffffff // End of processor-specific. 1842 }; 1843 1844 /// Convert an architecture name into ELF's e_machine value. 1845 uint16_t convertArchNameToEMachine(StringRef Arch); 1846 1847 /// Convert an ELF's e_machine value into an architecture name. 1848 StringRef convertEMachineToArchName(uint16_t EMachine); 1849 1850 } // end namespace ELF 1851 } // end namespace llvm 1852 1853 #endif // LLVM_BINARYFORMAT_ELF_H 1854