include/llvm/Support/ELF.h

   1 //===-- llvm/Support/ELF.h - ELF constants and data structures --*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This header contains common, non-processor-specific data structures and
  11 // constants for the ELF file format.
  12 //
  13 // The details of the ELF32 bits in this file are largely based on the Tool
  14 // Interface Standard (TIS) Executable and Linking Format (ELF) Specification
  15 // Version 1.2, May 1995. The ELF64 stuff is based on ELF-64 Object File Format
  16 // Version 1.5, Draft 2, May 1998 as well as OpenBSD header files.
  17 //
  18 //===----------------------------------------------------------------------===//
  19
  20 #ifndef LLVM_SUPPORT_ELF_H
  21 #define LLVM_SUPPORT_ELF_H
  22
  23 #include "llvm/Support/Compiler.h"
  24 #include "llvm/Support/DataTypes.h"
  25 #include <cstring>
  26
  27 namespace llvm {
  28
  29 namespace ELF {
  30
  31 typedef uint32_t Elf32_Addr; // Program address
  32 typedef uint32_t Elf32_Off;  // File offset
  33 typedef uint16_t Elf32_Half;
  34 typedef uint32_t Elf32_Word;
  35 typedef int32_t  Elf32_Sword;
  36
  37 typedef uint64_t Elf64_Addr;
  38 typedef uint64_t Elf64_Off;
  39 typedef uint16_t Elf64_Half;
  40 typedef uint32_t Elf64_Word;
  41 typedef int32_t  Elf64_Sword;
  42 typedef uint64_t Elf64_Xword;
  43 typedef int64_t  Elf64_Sxword;
  44
  45 // Object file magic string.
  46 static const char ElfMagic[] = { 0x7f, 'E', 'L', 'F', '\0' };
  47
  48 // e_ident size and indices.
  49 enum {
  50   EI_MAG0       = 0,          // File identification index.
  51   EI_MAG1       = 1,          // File identification index.
  52   EI_MAG2       = 2,          // File identification index.
  53   EI_MAG3       = 3,          // File identification index.
  54   EI_CLASS      = 4,          // File class.
  55   EI_DATA       = 5,          // Data encoding.
  56   EI_VERSION    = 6,          // File version.
  57   EI_OSABI      = 7,          // OS/ABI identification.
  58   EI_ABIVERSION = 8,          // ABI version.
  59   EI_PAD        = 9,          // Start of padding bytes.
  60   EI_NIDENT     = 16          // Number of bytes in e_ident.
  61 };
  62
  63 struct Elf32_Ehdr {
  64   unsigned char e_ident[EI_NIDENT]; // ELF Identification bytes
  65   Elf32_Half    e_type;      // Type of file (see ET_* below)
  66   Elf32_Half    e_machine;   // Required architecture for this file (see EM_*)
  67   Elf32_Word    e_version;   // Must be equal to 1
  68   Elf32_Addr    e_entry;     // Address to jump to in order to start program
  69   Elf32_Off     e_phoff;     // Program header table's file offset, in bytes
  70   Elf32_Off     e_shoff;     // Section header table's file offset, in bytes
  71   Elf32_Word    e_flags;     // Processor-specific flags
  72   Elf32_Half    e_ehsize;    // Size of ELF header, in bytes
  73   Elf32_Half    e_phentsize; // Size of an entry in the program header table
  74   Elf32_Half    e_phnum;     // Number of entries in the program header table
  75   Elf32_Half    e_shentsize; // Size of an entry in the section header table
  76   Elf32_Half    e_shnum;     // Number of entries in the section header table
  77   Elf32_Half    e_shstrndx;  // Sect hdr table index of sect name string table
  78   bool checkMagic() const {
  79     return (memcmp(e_ident, ElfMagic, strlen(ElfMagic))) == 0;
  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   bool checkMagic() const {
 103     return (memcmp(e_ident, ElfMagic, strlen(ElfMagic))) == 0;
 104   }
 105   unsigned char getFileClass() const { return e_ident[EI_CLASS]; }
 106   unsigned char getDataEncoding() const { return e_ident[EI_DATA]; }
 107 };
 108
 109 // File types
 110 enum {
 111   ET_NONE   = 0,      // No file type
 112   ET_REL    = 1,      // Relocatable file
 113   ET_EXEC   = 2,      // Executable file
 114   ET_DYN    = 3,      // Shared object file
 115   ET_CORE   = 4,      // Core file
 116   ET_LOPROC = 0xff00, // Beginning of processor-specific codes
 117   ET_HIPROC = 0xffff  // Processor-specific
 118 };
 119
 120 // Versioning
 121 enum {
 122   EV_NONE = 0,
 123   EV_CURRENT = 1
 124 };
 125
 126 // Machine architectures
 127 enum {
 128   EM_NONE          = 0, // No machine
 129   EM_M32           = 1, // AT&T WE 32100
 130   EM_SPARC         = 2, // SPARC
 131   EM_386           = 3, // Intel 386
 132   EM_68K           = 4, // Motorola 68000
 133   EM_88K           = 5, // Motorola 88000
 134   EM_486           = 6, // Intel 486 (deprecated)
 135   EM_860           = 7, // Intel 80860
 136   EM_MIPS          = 8, // MIPS R3000
 137   EM_S370          = 9, // IBM System/370
 138   EM_MIPS_RS3_LE   = 10, // MIPS RS3000 Little-endian
 139   EM_PARISC        = 15, // Hewlett-Packard PA-RISC
 140   EM_VPP500        = 17, // Fujitsu VPP500
 141   EM_SPARC32PLUS   = 18, // Enhanced instruction set SPARC
 142   EM_960           = 19, // Intel 80960
 143   EM_PPC           = 20, // PowerPC
 144   EM_PPC64         = 21, // PowerPC64
 145   EM_S390          = 22, // IBM System/390
 146   EM_SPU           = 23, // IBM SPU/SPC
 147   EM_V800          = 36, // NEC V800
 148   EM_FR20          = 37, // Fujitsu FR20
 149   EM_RH32          = 38, // TRW RH-32
 150   EM_RCE           = 39, // Motorola RCE
 151   EM_ARM           = 40, // ARM
 152   EM_ALPHA         = 41, // DEC Alpha
 153   EM_SH            = 42, // Hitachi SH
 154   EM_SPARCV9       = 43, // SPARC V9
 155   EM_TRICORE       = 44, // Siemens TriCore
 156   EM_ARC           = 45, // Argonaut RISC Core
 157   EM_H8_300        = 46, // Hitachi H8/300
 158   EM_H8_300H       = 47, // Hitachi H8/300H
 159   EM_H8S           = 48, // Hitachi H8S
 160   EM_H8_500        = 49, // Hitachi H8/500
 161   EM_IA_64         = 50, // Intel IA-64 processor architecture
 162   EM_MIPS_X        = 51, // Stanford MIPS-X
 163   EM_COLDFIRE      = 52, // Motorola ColdFire
 164   EM_68HC12        = 53, // Motorola M68HC12
 165   EM_MMA           = 54, // Fujitsu MMA Multimedia Accelerator
 166   EM_PCP           = 55, // Siemens PCP
 167   EM_NCPU          = 56, // Sony nCPU embedded RISC processor
 168   EM_NDR1          = 57, // Denso NDR1 microprocessor
 169   EM_STARCORE      = 58, // Motorola Star*Core processor
 170   EM_ME16          = 59, // Toyota ME16 processor
 171   EM_ST100         = 60, // STMicroelectronics ST100 processor
 172   EM_TINYJ         = 61, // Advanced Logic Corp. TinyJ embedded processor family
 173   EM_X86_64        = 62, // AMD x86-64 architecture
 174   EM_PDSP          = 63, // Sony DSP Processor
 175   EM_PDP10         = 64, // Digital Equipment Corp. PDP-10
 176   EM_PDP11         = 65, // Digital Equipment Corp. PDP-11
 177   EM_FX66          = 66, // Siemens FX66 microcontroller
 178   EM_ST9PLUS       = 67, // STMicroelectronics ST9+ 8/16 bit microcontroller
 179   EM_ST7           = 68, // STMicroelectronics ST7 8-bit microcontroller
 180   EM_68HC16        = 69, // Motorola MC68HC16 Microcontroller
 181   EM_68HC11        = 70, // Motorola MC68HC11 Microcontroller
 182   EM_68HC08        = 71, // Motorola MC68HC08 Microcontroller
 183   EM_68HC05        = 72, // Motorola MC68HC05 Microcontroller
 184   EM_SVX           = 73, // Silicon Graphics SVx
 185   EM_ST19          = 74, // STMicroelectronics ST19 8-bit microcontroller
 186   EM_VAX           = 75, // Digital VAX
 187   EM_CRIS          = 76, // Axis Communications 32-bit embedded processor
 188   EM_JAVELIN       = 77, // Infineon Technologies 32-bit embedded processor
 189   EM_FIREPATH      = 78, // Element 14 64-bit DSP Processor
 190   EM_ZSP           = 79, // LSI Logic 16-bit DSP Processor
 191   EM_MMIX          = 80, // Donald Knuth's educational 64-bit processor
 192   EM_HUANY         = 81, // Harvard University machine-independent object files
 193   EM_PRISM         = 82, // SiTera Prism
 194   EM_AVR           = 83, // Atmel AVR 8-bit microcontroller
 195   EM_FR30          = 84, // Fujitsu FR30
 196   EM_D10V          = 85, // Mitsubishi D10V
 197   EM_D30V          = 86, // Mitsubishi D30V
 198   EM_V850          = 87, // NEC v850
 199   EM_M32R          = 88, // Mitsubishi M32R
 200   EM_MN10300       = 89, // Matsushita MN10300
 201   EM_MN10200       = 90, // Matsushita MN10200
 202   EM_PJ            = 91, // picoJava
 203   EM_OPENRISC      = 92, // OpenRISC 32-bit embedded processor
 204   EM_ARC_COMPACT   = 93, // ARC International ARCompact processor (old
 205                          // spelling/synonym: EM_ARC_A5)
 206   EM_XTENSA        = 94, // Tensilica Xtensa Architecture
 207   EM_VIDEOCORE     = 95, // Alphamosaic VideoCore processor
 208   EM_TMM_GPP       = 96, // Thompson Multimedia General Purpose Processor
 209   EM_NS32K         = 97, // National Semiconductor 32000 series
 210   EM_TPC           = 98, // Tenor Network TPC processor
 211   EM_SNP1K         = 99, // Trebia SNP 1000 processor
 212   EM_ST200         = 100, // STMicroelectronics (www.st.com) ST200
 213   EM_IP2K          = 101, // Ubicom IP2xxx microcontroller family
 214   EM_MAX           = 102, // MAX Processor
 215   EM_CR            = 103, // National Semiconductor CompactRISC microprocessor
 216   EM_F2MC16        = 104, // Fujitsu F2MC16
 217   EM_MSP430        = 105, // Texas Instruments embedded microcontroller msp430
 218   EM_BLACKFIN      = 106, // Analog Devices Blackfin (DSP) processor
 219   EM_SE_C33        = 107, // S1C33 Family of Seiko Epson processors
 220   EM_SEP           = 108, // Sharp embedded microprocessor
 221   EM_ARCA          = 109, // Arca RISC Microprocessor
 222   EM_UNICORE       = 110, // Microprocessor series from PKU-Unity Ltd. and MPRC
 223                           // of Peking University
 224   EM_EXCESS        = 111, // eXcess: 16/32/64-bit configurable embedded CPU
 225   EM_DXP           = 112, // Icera Semiconductor Inc. Deep Execution Processor
 226   EM_ALTERA_NIOS2  = 113, // Altera Nios II soft-core processor
 227   EM_CRX           = 114, // National Semiconductor CompactRISC CRX
 228   EM_XGATE         = 115, // Motorola XGATE embedded processor
 229   EM_C166          = 116, // Infineon C16x/XC16x processor
 230   EM_M16C          = 117, // Renesas M16C series microprocessors
 231   EM_DSPIC30F      = 118, // Microchip Technology dsPIC30F Digital Signal
 232                           // Controller
 233   EM_CE            = 119, // Freescale Communication Engine RISC core
 234   EM_M32C          = 120, // Renesas M32C series microprocessors
 235   EM_TSK3000       = 131, // Altium TSK3000 core
 236   EM_RS08          = 132, // Freescale RS08 embedded processor
 237   EM_SHARC         = 133, // Analog Devices SHARC family of 32-bit DSP
 238                           // processors
 239   EM_ECOG2         = 134, // Cyan Technology eCOG2 microprocessor
 240   EM_SCORE7        = 135, // Sunplus S+core7 RISC processor
 241   EM_DSP24         = 136, // New Japan Radio (NJR) 24-bit DSP Processor
 242   EM_VIDEOCORE3    = 137, // Broadcom VideoCore III processor
 243   EM_LATTICEMICO32 = 138, // RISC processor for Lattice FPGA architecture
 244   EM_SE_C17        = 139, // Seiko Epson C17 family
 245   EM_TI_C6000      = 140, // The Texas Instruments TMS320C6000 DSP family
 246   EM_TI_C2000      = 141, // The Texas Instruments TMS320C2000 DSP family
 247   EM_TI_C5500      = 142, // The Texas Instruments TMS320C55x DSP family
 248   EM_MMDSP_PLUS    = 160, // STMicroelectronics 64bit VLIW Data Signal Processor
 249   EM_CYPRESS_M8C   = 161, // Cypress M8C microprocessor
 250   EM_R32C          = 162, // Renesas R32C series microprocessors
 251   EM_TRIMEDIA      = 163, // NXP Semiconductors TriMedia architecture family
 252   EM_HEXAGON       = 164, // Qualcomm Hexagon processor
 253   EM_8051          = 165, // Intel 8051 and variants
 254   EM_STXP7X        = 166, // STMicroelectronics STxP7x family of configurable
 255                           // and extensible RISC processors
 256   EM_NDS32         = 167, // Andes Technology compact code size embedded RISC
 257                           // processor family
 258   EM_ECOG1         = 168, // Cyan Technology eCOG1X family
 259   EM_ECOG1X        = 168, // Cyan Technology eCOG1X family
 260   EM_MAXQ30        = 169, // Dallas Semiconductor MAXQ30 Core Micro-controllers
 261   EM_XIMO16        = 170, // New Japan Radio (NJR) 16-bit DSP Processor
 262   EM_MANIK         = 171, // M2000 Reconfigurable RISC Microprocessor
 263   EM_CRAYNV2       = 172, // Cray Inc. NV2 vector architecture
 264   EM_RX            = 173, // Renesas RX family
 265   EM_METAG         = 174, // Imagination Technologies META processor
 266                           // architecture
 267   EM_MCST_ELBRUS   = 175, // MCST Elbrus general purpose hardware architecture
 268   EM_ECOG16        = 176, // Cyan Technology eCOG16 family
 269   EM_CR16          = 177, // National Semiconductor CompactRISC CR16 16-bit
 270                           // microprocessor
 271   EM_ETPU          = 178, // Freescale Extended Time Processing Unit
 272   EM_SLE9X         = 179, // Infineon Technologies SLE9X core
 273   EM_L10M          = 180, // Intel L10M
 274   EM_K10M          = 181, // Intel K10M
 275   EM_AARCH64       = 183, // ARM AArch64
 276   EM_AVR32         = 185, // Atmel Corporation 32-bit microprocessor family
 277   EM_STM8          = 186, // STMicroeletronics STM8 8-bit microcontroller
 278   EM_TILE64        = 187, // Tilera TILE64 multicore architecture family
 279   EM_TILEPRO       = 188, // Tilera TILEPro multicore architecture family
 280   EM_CUDA          = 190, // NVIDIA CUDA architecture
 281   EM_TILEGX        = 191, // Tilera TILE-Gx multicore architecture family
 282   EM_CLOUDSHIELD   = 192, // CloudShield architecture family
 283   EM_COREA_1ST     = 193, // KIPO-KAIST Core-A 1st generation processor family
 284   EM_COREA_2ND     = 194, // KIPO-KAIST Core-A 2nd generation processor family
 285   EM_ARC_COMPACT2  = 195, // Synopsys ARCompact V2
 286   EM_OPEN8         = 196, // Open8 8-bit RISC soft processor core
 287   EM_RL78          = 197, // Renesas RL78 family
 288   EM_VIDEOCORE5    = 198, // Broadcom VideoCore V processor
 289   EM_78KOR         = 199, // Renesas 78KOR family
 290   EM_56800EX       = 200  // Freescale 56800EX Digital Signal Controller (DSC)
 291 };
 292
 293 // Object file classes.
 294 enum {
 295   ELFCLASSNONE = 0,
 296   ELFCLASS32 = 1, // 32-bit object file
 297   ELFCLASS64 = 2  // 64-bit object file
 298 };
 299
 300 // Object file byte orderings.
 301 enum {
 302   ELFDATANONE = 0, // Invalid data encoding.
 303   ELFDATA2LSB = 1, // Little-endian object file
 304   ELFDATA2MSB = 2  // Big-endian object file
 305 };
 306
 307 // OS ABI identification.
 308 enum {
 309   ELFOSABI_NONE = 0,          // UNIX System V ABI
 310   ELFOSABI_HPUX = 1,          // HP-UX operating system
 311   ELFOSABI_NETBSD = 2,        // NetBSD
 312   ELFOSABI_GNU = 3,           // GNU/Linux
 313   ELFOSABI_LINUX = 3,         // Historical alias for ELFOSABI_GNU.
 314   ELFOSABI_HURD = 4,          // GNU/Hurd
 315   ELFOSABI_SOLARIS = 6,       // Solaris
 316   ELFOSABI_AIX = 7,           // AIX
 317   ELFOSABI_IRIX = 8,          // IRIX
 318   ELFOSABI_FREEBSD = 9,       // FreeBSD
 319   ELFOSABI_TRU64 = 10,        // TRU64 UNIX
 320   ELFOSABI_MODESTO = 11,      // Novell Modesto
 321   ELFOSABI_OPENBSD = 12,      // OpenBSD
 322   ELFOSABI_OPENVMS = 13,      // OpenVMS
 323   ELFOSABI_NSK = 14,          // Hewlett-Packard Non-Stop Kernel
 324   ELFOSABI_AROS = 15,         // AROS
 325   ELFOSABI_FENIXOS = 16,      // FenixOS
 326   ELFOSABI_C6000_ELFABI = 64, // Bare-metal TMS320C6000
 327   ELFOSABI_C6000_LINUX = 65,  // Linux TMS320C6000
 328   ELFOSABI_ARM = 97,          // ARM
 329   ELFOSABI_STANDALONE = 255   // Standalone (embedded) application
 330 };
 331
 332 // X86_64 relocations.
 333 enum {
 334   R_X86_64_NONE       = 0,
 335   R_X86_64_64         = 1,
 336   R_X86_64_PC32       = 2,
 337   R_X86_64_GOT32      = 3,
 338   R_X86_64_PLT32      = 4,
 339   R_X86_64_COPY       = 5,
 340   R_X86_64_GLOB_DAT   = 6,
 341   R_X86_64_JUMP_SLOT  = 7,
 342   R_X86_64_RELATIVE   = 8,
 343   R_X86_64_GOTPCREL   = 9,
 344   R_X86_64_32         = 10,
 345   R_X86_64_32S        = 11,
 346   R_X86_64_16         = 12,
 347   R_X86_64_PC16       = 13,
 348   R_X86_64_8          = 14,
 349   R_X86_64_PC8        = 15,
 350   R_X86_64_DTPMOD64   = 16,
 351   R_X86_64_DTPOFF64   = 17,
 352   R_X86_64_TPOFF64    = 18,
 353   R_X86_64_TLSGD      = 19,
 354   R_X86_64_TLSLD      = 20,
 355   R_X86_64_DTPOFF32   = 21,
 356   R_X86_64_GOTTPOFF   = 22,
 357   R_X86_64_TPOFF32    = 23,
 358   R_X86_64_PC64       = 24,
 359   R_X86_64_GOTOFF64   = 25,
 360   R_X86_64_GOTPC32    = 26,
 361   R_X86_64_GOT64      = 27,
 362   R_X86_64_GOTPCREL64 = 28,
 363   R_X86_64_GOTPC64    = 29,
 364   R_X86_64_GOTPLT64   = 30,
 365   R_X86_64_PLTOFF64   = 31,
 366   R_X86_64_SIZE32     = 32,
 367   R_X86_64_SIZE64     = 33,
 368   R_X86_64_GOTPC32_TLSDESC = 34,
 369   R_X86_64_TLSDESC_CALL    = 35,
 370   R_X86_64_TLSDESC    = 36,
 371   R_X86_64_IRELATIVE  = 37
 372 };
 373
 374 // i386 relocations.
 375 // TODO: this is just a subset
 376 enum {
 377   R_386_NONE          = 0,
 378   R_386_32            = 1,
 379   R_386_PC32          = 2,
 380   R_386_GOT32         = 3,
 381   R_386_PLT32         = 4,
 382   R_386_COPY          = 5,
 383   R_386_GLOB_DAT      = 6,
 384   R_386_JUMP_SLOT     = 7,
 385   R_386_RELATIVE      = 8,
 386   R_386_GOTOFF        = 9,
 387   R_386_GOTPC         = 10,
 388   R_386_32PLT         = 11,
 389   R_386_TLS_TPOFF     = 14,
 390   R_386_TLS_IE        = 15,
 391   R_386_TLS_GOTIE     = 16,
 392   R_386_TLS_LE        = 17,
 393   R_386_TLS_GD        = 18,
 394   R_386_TLS_LDM       = 19,
 395   R_386_16            = 20,
 396   R_386_PC16          = 21,
 397   R_386_8             = 22,
 398   R_386_PC8           = 23,
 399   R_386_TLS_GD_32     = 24,
 400   R_386_TLS_GD_PUSH   = 25,
 401   R_386_TLS_GD_CALL   = 26,
 402   R_386_TLS_GD_POP    = 27,
 403   R_386_TLS_LDM_32    = 28,
 404   R_386_TLS_LDM_PUSH  = 29,
 405   R_386_TLS_LDM_CALL  = 30,
 406   R_386_TLS_LDM_POP   = 31,
 407   R_386_TLS_LDO_32    = 32,
 408   R_386_TLS_IE_32     = 33,
 409   R_386_TLS_LE_32     = 34,
 410   R_386_TLS_DTPMOD32  = 35,
 411   R_386_TLS_DTPOFF32  = 36,
 412   R_386_TLS_TPOFF32   = 37,
 413   R_386_TLS_GOTDESC   = 39,
 414   R_386_TLS_DESC_CALL = 40,
 415   R_386_TLS_DESC      = 41,
 416   R_386_IRELATIVE     = 42,
 417   R_386_NUM           = 43
 418 };
 419
 420 // ELF Relocation types for PPC32
 421 enum {
 422   R_PPC_NONE                  = 0,      /* No relocation. */
 423   R_PPC_ADDR32                = 1,
 424   R_PPC_ADDR24                = 2,
 425   R_PPC_ADDR16                = 3,
 426   R_PPC_ADDR16_LO             = 4,
 427   R_PPC_ADDR16_HI             = 5,
 428   R_PPC_ADDR16_HA             = 6,
 429   R_PPC_ADDR14                = 7,
 430   R_PPC_ADDR14_BRTAKEN        = 8,
 431   R_PPC_ADDR14_BRNTAKEN       = 9,
 432   R_PPC_REL24                 = 10,
 433   R_PPC_REL14                 = 11,
 434   R_PPC_REL14_BRTAKEN         = 12,
 435   R_PPC_REL14_BRNTAKEN        = 13,
 436   R_PPC_GOT16                 = 14,
 437   R_PPC_GOT16_LO              = 15,
 438   R_PPC_GOT16_HI              = 16,
 439   R_PPC_GOT16_HA              = 17,
 440   R_PPC_REL32                 = 26,
 441   R_PPC_TLS                   = 67,
 442   R_PPC_DTPMOD32              = 68,
 443   R_PPC_TPREL16               = 69,
 444   R_PPC_TPREL16_LO            = 70,
 445   R_PPC_TPREL16_HI            = 71,
 446   R_PPC_TPREL16_HA            = 72,
 447   R_PPC_TPREL32               = 73,
 448   R_PPC_DTPREL16              = 74,
 449   R_PPC_DTPREL16_LO           = 75,
 450   R_PPC_DTPREL16_HI           = 76,
 451   R_PPC_DTPREL16_HA           = 77,
 452   R_PPC_DTPREL32              = 78,
 453   R_PPC_GOT_TLSGD16           = 79,
 454   R_PPC_GOT_TLSGD16_LO        = 80,
 455   R_PPC_GOT_TLSGD16_HI        = 81,
 456   R_PPC_GOT_TLSGD16_HA        = 82,
 457   R_PPC_GOT_TLSLD16           = 83,
 458   R_PPC_GOT_TLSLD16_LO        = 84,
 459   R_PPC_GOT_TLSLD16_HI        = 85,
 460   R_PPC_GOT_TLSLD16_HA        = 86,
 461   R_PPC_GOT_TPREL16           = 87,
 462   R_PPC_GOT_TPREL16_LO        = 88,
 463   R_PPC_GOT_TPREL16_HI        = 89,
 464   R_PPC_GOT_TPREL16_HA        = 90,
 465   R_PPC_GOT_DTPREL16          = 91,
 466   R_PPC_GOT_DTPREL16_LO       = 92,
 467   R_PPC_GOT_DTPREL16_HI       = 93,
 468   R_PPC_GOT_DTPREL16_HA       = 94,
 469   R_PPC_TLSGD                 = 95,
 470   R_PPC_TLSLD                 = 96,
 471   R_PPC_REL16                 = 249,
 472   R_PPC_REL16_LO              = 250,
 473   R_PPC_REL16_HI              = 251,
 474   R_PPC_REL16_HA              = 252
 475 };
 476
 477 // ELF Relocation types for PPC64
 478 enum {
 479   R_PPC64_NONE                = 0,
 480   R_PPC64_ADDR32              = 1,
 481   R_PPC64_ADDR24              = 2,
 482   R_PPC64_ADDR16              = 3,
 483   R_PPC64_ADDR16_LO           = 4,
 484   R_PPC64_ADDR16_HI           = 5,
 485   R_PPC64_ADDR16_HA           = 6,
 486   R_PPC64_ADDR14              = 7,
 487   R_PPC64_ADDR14_BRTAKEN      = 8,
 488   R_PPC64_ADDR14_BRNTAKEN     = 9,
 489   R_PPC64_REL24               = 10,
 490   R_PPC64_REL14               = 11,
 491   R_PPC64_REL14_BRTAKEN       = 12,
 492   R_PPC64_REL14_BRNTAKEN      = 13,
 493   R_PPC64_GOT16               = 14,
 494   R_PPC64_GOT16_LO            = 15,
 495   R_PPC64_GOT16_HI            = 16,
 496   R_PPC64_GOT16_HA            = 17,
 497   R_PPC64_REL32               = 26,
 498   R_PPC64_ADDR64              = 38,
 499   R_PPC64_ADDR16_HIGHER       = 39,
 500   R_PPC64_ADDR16_HIGHERA      = 40,
 501   R_PPC64_ADDR16_HIGHEST      = 41,
 502   R_PPC64_ADDR16_HIGHESTA     = 42,
 503   R_PPC64_REL64               = 44,
 504   R_PPC64_TOC16               = 47,
 505   R_PPC64_TOC16_LO            = 48,
 506   R_PPC64_TOC16_HI            = 49,
 507   R_PPC64_TOC16_HA            = 50,
 508   R_PPC64_TOC                 = 51,
 509   R_PPC64_ADDR16_DS           = 56,
 510   R_PPC64_ADDR16_LO_DS        = 57,
 511   R_PPC64_GOT16_DS            = 58,
 512   R_PPC64_GOT16_LO_DS         = 59,
 513   R_PPC64_TOC16_DS            = 63,
 514   R_PPC64_TOC16_LO_DS         = 64,
 515   R_PPC64_TLS                 = 67,
 516   R_PPC64_DTPMOD64            = 68,
 517   R_PPC64_TPREL16             = 69,
 518   R_PPC64_TPREL16_LO          = 70,
 519   R_PPC64_TPREL16_HI          = 71,
 520   R_PPC64_TPREL16_HA          = 72,
 521   R_PPC64_TPREL64             = 73,
 522   R_PPC64_DTPREL16            = 74,
 523   R_PPC64_DTPREL16_LO         = 75,
 524   R_PPC64_DTPREL16_HI         = 76,
 525   R_PPC64_DTPREL16_HA         = 77,
 526   R_PPC64_DTPREL64            = 78,
 527   R_PPC64_GOT_TLSGD16         = 79,
 528   R_PPC64_GOT_TLSGD16_LO      = 80,
 529   R_PPC64_GOT_TLSGD16_HI      = 81,
 530   R_PPC64_GOT_TLSGD16_HA      = 82,
 531   R_PPC64_GOT_TLSLD16         = 83,
 532   R_PPC64_GOT_TLSLD16_LO      = 84,
 533   R_PPC64_GOT_TLSLD16_HI      = 85,
 534   R_PPC64_GOT_TLSLD16_HA      = 86,
 535   R_PPC64_GOT_TPREL16_DS      = 87,
 536   R_PPC64_GOT_TPREL16_LO_DS   = 88,
 537   R_PPC64_GOT_TPREL16_HI      = 89,
 538   R_PPC64_GOT_TPREL16_HA      = 90,
 539   R_PPC64_GOT_DTPREL16_DS     = 91,
 540   R_PPC64_GOT_DTPREL16_LO_DS  = 92,
 541   R_PPC64_GOT_DTPREL16_HI     = 93,
 542   R_PPC64_GOT_DTPREL16_HA     = 94,
 543   R_PPC64_TPREL16_DS          = 95,
 544   R_PPC64_TPREL16_LO_DS       = 96,
 545   R_PPC64_TPREL16_HIGHER      = 97,
 546   R_PPC64_TPREL16_HIGHERA     = 98,
 547   R_PPC64_TPREL16_HIGHEST     = 99,
 548   R_PPC64_TPREL16_HIGHESTA    = 100,
 549   R_PPC64_DTPREL16_DS         = 101,
 550   R_PPC64_DTPREL16_LO_DS      = 102,
 551   R_PPC64_DTPREL16_HIGHER     = 103,
 552   R_PPC64_DTPREL16_HIGHERA    = 104,
 553   R_PPC64_DTPREL16_HIGHEST    = 105,
 554   R_PPC64_DTPREL16_HIGHESTA   = 106,
 555   R_PPC64_TLSGD               = 107,
 556   R_PPC64_TLSLD               = 108,
 557   R_PPC64_REL16               = 249,
 558   R_PPC64_REL16_LO            = 250,
 559   R_PPC64_REL16_HI            = 251,
 560   R_PPC64_REL16_HA            = 252
 561 };
 562
 563 // ELF Relocation types for AArch64
 564
 565 enum {
 566   R_AARCH64_NONE                        = 0x100,
 567
 568   R_AARCH64_ABS64                       = 0x101,
 569   R_AARCH64_ABS32                       = 0x102,
 570   R_AARCH64_ABS16                       = 0x103,
 571   R_AARCH64_PREL64                      = 0x104,
 572   R_AARCH64_PREL32                      = 0x105,
 573   R_AARCH64_PREL16                      = 0x106,
 574
 575   R_AARCH64_MOVW_UABS_G0                = 0x107,
 576   R_AARCH64_MOVW_UABS_G0_NC             = 0x108,
 577   R_AARCH64_MOVW_UABS_G1                = 0x109,
 578   R_AARCH64_MOVW_UABS_G1_NC             = 0x10a,
 579   R_AARCH64_MOVW_UABS_G2                = 0x10b,
 580   R_AARCH64_MOVW_UABS_G2_NC             = 0x10c,
 581   R_AARCH64_MOVW_UABS_G3                = 0x10d,
 582   R_AARCH64_MOVW_SABS_G0                = 0x10e,
 583   R_AARCH64_MOVW_SABS_G1                = 0x10f,
 584   R_AARCH64_MOVW_SABS_G2                = 0x110,
 585
 586   R_AARCH64_LD_PREL_LO19                = 0x111,
 587   R_AARCH64_ADR_PREL_LO21               = 0x112,
 588   R_AARCH64_ADR_PREL_PG_HI21            = 0x113,
 589   R_AARCH64_ADD_ABS_LO12_NC             = 0x115,
 590   R_AARCH64_LDST8_ABS_LO12_NC           = 0x116,
 591
 592   R_AARCH64_TSTBR14                     = 0x117,
 593   R_AARCH64_CONDBR19                    = 0x118,
 594   R_AARCH64_JUMP26                      = 0x11a,
 595   R_AARCH64_CALL26                      = 0x11b,
 596
 597   R_AARCH64_LDST16_ABS_LO12_NC          = 0x11c,
 598   R_AARCH64_LDST32_ABS_LO12_NC          = 0x11d,
 599   R_AARCH64_LDST64_ABS_LO12_NC          = 0x11e,
 600
 601   R_AARCH64_LDST128_ABS_LO12_NC         = 0x12b,
 602
 603   R_AARCH64_ADR_GOT_PAGE                = 0x137,
 604   R_AARCH64_LD64_GOT_LO12_NC            = 0x138,
 605
 606   R_AARCH64_TLSLD_MOVW_DTPREL_G2        = 0x20b,
 607   R_AARCH64_TLSLD_MOVW_DTPREL_G1        = 0x20c,
 608   R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC     = 0x20d,
 609   R_AARCH64_TLSLD_MOVW_DTPREL_G0        = 0x20e,
 610   R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC     = 0x20f,
 611   R_AARCH64_TLSLD_ADD_DTPREL_HI12       = 0x210,
 612   R_AARCH64_TLSLD_ADD_DTPREL_LO12       = 0x211,
 613   R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC    = 0x212,
 614   R_AARCH64_TLSLD_LDST8_DTPREL_LO12     = 0x213,
 615   R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC  = 0x214,
 616   R_AARCH64_TLSLD_LDST16_DTPREL_LO12    = 0x215,
 617   R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC = 0x216,
 618   R_AARCH64_TLSLD_LDST32_DTPREL_LO12    = 0x217,
 619   R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC = 0x218,
 620   R_AARCH64_TLSLD_LDST64_DTPREL_LO12    = 0x219,
 621   R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC = 0x21a,
 622
 623   R_AARCH64_TLSIE_MOVW_GOTTPREL_G1      = 0x21b,
 624   R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC   = 0x21c,
 625   R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21   = 0x21d,
 626   R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC = 0x21e,
 627   R_AARCH64_TLSIE_LD_GOTTPREL_PREL19    = 0x21f,
 628
 629   R_AARCH64_TLSLE_MOVW_TPREL_G2         = 0x220,
 630   R_AARCH64_TLSLE_MOVW_TPREL_G1         = 0x221,
 631   R_AARCH64_TLSLE_MOVW_TPREL_G1_NC      = 0x222,
 632   R_AARCH64_TLSLE_MOVW_TPREL_G0         = 0x223,
 633   R_AARCH64_TLSLE_MOVW_TPREL_G0_NC      = 0x224,
 634   R_AARCH64_TLSLE_ADD_TPREL_HI12        = 0x225,
 635   R_AARCH64_TLSLE_ADD_TPREL_LO12        = 0x226,
 636   R_AARCH64_TLSLE_ADD_TPREL_LO12_NC     = 0x227,
 637   R_AARCH64_TLSLE_LDST8_TPREL_LO12      = 0x228,
 638   R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC   = 0x229,
 639   R_AARCH64_TLSLE_LDST16_TPREL_LO12     = 0x22a,
 640   R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC  = 0x22b,
 641   R_AARCH64_TLSLE_LDST32_TPREL_LO12     = 0x22c,
 642   R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC  = 0x22d,
 643   R_AARCH64_TLSLE_LDST64_TPREL_LO12     = 0x22e,
 644   R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC  = 0x22f,
 645
 646   R_AARCH64_TLSDESC_ADR_PAGE            = 0x232,
 647   R_AARCH64_TLSDESC_LD64_LO12_NC        = 0x233,
 648   R_AARCH64_TLSDESC_ADD_LO12_NC         = 0x234,
 649
 650   R_AARCH64_TLSDESC_CALL                = 0x239
 651 };
 652
 653 // ARM Specific e_flags
 654 enum LLVM_ENUM_INT_TYPE(unsigned) {
 655   EF_ARM_SOFT_FLOAT =     0x00000200U,
 656   EF_ARM_VFP_FLOAT =      0x00000400U,
 657   EF_ARM_EABI_UNKNOWN =   0x00000000U,
 658   EF_ARM_EABI_VER1 =      0x01000000U,
 659   EF_ARM_EABI_VER2 =      0x02000000U,
 660   EF_ARM_EABI_VER3 =      0x03000000U,
 661   EF_ARM_EABI_VER4 =      0x04000000U,
 662   EF_ARM_EABI_VER5 =      0x05000000U,
 663   EF_ARM_EABIMASK =       0xFF000000U
 664 };
 665
 666 // ELF Relocation types for ARM
 667 // Meets 2.08 ABI Specs.
 668
 669 enum {
 670   R_ARM_NONE                  = 0x00,
 671   R_ARM_PC24                  = 0x01,
 672   R_ARM_ABS32                 = 0x02,
 673   R_ARM_REL32                 = 0x03,
 674   R_ARM_LDR_PC_G0             = 0x04,
 675   R_ARM_ABS16                 = 0x05,
 676   R_ARM_ABS12                 = 0x06,
 677   R_ARM_THM_ABS5              = 0x07,
 678   R_ARM_ABS8                  = 0x08,
 679   R_ARM_SBREL32               = 0x09,
 680   R_ARM_THM_CALL              = 0x0a,
 681   R_ARM_THM_PC8               = 0x0b,
 682   R_ARM_BREL_ADJ              = 0x0c,
 683   R_ARM_TLS_DESC              = 0x0d,
 684   R_ARM_THM_SWI8              = 0x0e,
 685   R_ARM_XPC25                 = 0x0f,
 686   R_ARM_THM_XPC22             = 0x10,
 687   R_ARM_TLS_DTPMOD32          = 0x11,
 688   R_ARM_TLS_DTPOFF32          = 0x12,
 689   R_ARM_TLS_TPOFF32           = 0x13,
 690   R_ARM_COPY                  = 0x14,
 691   R_ARM_GLOB_DAT              = 0x15,
 692   R_ARM_JUMP_SLOT             = 0x16,
 693   R_ARM_RELATIVE              = 0x17,
 694   R_ARM_GOTOFF32              = 0x18,
 695   R_ARM_BASE_PREL             = 0x19,
 696   R_ARM_GOT_BREL              = 0x1a,
 697   R_ARM_PLT32                 = 0x1b,
 698   R_ARM_CALL                  = 0x1c,
 699   R_ARM_JUMP24                = 0x1d,
 700   R_ARM_THM_JUMP24            = 0x1e,
 701   R_ARM_BASE_ABS              = 0x1f,
 702   R_ARM_ALU_PCREL_7_0         = 0x20,
 703   R_ARM_ALU_PCREL_15_8        = 0x21,
 704   R_ARM_ALU_PCREL_23_15       = 0x22,
 705   R_ARM_LDR_SBREL_11_0_NC     = 0x23,
 706   R_ARM_ALU_SBREL_19_12_NC    = 0x24,
 707   R_ARM_ALU_SBREL_27_20_CK    = 0x25,
 708   R_ARM_TARGET1               = 0x26,
 709   R_ARM_SBREL31               = 0x27,
 710   R_ARM_V4BX                  = 0x28,
 711   R_ARM_TARGET2               = 0x29,
 712   R_ARM_PREL31                = 0x2a,
 713   R_ARM_MOVW_ABS_NC           = 0x2b,
 714   R_ARM_MOVT_ABS              = 0x2c,
 715   R_ARM_MOVW_PREL_NC          = 0x2d,
 716   R_ARM_MOVT_PREL             = 0x2e,
 717   R_ARM_THM_MOVW_ABS_NC       = 0x2f,
 718   R_ARM_THM_MOVT_ABS          = 0x30,
 719   R_ARM_THM_MOVW_PREL_NC      = 0x31,
 720   R_ARM_THM_MOVT_PREL         = 0x32,
 721   R_ARM_THM_JUMP19            = 0x33,
 722   R_ARM_THM_JUMP6             = 0x34,
 723   R_ARM_THM_ALU_PREL_11_0     = 0x35,
 724   R_ARM_THM_PC12              = 0x36,
 725   R_ARM_ABS32_NOI             = 0x37,
 726   R_ARM_REL32_NOI             = 0x38,
 727   R_ARM_ALU_PC_G0_NC          = 0x39,
 728   R_ARM_ALU_PC_G0             = 0x3a,
 729   R_ARM_ALU_PC_G1_NC          = 0x3b,
 730   R_ARM_ALU_PC_G1             = 0x3c,
 731   R_ARM_ALU_PC_G2             = 0x3d,
 732   R_ARM_LDR_PC_G1             = 0x3e,
 733   R_ARM_LDR_PC_G2             = 0x3f,
 734   R_ARM_LDRS_PC_G0            = 0x40,
 735   R_ARM_LDRS_PC_G1            = 0x41,
 736   R_ARM_LDRS_PC_G2            = 0x42,
 737   R_ARM_LDC_PC_G0             = 0x43,
 738   R_ARM_LDC_PC_G1             = 0x44,
 739   R_ARM_LDC_PC_G2             = 0x45,
 740   R_ARM_ALU_SB_G0_NC          = 0x46,
 741   R_ARM_ALU_SB_G0             = 0x47,
 742   R_ARM_ALU_SB_G1_NC          = 0x48,
 743   R_ARM_ALU_SB_G1             = 0x49,
 744   R_ARM_ALU_SB_G2             = 0x4a,
 745   R_ARM_LDR_SB_G0             = 0x4b,
 746   R_ARM_LDR_SB_G1             = 0x4c,
 747   R_ARM_LDR_SB_G2             = 0x4d,
 748   R_ARM_LDRS_SB_G0            = 0x4e,
 749   R_ARM_LDRS_SB_G1            = 0x4f,
 750   R_ARM_LDRS_SB_G2            = 0x50,
 751   R_ARM_LDC_SB_G0             = 0x51,
 752   R_ARM_LDC_SB_G1             = 0x52,
 753   R_ARM_LDC_SB_G2             = 0x53,
 754   R_ARM_MOVW_BREL_NC          = 0x54,
 755   R_ARM_MOVT_BREL             = 0x55,
 756   R_ARM_MOVW_BREL             = 0x56,
 757   R_ARM_THM_MOVW_BREL_NC      = 0x57,
 758   R_ARM_THM_MOVT_BREL         = 0x58,
 759   R_ARM_THM_MOVW_BREL         = 0x59,
 760   R_ARM_TLS_GOTDESC           = 0x5a,
 761   R_ARM_TLS_CALL              = 0x5b,
 762   R_ARM_TLS_DESCSEQ           = 0x5c,
 763   R_ARM_THM_TLS_CALL          = 0x5d,
 764   R_ARM_PLT32_ABS             = 0x5e,
 765   R_ARM_GOT_ABS               = 0x5f,
 766   R_ARM_GOT_PREL              = 0x60,
 767   R_ARM_GOT_BREL12            = 0x61,
 768   R_ARM_GOTOFF12              = 0x62,
 769   R_ARM_GOTRELAX              = 0x63,
 770   R_ARM_GNU_VTENTRY           = 0x64,
 771   R_ARM_GNU_VTINHERIT         = 0x65,
 772   R_ARM_THM_JUMP11            = 0x66,
 773   R_ARM_THM_JUMP8             = 0x67,
 774   R_ARM_TLS_GD32              = 0x68,
 775   R_ARM_TLS_LDM32             = 0x69,
 776   R_ARM_TLS_LDO32             = 0x6a,
 777   R_ARM_TLS_IE32              = 0x6b,
 778   R_ARM_TLS_LE32              = 0x6c,
 779   R_ARM_TLS_LDO12             = 0x6d,
 780   R_ARM_TLS_LE12              = 0x6e,
 781   R_ARM_TLS_IE12GP            = 0x6f,
 782   R_ARM_PRIVATE_0             = 0x70,
 783   R_ARM_PRIVATE_1             = 0x71,
 784   R_ARM_PRIVATE_2             = 0x72,
 785   R_ARM_PRIVATE_3             = 0x73,
 786   R_ARM_PRIVATE_4             = 0x74,
 787   R_ARM_PRIVATE_5             = 0x75,
 788   R_ARM_PRIVATE_6             = 0x76,
 789   R_ARM_PRIVATE_7             = 0x77,
 790   R_ARM_PRIVATE_8             = 0x78,
 791   R_ARM_PRIVATE_9             = 0x79,
 792   R_ARM_PRIVATE_10            = 0x7a,
 793   R_ARM_PRIVATE_11            = 0x7b,
 794   R_ARM_PRIVATE_12            = 0x7c,
 795   R_ARM_PRIVATE_13            = 0x7d,
 796   R_ARM_PRIVATE_14            = 0x7e,
 797   R_ARM_PRIVATE_15            = 0x7f,
 798   R_ARM_ME_TOO                = 0x80,
 799   R_ARM_THM_TLS_DESCSEQ16     = 0x81,
 800   R_ARM_THM_TLS_DESCSEQ32     = 0x82
 801 };
 802
 803 // Mips Specific e_flags
 804 enum LLVM_ENUM_INT_TYPE(unsigned) {
 805   EF_MIPS_NOREORDER = 0x00000001, // Don't reorder instructions
 806   EF_MIPS_PIC       = 0x00000002, // Position independent code
 807   EF_MIPS_CPIC      = 0x00000004, // Call object with Position independent code
 808   EF_MIPS_ABI2      = 0x00000020,
 809   EF_MIPS_32BITMODE = 0x00000100,
 810   EF_MIPS_ABI_O32   = 0x00001000, // This file follows the first MIPS 32 bit ABI
 811
 812   //ARCH_ASE
 813   EF_MIPS_MICROMIPS = 0x02000000, // microMIPS
 814   EF_MIPS_ARCH_ASE_M16 =
 815                       0x04000000, // Has Mips-16 ISA extensions
 816   //ARCH
 817   EF_MIPS_ARCH_1    = 0x00000000, // MIPS1 instruction set
 818   EF_MIPS_ARCH_2    = 0x10000000, // MIPS2 instruction set
 819   EF_MIPS_ARCH_3    = 0x20000000, // MIPS3 instruction set
 820   EF_MIPS_ARCH_4    = 0x30000000, // MIPS4 instruction set
 821   EF_MIPS_ARCH_5    = 0x40000000, // MIPS5 instruction set
 822   EF_MIPS_ARCH_32   = 0x50000000, // MIPS32 instruction set per linux not elf.h
 823   EF_MIPS_ARCH_64   = 0x60000000, // MIPS64 instruction set per linux not elf.h
 824   EF_MIPS_ARCH_32R2 = 0x70000000, // mips32r2
 825   EF_MIPS_ARCH_64R2 = 0x80000000, // mips64r2
 826   EF_MIPS_ARCH      = 0xf0000000  // Mask for applying EF_MIPS_ARCH_ variant
 827 };
 828
 829 // ELF Relocation types for Mips
 830 // .
 831 enum {
 832   R_MIPS_NONE              =  0,
 833   R_MIPS_16                =  1,
 834   R_MIPS_32                =  2,
 835   R_MIPS_REL32             =  3,
 836   R_MIPS_26                =  4,
 837   R_MIPS_HI16              =  5,
 838   R_MIPS_LO16              =  6,
 839   R_MIPS_GPREL16           =  7,
 840   R_MIPS_LITERAL           =  8,
 841   R_MIPS_GOT16             =  9,
 842   R_MIPS_GOT               =  9,
 843   R_MIPS_PC16              = 10,
 844   R_MIPS_CALL16            = 11,
 845   R_MIPS_GPREL32           = 12,
 846   R_MIPS_UNUSED1           = 13,
 847   R_MIPS_UNUSED2           = 14,
 848   R_MIPS_SHIFT5            = 16,
 849   R_MIPS_SHIFT6            = 17,
 850   R_MIPS_64                = 18,
 851   R_MIPS_GOT_DISP          = 19,
 852   R_MIPS_GOT_PAGE          = 20,
 853   R_MIPS_GOT_OFST          = 21,
 854   R_MIPS_GOT_HI16          = 22,
 855   R_MIPS_GOT_LO16          = 23,
 856   R_MIPS_SUB               = 24,
 857   R_MIPS_INSERT_A          = 25,
 858   R_MIPS_INSERT_B          = 26,
 859   R_MIPS_DELETE            = 27,
 860   R_MIPS_HIGHER            = 28,
 861   R_MIPS_HIGHEST           = 29,
 862   R_MIPS_CALL_HI16         = 30,
 863   R_MIPS_CALL_LO16         = 31,
 864   R_MIPS_SCN_DISP          = 32,
 865   R_MIPS_REL16             = 33,
 866   R_MIPS_ADD_IMMEDIATE     = 34,
 867   R_MIPS_PJUMP             = 35,
 868   R_MIPS_RELGOT            = 36,
 869   R_MIPS_JALR              = 37,
 870   R_MIPS_TLS_DTPMOD32      = 38,
 871   R_MIPS_TLS_DTPREL32      = 39,
 872   R_MIPS_TLS_DTPMOD64      = 40,
 873   R_MIPS_TLS_DTPREL64      = 41,
 874   R_MIPS_TLS_GD            = 42,
 875   R_MIPS_TLS_LDM           = 43,
 876   R_MIPS_TLS_DTPREL_HI16   = 44,
 877   R_MIPS_TLS_DTPREL_LO16   = 45,
 878   R_MIPS_TLS_GOTTPREL      = 46,
 879   R_MIPS_TLS_TPREL32       = 47,
 880   R_MIPS_TLS_TPREL64       = 48,
 881   R_MIPS_TLS_TPREL_HI16    = 49,
 882   R_MIPS_TLS_TPREL_LO16    = 50,
 883   R_MIPS_GLOB_DAT          = 51,
 884   R_MIPS_COPY              = 126,
 885   R_MIPS_JUMP_SLOT         = 127,
 886   R_MICROMIPS_26_S1        = 133,
 887   R_MICROMIPS_HI16         = 134,
 888   R_MICROMIPS_LO16         = 135,
 889   R_MICROMIPS_GOT16        = 138,
 890   R_MICROMIPS_PC16_S1      = 141,
 891   R_MICROMIPS_CALL16       = 142,
 892   R_MICROMIPS_GOT_DISP     = 145,
 893   R_MICROMIPS_GOT_PAGE     = 146,
 894   R_MICROMIPS_GOT_OFST     = 147,
 895   R_MICROMIPS_TLS_GD          = 162,
 896   R_MICROMIPS_TLS_LDM         = 163,
 897   R_MICROMIPS_TLS_DTPREL_HI16 = 164,
 898   R_MICROMIPS_TLS_DTPREL_LO16 = 165,
 899   R_MICROMIPS_TLS_TPREL_HI16  = 169,
 900   R_MICROMIPS_TLS_TPREL_LO16  = 170,
 901   R_MIPS_NUM               = 218
 902 };
 903
 904 // Special values for the st_other field in the symbol table entry for MIPS.
 905 enum {
 906   STO_MIPS_MICROMIPS       = 0x80 // MIPS Specific ISA for MicroMips
 907 };
 908
 909 // Hexagon Specific e_flags
 910 // Release 5 ABI
 911 enum {
 912   // Object processor version flags, bits[3:0]
 913   EF_HEXAGON_MACH_V2      = 0x00000001,   // Hexagon V2
 914   EF_HEXAGON_MACH_V3      = 0x00000002,   // Hexagon V3
 915   EF_HEXAGON_MACH_V4      = 0x00000003,   // Hexagon V4
 916   EF_HEXAGON_MACH_V5      = 0x00000004,   // Hexagon V5
 917
 918   // Highest ISA version flags
 919   EF_HEXAGON_ISA_MACH     = 0x00000000,   // Same as specified in bits[3:0]
 920                                           // of e_flags
 921   EF_HEXAGON_ISA_V2       = 0x00000010,   // Hexagon V2 ISA
 922   EF_HEXAGON_ISA_V3       = 0x00000020,   // Hexagon V3 ISA
 923   EF_HEXAGON_ISA_V4       = 0x00000030,   // Hexagon V4 ISA
 924   EF_HEXAGON_ISA_V5       = 0x00000040    // Hexagon V5 ISA
 925 };
 926
 927 // Hexagon specific Section indexes for common small data
 928 // Release 5 ABI
 929 enum {
 930   SHN_HEXAGON_SCOMMON     = 0xff00,       // Other access sizes
 931   SHN_HEXAGON_SCOMMON_1   = 0xff01,       // Byte-sized access
 932   SHN_HEXAGON_SCOMMON_2   = 0xff02,       // Half-word-sized access
 933   SHN_HEXAGON_SCOMMON_4   = 0xff03,       // Word-sized access
 934   SHN_HEXAGON_SCOMMON_8   = 0xff04        // Double-word-size access
 935 };
 936
 937 // ELF Relocation types for Hexagon
 938 // Release 5 ABI
 939 enum {
 940   R_HEX_NONE              =  0,
 941   R_HEX_B22_PCREL         =  1,
 942   R_HEX_B15_PCREL         =  2,
 943   R_HEX_B7_PCREL          =  3,
 944   R_HEX_LO16              =  4,
 945   R_HEX_HI16              =  5,
 946   R_HEX_32                =  6,
 947   R_HEX_16                =  7,
 948   R_HEX_8                 =  8,
 949   R_HEX_GPREL16_0         =  9,
 950   R_HEX_GPREL16_1         =  10,
 951   R_HEX_GPREL16_2         =  11,
 952   R_HEX_GPREL16_3         =  12,
 953   R_HEX_HL16              =  13,
 954   R_HEX_B13_PCREL         =  14,
 955   R_HEX_B9_PCREL          =  15,
 956   R_HEX_B32_PCREL_X       =  16,
 957   R_HEX_32_6_X            =  17,
 958   R_HEX_B22_PCREL_X       =  18,
 959   R_HEX_B15_PCREL_X       =  19,
 960   R_HEX_B13_PCREL_X       =  20,
 961   R_HEX_B9_PCREL_X        =  21,
 962   R_HEX_B7_PCREL_X        =  22,
 963   R_HEX_16_X              =  23,
 964   R_HEX_12_X              =  24,
 965   R_HEX_11_X              =  25,
 966   R_HEX_10_X              =  26,
 967   R_HEX_9_X               =  27,
 968   R_HEX_8_X               =  28,
 969   R_HEX_7_X               =  29,
 970   R_HEX_6_X               =  30,
 971   R_HEX_32_PCREL          =  31,
 972   R_HEX_COPY              =  32,
 973   R_HEX_GLOB_DAT          =  33,
 974   R_HEX_JMP_SLOT          =  34,
 975   R_HEX_RELATIVE          =  35,
 976   R_HEX_PLT_B22_PCREL     =  36,
 977   R_HEX_GOTREL_LO16       =  37,
 978   R_HEX_GOTREL_HI16       =  38,
 979   R_HEX_GOTREL_32         =  39,
 980   R_HEX_GOT_LO16          =  40,
 981   R_HEX_GOT_HI16          =  41,
 982   R_HEX_GOT_32            =  42,
 983   R_HEX_GOT_16            =  43,
 984   R_HEX_DTPMOD_32         =  44,
 985   R_HEX_DTPREL_LO16       =  45,
 986   R_HEX_DTPREL_HI16       =  46,
 987   R_HEX_DTPREL_32         =  47,
 988   R_HEX_DTPREL_16         =  48,
 989   R_HEX_GD_PLT_B22_PCREL  =  49,
 990   R_HEX_GD_GOT_LO16       =  50,
 991   R_HEX_GD_GOT_HI16       =  51,
 992   R_HEX_GD_GOT_32         =  52,
 993   R_HEX_GD_GOT_16         =  53,
 994   R_HEX_IE_LO16           =  54,
 995   R_HEX_IE_HI16           =  55,
 996   R_HEX_IE_32             =  56,
 997   R_HEX_IE_GOT_LO16       =  57,
 998   R_HEX_IE_GOT_HI16       =  58,
 999   R_HEX_IE_GOT_32         =  59,
1000   R_HEX_IE_GOT_16         =  60,
1001   R_HEX_TPREL_LO16        =  61,
1002   R_HEX_TPREL_HI16        =  62,
1003   R_HEX_TPREL_32          =  63,
1004   R_HEX_TPREL_16          =  64,
1005   R_HEX_6_PCREL_X         =  65,
1006   R_HEX_GOTREL_32_6_X     =  66,
1007   R_HEX_GOTREL_16_X       =  67,
1008   R_HEX_GOTREL_11_X       =  68,
1009   R_HEX_GOT_32_6_X        =  69,
1010   R_HEX_GOT_16_X          =  70,
1011   R_HEX_GOT_11_X          =  71,
1012   R_HEX_DTPREL_32_6_X     =  72,
1013   R_HEX_DTPREL_16_X       =  73,
1014   R_HEX_DTPREL_11_X       =  74,
1015   R_HEX_GD_GOT_32_6_X     =  75,
1016   R_HEX_GD_GOT_16_X       =  76,
1017   R_HEX_GD_GOT_11_X       =  77,
1018   R_HEX_IE_32_6_X         =  78,
1019   R_HEX_IE_16_X           =  79,
1020   R_HEX_IE_GOT_32_6_X     =  80,
1021   R_HEX_IE_GOT_16_X       =  81,
1022   R_HEX_IE_GOT_11_X       =  82,
1023   R_HEX_TPREL_32_6_X      =  83,
1024   R_HEX_TPREL_16_X        =  84,
1025   R_HEX_TPREL_11_X        =  85
1026 };
1027
1028 // ELF Relocation types for S390/zSeries
1029 enum {
1030   R_390_NONE        =  0,
1031   R_390_8           =  1,
1032   R_390_12          =  2,
1033   R_390_16          =  3,
1034   R_390_32          =  4,
1035   R_390_PC32        =  5,
1036   R_390_GOT12       =  6,
1037   R_390_GOT32       =  7,
1038   R_390_PLT32       =  8,
1039   R_390_COPY        =  9,
1040   R_390_GLOB_DAT    = 10,
1041   R_390_JMP_SLOT    = 11,
1042   R_390_RELATIVE    = 12,
1043   R_390_GOTOFF      = 13,
1044   R_390_GOTPC       = 14,
1045   R_390_GOT16       = 15,
1046   R_390_PC16        = 16,
1047   R_390_PC16DBL     = 17,
1048   R_390_PLT16DBL    = 18,
1049   R_390_PC32DBL     = 19,
1050   R_390_PLT32DBL    = 20,
1051   R_390_GOTPCDBL    = 21,
1052   R_390_64          = 22,
1053   R_390_PC64        = 23,
1054   R_390_GOT64       = 24,
1055   R_390_PLT64       = 25,
1056   R_390_GOTENT      = 26,
1057   R_390_GOTOFF16    = 27,
1058   R_390_GOTOFF64    = 28,
1059   R_390_GOTPLT12    = 29,
1060   R_390_GOTPLT16    = 30,
1061   R_390_GOTPLT32    = 31,
1062   R_390_GOTPLT64    = 32,
1063   R_390_GOTPLTENT   = 33,
1064   R_390_PLTOFF16    = 34,
1065   R_390_PLTOFF32    = 35,
1066   R_390_PLTOFF64    = 36,
1067   R_390_TLS_LOAD    = 37,
1068   R_390_TLS_GDCALL  = 38,
1069   R_390_TLS_LDCALL  = 39,
1070   R_390_TLS_GD32    = 40,
1071   R_390_TLS_GD64    = 41,
1072   R_390_TLS_GOTIE12 = 42,
1073   R_390_TLS_GOTIE32 = 43,
1074   R_390_TLS_GOTIE64 = 44,
1075   R_390_TLS_LDM32   = 45,
1076   R_390_TLS_LDM64   = 46,
1077   R_390_TLS_IE32    = 47,
1078   R_390_TLS_IE64    = 48,
1079   R_390_TLS_IEENT   = 49,
1080   R_390_TLS_LE32    = 50,
1081   R_390_TLS_LE64    = 51,
1082   R_390_TLS_LDO32   = 52,
1083   R_390_TLS_LDO64   = 53,
1084   R_390_TLS_DTPMOD  = 54,
1085   R_390_TLS_DTPOFF  = 55,
1086   R_390_TLS_TPOFF   = 56,
1087   R_390_20          = 57,
1088   R_390_GOT20       = 58,
1089   R_390_GOTPLT20    = 59,
1090   R_390_TLS_GOTIE20 = 60,
1091   R_390_IRELATIVE   = 61
1092 };
1093
1094 // ELF Relocation type for Sparc.
1095 enum {
1096   R_SPARC_NONE        = 0,
1097   R_SPARC_8           = 1,
1098   R_SPARC_16          = 2,
1099   R_SPARC_32          = 3,
1100   R_SPARC_DISP8       = 4,
1101   R_SPARC_DISP16      = 5,
1102   R_SPARC_DISP32      = 6,
1103   R_SPARC_WDISP30     = 7,
1104   R_SPARC_WDISP22     = 8,
1105   R_SPARC_HI22        = 9,
1106   R_SPARC_22          = 10,
1107   R_SPARC_13          = 11,
1108   R_SPARC_LO10        = 12,
1109   R_SPARC_GOT10       = 13,
1110   R_SPARC_GOT13       = 14,
1111   R_SPARC_GOT22       = 15,
1112   R_SPARC_PC10        = 16,
1113   R_SPARC_PC22        = 17,
1114   R_SPARC_WPLT30      = 18,
1115   R_SPARC_COPY        = 19,
1116   R_SPARC_GLOB_DAT    = 20,
1117   R_SPARC_JMP_SLOT    = 21,
1118   R_SPARC_RELATIVE    = 22,
1119   R_SPARC_UA32        = 23,
1120   R_SPARC_PLT32       = 24,
1121   R_SPARC_HIPLT22     = 25,
1122   R_SPARC_LOPLT10     = 26,
1123   R_SPARC_PCPLT32     = 27,
1124   R_SPARC_PCPLT22     = 28,
1125   R_SPARC_PCPLT10     = 29,
1126   R_SPARC_10          = 30,
1127   R_SPARC_11          = 31,
1128   R_SPARC_64          = 32,
1129   R_SPARC_OLO10       = 33,
1130   R_SPARC_HH22        = 34,
1131   R_SPARC_HM10        = 35,
1132   R_SPARC_LM22        = 36,
1133   R_SPARC_PC_HH22     = 37,
1134   R_SPARC_PC_HM10     = 38,
1135   R_SPARC_PC_LM22     = 39,
1136   R_SPARC_WDISP16     = 40,
1137   R_SPARC_WDISP19     = 41,
1138   R_SPARC_7           = 43,
1139   R_SPARC_5           = 44,
1140   R_SPARC_6           = 45,
1141   R_SPARC_DISP64      = 46,
1142   R_SPARC_PLT64       = 47,
1143   R_SPARC_HIX22       = 48,
1144   R_SPARC_LOX10       = 49,
1145   R_SPARC_H44         = 50,
1146   R_SPARC_M44         = 51,
1147   R_SPARC_L44         = 52,
1148   R_SPARC_REGISTER    = 53,
1149   R_SPARC_UA64        = 54,
1150   R_SPARC_UA16        = 55,
1151   R_SPARC_TLS_GD_HI22   = 56,
1152   R_SPARC_TLS_GD_LO10   = 57,
1153   R_SPARC_TLS_GD_ADD    = 58,
1154   R_SPARC_TLS_GD_CALL   = 59,
1155   R_SPARC_TLS_LDM_HI22  = 60,
1156   R_SPARC_TLS_LDM_LO10  = 61,
1157   R_SPARC_TLS_LDM_ADD   = 62,
1158   R_SPARC_TLS_LDM_CALL  = 63,
1159   R_SPARC_TLS_LDO_HIX22 = 64,
1160   R_SPARC_TLS_LDO_LOX10 = 65,
1161   R_SPARC_TLS_LDO_ADD   = 66,
1162   R_SPARC_TLS_IE_HI22   = 67,
1163   R_SPARC_TLS_IE_LO10   = 68,
1164   R_SPARC_TLS_IE_LD     = 69,
1165   R_SPARC_TLS_IE_LDX    = 70,
1166   R_SPARC_TLS_IE_ADD    = 71,
1167   R_SPARC_TLS_LE_HIX22  = 72,
1168   R_SPARC_TLS_LE_LOX10  = 73,
1169   R_SPARC_TLS_DTPMOD32  = 74,
1170   R_SPARC_TLS_DTPMOD64  = 75,
1171   R_SPARC_TLS_DTPOFF32  = 76,
1172   R_SPARC_TLS_DTPOFF64  = 77,
1173   R_SPARC_TLS_TPOFF32   = 78,
1174   R_SPARC_TLS_TPOFF64   = 79,
1175   R_SPARC_GOTDATA_HIX22 = 80,
1176   R_SPARC_GOTDATA_LOX22 = 81,
1177   R_SPARC_GOTDATA_OP_HIX22 = 82,
1178   R_SPARC_GOTDATA_OP_LOX22 = 83,
1179   R_SPARC_GOTDATA_OP    = 84
1180 };
1181
1182 // Section header.
1183 struct Elf32_Shdr {
1184   Elf32_Word sh_name;      // Section name (index into string table)
1185   Elf32_Word sh_type;      // Section type (SHT_*)
1186   Elf32_Word sh_flags;     // Section flags (SHF_*)
1187   Elf32_Addr sh_addr;      // Address where section is to be loaded
1188   Elf32_Off  sh_offset;    // File offset of section data, in bytes
1189   Elf32_Word sh_size;      // Size of section, in bytes
1190   Elf32_Word sh_link;      // Section type-specific header table index link
1191   Elf32_Word sh_info;      // Section type-specific extra information
1192   Elf32_Word sh_addralign; // Section address alignment
1193   Elf32_Word sh_entsize;   // Size of records contained within the section
1194 };
1195
1196 // Section header for ELF64 - same fields as ELF32, different types.
1197 struct Elf64_Shdr {
1198   Elf64_Word  sh_name;
1199   Elf64_Word  sh_type;
1200   Elf64_Xword sh_flags;
1201   Elf64_Addr  sh_addr;
1202   Elf64_Off   sh_offset;
1203   Elf64_Xword sh_size;
1204   Elf64_Word  sh_link;
1205   Elf64_Word  sh_info;
1206   Elf64_Xword sh_addralign;
1207   Elf64_Xword sh_entsize;
1208 };
1209
1210 // Special section indices.
1211 enum {
1212   SHN_UNDEF     = 0,      // Undefined, missing, irrelevant, or meaningless
1213   SHN_LORESERVE = 0xff00, // Lowest reserved index
1214   SHN_LOPROC    = 0xff00, // Lowest processor-specific index
1215   SHN_HIPROC    = 0xff1f, // Highest processor-specific index
1216   SHN_LOOS      = 0xff20, // Lowest operating system-specific index
1217   SHN_HIOS      = 0xff3f, // Highest operating system-specific index
1218   SHN_ABS       = 0xfff1, // Symbol has absolute value; does not need relocation
1219   SHN_COMMON    = 0xfff2, // FORTRAN COMMON or C external global variables
1220   SHN_XINDEX    = 0xffff, // Mark that the index is >= SHN_LORESERVE
1221   SHN_HIRESERVE = 0xffff  // Highest reserved index
1222 };
1223
1224 // Section types.
1225 enum LLVM_ENUM_INT_TYPE(unsigned) {
1226   SHT_NULL          = 0,  // No associated section (inactive entry).
1227   SHT_PROGBITS      = 1,  // Program-defined contents.
1228   SHT_SYMTAB        = 2,  // Symbol table.
1229   SHT_STRTAB        = 3,  // String table.
1230   SHT_RELA          = 4,  // Relocation entries; explicit addends.
1231   SHT_HASH          = 5,  // Symbol hash table.
1232   SHT_DYNAMIC       = 6,  // Information for dynamic linking.
1233   SHT_NOTE          = 7,  // Information about the file.
1234   SHT_NOBITS        = 8,  // Data occupies no space in the file.
1235   SHT_REL           = 9,  // Relocation entries; no explicit addends.
1236   SHT_SHLIB         = 10, // Reserved.
1237   SHT_DYNSYM        = 11, // Symbol table.
1238   SHT_INIT_ARRAY    = 14, // Pointers to initialization functions.
1239   SHT_FINI_ARRAY    = 15, // Pointers to termination functions.
1240   SHT_PREINIT_ARRAY = 16, // Pointers to pre-init functions.
1241   SHT_GROUP         = 17, // Section group.
1242   SHT_SYMTAB_SHNDX  = 18, // Indices for SHN_XINDEX entries.
1243   SHT_LOOS          = 0x60000000, // Lowest operating system-specific type.
1244   SHT_GNU_ATTRIBUTES= 0x6ffffff5, // Object attributes.
1245   SHT_GNU_HASH      = 0x6ffffff6, // GNU-style hash table.
1246   SHT_GNU_verdef    = 0x6ffffffd, // GNU version definitions.
1247   SHT_GNU_verneed   = 0x6ffffffe, // GNU version references.
1248   SHT_GNU_versym    = 0x6fffffff, // GNU symbol versions table.
1249   SHT_HIOS          = 0x6fffffff, // Highest operating system-specific type.
1250   SHT_LOPROC        = 0x70000000, // Lowest processor arch-specific type.
1251   // Fixme: All this is duplicated in MCSectionELF. Why??
1252   // Exception Index table
1253   SHT_ARM_EXIDX           = 0x70000001U,
1254   // BPABI DLL dynamic linking pre-emption map
1255   SHT_ARM_PREEMPTMAP      = 0x70000002U,
1256   //  Object file compatibility attributes
1257   SHT_ARM_ATTRIBUTES      = 0x70000003U,
1258   SHT_ARM_DEBUGOVERLAY    = 0x70000004U,
1259   SHT_ARM_OVERLAYSECTION  = 0x70000005U,
1260   SHT_HEX_ORDERED         = 0x70000000, // Link editor is to sort the entries in
1261                                         // this section based on their sizes
1262   SHT_X86_64_UNWIND       = 0x70000001, // Unwind information
1263
1264   SHT_MIPS_REGINFO        = 0x70000006, // Register usage information
1265   SHT_MIPS_OPTIONS        = 0x7000000d, // General options
1266
1267   SHT_HIPROC        = 0x7fffffff, // Highest processor arch-specific type.
1268   SHT_LOUSER        = 0x80000000, // Lowest type reserved for applications.
1269   SHT_HIUSER        = 0xffffffff  // Highest type reserved for applications.
1270 };
1271
1272 // Section flags.
1273 enum LLVM_ENUM_INT_TYPE(unsigned) {
1274   // Section data should be writable during execution.
1275   SHF_WRITE = 0x1,
1276
1277   // Section occupies memory during program execution.
1278   SHF_ALLOC = 0x2,
1279
1280   // Section contains executable machine instructions.
1281   SHF_EXECINSTR = 0x4,
1282
1283   // The data in this section may be merged.
1284   SHF_MERGE = 0x10,
1285
1286   // The data in this section is null-terminated strings.
1287   SHF_STRINGS = 0x20,
1288
1289   // A field in this section holds a section header table index.
1290   SHF_INFO_LINK = 0x40U,
1291
1292   // Adds special ordering requirements for link editors.
1293   SHF_LINK_ORDER = 0x80U,
1294
1295   // This section requires special OS-specific processing to avoid incorrect
1296   // behavior.
1297   SHF_OS_NONCONFORMING = 0x100U,
1298
1299   // This section is a member of a section group.
1300   SHF_GROUP = 0x200U,
1301
1302   // This section holds Thread-Local Storage.
1303   SHF_TLS = 0x400U,
1304
1305   // This section is excluded from the final executable or shared library.
1306   SHF_EXCLUDE = 0x80000000U,
1307
1308   // Start of target-specific flags.
1309
1310   /// XCORE_SHF_CP_SECTION - All sections with the "c" flag are grouped
1311   /// together by the linker to form the constant pool and the cp register is
1312   /// set to the start of the constant pool by the boot code.
1313   XCORE_SHF_CP_SECTION = 0x800U,
1314
1315   /// XCORE_SHF_DP_SECTION - All sections with the "d" flag are grouped
1316   /// together by the linker to form the data section and the dp register is
1317   /// set to the start of the section by the boot code.
1318   XCORE_SHF_DP_SECTION = 0x1000U,
1319
1320   SHF_MASKOS   = 0x0ff00000,
1321
1322   // Bits indicating processor-specific flags.
1323   SHF_MASKPROC = 0xf0000000,
1324
1325   // If an object file section does not have this flag set, then it may not hold
1326   // more than 2GB and can be freely referred to in objects using smaller code
1327   // models. Otherwise, only objects using larger code models can refer to them.
1328   // For example, a medium code model object can refer to data in a section that
1329   // sets this flag besides being able to refer to data in a section that does
1330   // not set it; likewise, a small code model object can refer only to code in a
1331   // section that does not set this flag.
1332   SHF_X86_64_LARGE = 0x10000000,
1333
1334   // All sections with the GPREL flag are grouped into a global data area
1335   // for faster accesses
1336   SHF_HEX_GPREL = 0x10000000,
1337
1338   // Section contains text/data which may be replicated in other sections.
1339   // Linker must retain only one copy.
1340   SHF_MIPS_NODUPES = 0x01000000,
1341
1342   // Linker must generate implicit hidden weak names.
1343   SHF_MIPS_NAMES   = 0x02000000,
1344
1345   // Section data local to process.
1346   SHF_MIPS_LOCAL   = 0x04000000,
1347
1348   // Do not strip this section.
1349   SHF_MIPS_NOSTRIP = 0x08000000,
1350
1351   // Section must be part of global data area.
1352   SHF_MIPS_GPREL   = 0x10000000,
1353
1354   // This section should be merged.
1355   SHF_MIPS_MERGE   = 0x20000000,
1356
1357   // Address size to be inferred from section entry size.
1358   SHF_MIPS_ADDR    = 0x40000000,
1359
1360   // Section data is string data by default.
1361   SHF_MIPS_STRING  = 0x80000000
1362 };
1363
1364 // Section Group Flags
1365 enum LLVM_ENUM_INT_TYPE(unsigned) {
1366   GRP_COMDAT = 0x1,
1367   GRP_MASKOS = 0x0ff00000,
1368   GRP_MASKPROC = 0xf0000000
1369 };
1370
1371 // Symbol table entries for ELF32.
1372 struct Elf32_Sym {
1373   Elf32_Word    st_name;  // Symbol name (index into string table)
1374   Elf32_Addr    st_value; // Value or address associated with the symbol
1375   Elf32_Word    st_size;  // Size of the symbol
1376   unsigned char st_info;  // Symbol's type and binding attributes
1377   unsigned char st_other; // Must be zero; reserved
1378   Elf32_Half    st_shndx; // Which section (header table index) it's defined in
1379
1380   // These accessors and mutators correspond to the ELF32_ST_BIND,
1381   // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
1382   unsigned char getBinding() const { return st_info >> 4; }
1383   unsigned char getType() const { return st_info & 0x0f; }
1384   void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
1385   void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
1386   void setBindingAndType(unsigned char b, unsigned char t) {
1387     st_info = (b << 4) + (t & 0x0f);
1388   }
1389 };
1390
1391 // Symbol table entries for ELF64.
1392 struct Elf64_Sym {
1393   Elf64_Word      st_name;  // Symbol name (index into string table)
1394   unsigned char   st_info;  // Symbol's type and binding attributes
1395   unsigned char   st_other; // Must be zero; reserved
1396   Elf64_Half      st_shndx; // Which section (header tbl index) it's defined in
1397   Elf64_Addr      st_value; // Value or address associated with the symbol
1398   Elf64_Xword     st_size;  // Size of the symbol
1399
1400   // These accessors and mutators are identical to those defined for ELF32
1401   // symbol table entries.
1402   unsigned char getBinding() const { return st_info >> 4; }
1403   unsigned char getType() const { return st_info & 0x0f; }
1404   void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
1405   void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
1406   void setBindingAndType(unsigned char b, unsigned char t) {
1407     st_info = (b << 4) + (t & 0x0f);
1408   }
1409 };
1410
1411 // The size (in bytes) of symbol table entries.
1412 enum {
1413   SYMENTRY_SIZE32 = 16, // 32-bit symbol entry size
1414   SYMENTRY_SIZE64 = 24  // 64-bit symbol entry size.
1415 };
1416
1417 // Symbol bindings.
1418 enum {
1419   STB_LOCAL = 0,   // Local symbol, not visible outside obj file containing def
1420   STB_GLOBAL = 1,  // Global symbol, visible to all object files being combined
1421   STB_WEAK = 2,    // Weak symbol, like global but lower-precedence
1422   STB_LOOS   = 10, // Lowest operating system-specific binding type
1423   STB_HIOS   = 12, // Highest operating system-specific binding type
1424   STB_LOPROC = 13, // Lowest processor-specific binding type
1425   STB_HIPROC = 15  // Highest processor-specific binding type
1426 };
1427
1428 // Symbol types.
1429 enum {
1430   STT_NOTYPE  = 0,   // Symbol's type is not specified
1431   STT_OBJECT  = 1,   // Symbol is a data object (variable, array, etc.)
1432   STT_FUNC    = 2,   // Symbol is executable code (function, etc.)
1433   STT_SECTION = 3,   // Symbol refers to a section
1434   STT_FILE    = 4,   // Local, absolute symbol that refers to a file
1435   STT_COMMON  = 5,   // An uninitialized common block
1436   STT_TLS     = 6,   // Thread local data object
1437   STT_LOOS    = 7,   // Lowest operating system-specific symbol type
1438   STT_HIOS    = 8,   // Highest operating system-specific symbol type
1439   STT_GNU_IFUNC = 10, // GNU indirect function
1440   STT_LOPROC  = 13,  // Lowest processor-specific symbol type
1441   STT_HIPROC  = 15   // Highest processor-specific symbol type
1442 };
1443
1444 enum {
1445   STV_DEFAULT   = 0,  // Visibility is specified by binding type
1446   STV_INTERNAL  = 1,  // Defined by processor supplements
1447   STV_HIDDEN    = 2,  // Not visible to other components
1448   STV_PROTECTED = 3   // Visible in other components but not preemptable
1449 };
1450
1451 // Symbol number.
1452 enum {
1453   STN_UNDEF = 0
1454 };
1455
1456 // Relocation entry, without explicit addend.
1457 struct Elf32_Rel {
1458   Elf32_Addr r_offset; // Location (file byte offset, or program virtual addr)
1459   Elf32_Word r_info;   // Symbol table index and type of relocation to apply
1460
1461   // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
1462   // and ELF32_R_INFO macros defined in the ELF specification:
1463   Elf32_Word getSymbol() const { return (r_info >> 8); }
1464   unsigned char getType() const { return (unsigned char) (r_info & 0x0ff); }
1465   void setSymbol(Elf32_Word s) { setSymbolAndType(s, getType()); }
1466   void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
1467   void setSymbolAndType(Elf32_Word s, unsigned char t) {
1468     r_info = (s << 8) + t;
1469   }
1470 };
1471
1472 // Relocation entry with explicit addend.
1473 struct Elf32_Rela {
1474   Elf32_Addr  r_offset; // Location (file byte offset, or program virtual addr)
1475   Elf32_Word  r_info;   // Symbol table index and type of relocation to apply
1476   Elf32_Sword r_addend; // Compute value for relocatable field by adding this
1477
1478   // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
1479   // and ELF32_R_INFO macros defined in the ELF specification:
1480   Elf32_Word getSymbol() const { return (r_info >> 8); }
1481   unsigned char getType() const { return (unsigned char) (r_info & 0x0ff); }
1482   void setSymbol(Elf32_Word s) { setSymbolAndType(s, getType()); }
1483   void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
1484   void setSymbolAndType(Elf32_Word s, unsigned char t) {
1485     r_info = (s << 8) + t;
1486   }
1487 };
1488
1489 // Relocation entry, without explicit addend.
1490 struct Elf64_Rel {
1491   Elf64_Addr r_offset; // Location (file byte offset, or program virtual addr).
1492   Elf64_Xword r_info;   // Symbol table index and type of relocation to apply.
1493
1494   // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
1495   // and ELF64_R_INFO macros defined in the ELF specification:
1496   Elf64_Word getSymbol() const { return (r_info >> 32); }
1497   Elf64_Word getType() const {
1498     return (Elf64_Word) (r_info & 0xffffffffL);
1499   }
1500   void setSymbol(Elf64_Word s) { setSymbolAndType(s, getType()); }
1501   void setType(Elf64_Word t) { setSymbolAndType(getSymbol(), t); }
1502   void setSymbolAndType(Elf64_Word s, Elf64_Word t) {
1503     r_info = ((Elf64_Xword)s << 32) + (t&0xffffffffL);
1504   }
1505 };
1506
1507 // Relocation entry with explicit addend.
1508 struct Elf64_Rela {
1509   Elf64_Addr  r_offset; // Location (file byte offset, or program virtual addr).
1510   Elf64_Xword  r_info;   // Symbol table index and type of relocation to apply.
1511   Elf64_Sxword r_addend; // Compute value for relocatable field by adding this.
1512
1513   // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
1514   // and ELF64_R_INFO macros defined in the ELF specification:
1515   Elf64_Word getSymbol() const { return (r_info >> 32); }
1516   Elf64_Word getType() const {
1517     return (Elf64_Word) (r_info & 0xffffffffL);
1518   }
1519   void setSymbol(Elf64_Word s) { setSymbolAndType(s, getType()); }
1520   void setType(Elf64_Word t) { setSymbolAndType(getSymbol(), t); }
1521   void setSymbolAndType(Elf64_Word s, Elf64_Word t) {
1522     r_info = ((Elf64_Xword)s << 32) + (t&0xffffffffL);
1523   }
1524 };
1525
1526 // Program header for ELF32.
1527 struct Elf32_Phdr {
1528   Elf32_Word p_type;   // Type of segment
1529   Elf32_Off  p_offset; // File offset where segment is located, in bytes
1530   Elf32_Addr p_vaddr;  // Virtual address of beginning of segment
1531   Elf32_Addr p_paddr;  // Physical address of beginning of segment (OS-specific)
1532   Elf32_Word p_filesz; // Num. of bytes in file image of segment (may be zero)
1533   Elf32_Word p_memsz;  // Num. of bytes in mem image of segment (may be zero)
1534   Elf32_Word p_flags;  // Segment flags
1535   Elf32_Word p_align;  // Segment alignment constraint
1536 };
1537
1538 // Program header for ELF64.
1539 struct Elf64_Phdr {
1540   Elf64_Word   p_type;   // Type of segment
1541   Elf64_Word   p_flags;  // Segment flags
1542   Elf64_Off    p_offset; // File offset where segment is located, in bytes
1543   Elf64_Addr   p_vaddr;  // Virtual address of beginning of segment
1544   Elf64_Addr   p_paddr;  // Physical addr of beginning of segment (OS-specific)
1545   Elf64_Xword  p_filesz; // Num. of bytes in file image of segment (may be zero)
1546   Elf64_Xword  p_memsz;  // Num. of bytes in mem image of segment (may be zero)
1547   Elf64_Xword  p_align;  // Segment alignment constraint
1548 };
1549
1550 // Segment types.
1551 enum {
1552   PT_NULL    = 0, // Unused segment.
1553   PT_LOAD    = 1, // Loadable segment.
1554   PT_DYNAMIC = 2, // Dynamic linking information.
1555   PT_INTERP  = 3, // Interpreter pathname.
1556   PT_NOTE    = 4, // Auxiliary information.
1557   PT_SHLIB   = 5, // Reserved.
1558   PT_PHDR    = 6, // The program header table itself.
1559   PT_TLS     = 7, // The thread-local storage template.
1560   PT_LOOS    = 0x60000000, // Lowest operating system-specific pt entry type.
1561   PT_HIOS    = 0x6fffffff, // Highest operating system-specific pt entry type.
1562   PT_LOPROC  = 0x70000000, // Lowest processor-specific program hdr entry type.
1563   PT_HIPROC  = 0x7fffffff, // Highest processor-specific program hdr entry type.
1564
1565   // x86-64 program header types.
1566   // These all contain stack unwind tables.
1567   PT_GNU_EH_FRAME  = 0x6474e550,
1568   PT_SUNW_EH_FRAME = 0x6474e550,
1569   PT_SUNW_UNWIND   = 0x6464e550,
1570
1571   PT_GNU_STACK  = 0x6474e551, // Indicates stack executability.
1572   PT_GNU_RELRO  = 0x6474e552, // Read-only after relocation.
1573
1574   // ARM program header types.
1575   PT_ARM_ARCHEXT = 0x70000000, // Platform architecture compatibility info
1576   // These all contain stack unwind tables.
1577   PT_ARM_EXIDX   = 0x70000001,
1578   PT_ARM_UNWIND  = 0x70000001,
1579
1580   // MIPS program header types.
1581   PT_MIPS_REGINFO  = 0x70000000,  // Register usage information.
1582   PT_MIPS_RTPROC   = 0x70000001,  // Runtime procedure table.
1583   PT_MIPS_OPTIONS  = 0x70000002   // Options segment.
1584 };
1585
1586 // Segment flag bits.
1587 enum LLVM_ENUM_INT_TYPE(unsigned) {
1588   PF_X        = 1,         // Execute
1589   PF_W        = 2,         // Write
1590   PF_R        = 4,         // Read
1591   PF_MASKOS   = 0x0ff00000,// Bits for operating system-specific semantics.
1592   PF_MASKPROC = 0xf0000000 // Bits for processor-specific semantics.
1593 };
1594
1595 // Dynamic table entry for ELF32.
1596 struct Elf32_Dyn
1597 {
1598   Elf32_Sword d_tag;            // Type of dynamic table entry.
1599   union
1600   {
1601       Elf32_Word d_val;         // Integer value of entry.
1602       Elf32_Addr d_ptr;         // Pointer value of entry.
1603   } d_un;
1604 };
1605
1606 // Dynamic table entry for ELF64.
1607 struct Elf64_Dyn
1608 {
1609   Elf64_Sxword d_tag;           // Type of dynamic table entry.
1610   union
1611   {
1612       Elf64_Xword d_val;        // Integer value of entry.
1613       Elf64_Addr  d_ptr;        // Pointer value of entry.
1614   } d_un;
1615 };
1616
1617 // Dynamic table entry tags.
1618 enum {
1619   DT_NULL         = 0,        // Marks end of dynamic array.
1620   DT_NEEDED       = 1,        // String table offset of needed library.
1621   DT_PLTRELSZ     = 2,        // Size of relocation entries in PLT.
1622   DT_PLTGOT       = 3,        // Address associated with linkage table.
1623   DT_HASH         = 4,        // Address of symbolic hash table.
1624   DT_STRTAB       = 5,        // Address of dynamic string table.
1625   DT_SYMTAB       = 6,        // Address of dynamic symbol table.
1626   DT_RELA         = 7,        // Address of relocation table (Rela entries).
1627   DT_RELASZ       = 8,        // Size of Rela relocation table.
1628   DT_RELAENT      = 9,        // Size of a Rela relocation entry.
1629   DT_STRSZ        = 10,       // Total size of the string table.
1630   DT_SYMENT       = 11,       // Size of a symbol table entry.
1631   DT_INIT         = 12,       // Address of initialization function.
1632   DT_FINI         = 13,       // Address of termination function.
1633   DT_SONAME       = 14,       // String table offset of a shared objects name.
1634   DT_RPATH        = 15,       // String table offset of library search path.
1635   DT_SYMBOLIC     = 16,       // Changes symbol resolution algorithm.
1636   DT_REL          = 17,       // Address of relocation table (Rel entries).
1637   DT_RELSZ        = 18,       // Size of Rel relocation table.
1638   DT_RELENT       = 19,       // Size of a Rel relocation entry.
1639   DT_PLTREL       = 20,       // Type of relocation entry used for linking.
1640   DT_DEBUG        = 21,       // Reserved for debugger.
1641   DT_TEXTREL      = 22,       // Relocations exist for non-writable segments.
1642   DT_JMPREL       = 23,       // Address of relocations associated with PLT.
1643   DT_BIND_NOW     = 24,       // Process all relocations before execution.
1644   DT_INIT_ARRAY   = 25,       // Pointer to array of initialization functions.
1645   DT_FINI_ARRAY   = 26,       // Pointer to array of termination functions.
1646   DT_INIT_ARRAYSZ = 27,       // Size of DT_INIT_ARRAY.
1647   DT_FINI_ARRAYSZ = 28,       // Size of DT_FINI_ARRAY.
1648   DT_RUNPATH      = 29,       // String table offset of lib search path.
1649   DT_FLAGS        = 30,       // Flags.
1650   DT_ENCODING     = 32,       // Values from here to DT_LOOS follow the rules
1651                               // for the interpretation of the d_un union.
1652
1653   DT_PREINIT_ARRAY = 32,      // Pointer to array of preinit functions.
1654   DT_PREINIT_ARRAYSZ = 33,    // Size of the DT_PREINIT_ARRAY array.
1655
1656   DT_LOOS         = 0x60000000, // Start of environment specific tags.
1657   DT_HIOS         = 0x6FFFFFFF, // End of environment specific tags.
1658   DT_LOPROC       = 0x70000000, // Start of processor specific tags.
1659   DT_HIPROC       = 0x7FFFFFFF, // End of processor specific tags.
1660
1661   DT_RELACOUNT    = 0x6FFFFFF9, // ELF32_Rela count.
1662   DT_RELCOUNT     = 0x6FFFFFFA, // ELF32_Rel count.
1663
1664   DT_FLAGS_1      = 0X6FFFFFFB, // Flags_1.
1665   DT_VERSYM       = 0x6FFFFFF0, // The address of .gnu.version section.
1666   DT_VERDEF       = 0X6FFFFFFC, // The address of the version definition table.
1667   DT_VERDEFNUM    = 0X6FFFFFFD, // The number of entries in DT_VERDEF.
1668   DT_VERNEED      = 0X6FFFFFFE, // The address of the version Dependency table.
1669   DT_VERNEEDNUM   = 0X6FFFFFFF, // The number of entries in DT_VERNEED.
1670
1671   // Mips specific dynamic table entry tags.
1672   DT_MIPS_RLD_VERSION   = 0x70000001, // 32 bit version number for runtime
1673                                       // linker interface.
1674   DT_MIPS_TIME_STAMP    = 0x70000002, // Time stamp.
1675   DT_MIPS_ICHECKSUM     = 0x70000003, // Checksum of external strings
1676                                       // and common sizes.
1677   DT_MIPS_IVERSION      = 0x70000004, // Index of version string
1678                                       // in string table.
1679   DT_MIPS_FLAGS         = 0x70000005, // 32 bits of flags.
1680   DT_MIPS_BASE_ADDRESS  = 0x70000006, // Base address of the segment.
1681   DT_MIPS_MSYM          = 0x70000007, // Address of .msym section.
1682   DT_MIPS_CONFLICT      = 0x70000008, // Address of .conflict section.
1683   DT_MIPS_LIBLIST       = 0x70000009, // Address of .liblist section.
1684   DT_MIPS_LOCAL_GOTNO   = 0x7000000a, // Number of local global offset
1685                                       // table entries.
1686   DT_MIPS_CONFLICTNO    = 0x7000000b, // Number of entries
1687                                       // in the .conflict section.
1688   DT_MIPS_LIBLISTNO     = 0x70000010, // Number of entries
1689                                       // in the .liblist section.
1690   DT_MIPS_SYMTABNO      = 0x70000011, // Number of entries
1691                                       // in the .dynsym section.
1692   DT_MIPS_UNREFEXTNO    = 0x70000012, // Index of first external dynamic symbol
1693                                       // not referenced locally.
1694   DT_MIPS_GOTSYM        = 0x70000013, // Index of first dynamic symbol
1695                                       // in global offset table.
1696   DT_MIPS_HIPAGENO      = 0x70000014, // Number of page table entries
1697                                       // in global offset table.
1698   DT_MIPS_RLD_MAP       = 0x70000016, // Address of run time loader map,
1699                                       // used for debugging.
1700   DT_MIPS_DELTA_CLASS       = 0x70000017, // Delta C++ class definition.
1701   DT_MIPS_DELTA_CLASS_NO    = 0x70000018, // Number of entries
1702                                           // in DT_MIPS_DELTA_CLASS.
1703   DT_MIPS_DELTA_INSTANCE    = 0x70000019, // Delta C++ class instances.
1704   DT_MIPS_DELTA_INSTANCE_NO = 0x7000001A, // Number of entries
1705                                           // in DT_MIPS_DELTA_INSTANCE.
1706   DT_MIPS_DELTA_RELOC       = 0x7000001B, // Delta relocations.
1707   DT_MIPS_DELTA_RELOC_NO    = 0x7000001C, // Number of entries
1708                                           // in DT_MIPS_DELTA_RELOC.
1709   DT_MIPS_DELTA_SYM         = 0x7000001D, // Delta symbols that Delta
1710                                           // relocations refer to.
1711   DT_MIPS_DELTA_SYM_NO      = 0x7000001E, // Number of entries
1712                                           // in DT_MIPS_DELTA_SYM.
1713   DT_MIPS_DELTA_CLASSSYM    = 0x70000020, // Delta symbols that hold
1714                                           // class declarations.
1715   DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021, // Number of entries
1716                                           // in DT_MIPS_DELTA_CLASSSYM.
1717   DT_MIPS_CXX_FLAGS         = 0x70000022, // Flags indicating information
1718                                           // about C++ flavor.
1719   DT_MIPS_PIXIE_INIT        = 0x70000023, // Pixie information.
1720   DT_MIPS_SYMBOL_LIB        = 0x70000024, // Address of .MIPS.symlib
1721   DT_MIPS_LOCALPAGE_GOTIDX  = 0x70000025, // The GOT index of the first PTE
1722                                           // for a segment
1723   DT_MIPS_LOCAL_GOTIDX      = 0x70000026, // The GOT index of the first PTE
1724                                           // for a local symbol
1725   DT_MIPS_HIDDEN_GOTIDX     = 0x70000027, // The GOT index of the first PTE
1726                                           // for a hidden symbol
1727   DT_MIPS_PROTECTED_GOTIDX  = 0x70000028, // The GOT index of the first PTE
1728                                           // for a protected symbol
1729   DT_MIPS_OPTIONS           = 0x70000029, // Address of `.MIPS.options'.
1730   DT_MIPS_INTERFACE         = 0x7000002A, // Address of `.interface'.
1731   DT_MIPS_DYNSTR_ALIGN      = 0x7000002B, // Unknown.
1732   DT_MIPS_INTERFACE_SIZE    = 0x7000002C, // Size of the .interface section.
1733   DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002D, // Size of rld_text_resolve
1734                                               // function stored in the GOT.
1735   DT_MIPS_PERF_SUFFIX       = 0x7000002E, // Default suffix of DSO to be added
1736                                           // by rld on dlopen() calls.
1737   DT_MIPS_COMPACT_SIZE      = 0x7000002F, // Size of compact relocation
1738                                           // section (O32).
1739   DT_MIPS_GP_VALUE          = 0x70000030, // GP value for auxiliary GOTs.
1740   DT_MIPS_AUX_DYNAMIC       = 0x70000031, // Address of auxiliary .dynamic.
1741   DT_MIPS_PLTGOT            = 0x70000032, // Address of the base of the PLTGOT.
1742   DT_MIPS_RWPLT             = 0x70000034  // Points to the base
1743                                           // of a writable PLT.
1744 };
1745
1746 // DT_FLAGS values.
1747 enum {
1748   DF_ORIGIN     = 0x01, // The object may reference $ORIGIN.
1749   DF_SYMBOLIC   = 0x02, // Search the shared lib before searching the exe.
1750   DF_TEXTREL    = 0x04, // Relocations may modify a non-writable segment.
1751   DF_BIND_NOW   = 0x08, // Process all relocations on load.
1752   DF_STATIC_TLS = 0x10  // Reject attempts to load dynamically.
1753 };
1754
1755 // State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 entry.
1756 enum {
1757   DF_1_NOW        = 0x00000001, // Set RTLD_NOW for this object.
1758   DF_1_GLOBAL     = 0x00000002, // Set RTLD_GLOBAL for this object.
1759   DF_1_GROUP      = 0x00000004, // Set RTLD_GROUP for this object.
1760   DF_1_NODELETE   = 0x00000008, // Set RTLD_NODELETE for this object.
1761   DF_1_LOADFLTR   = 0x00000010, // Trigger filtee loading at runtime.
1762   DF_1_INITFIRST  = 0x00000020, // Set RTLD_INITFIRST for this object.
1763   DF_1_NOOPEN     = 0x00000040, // Set RTLD_NOOPEN for this object.
1764   DF_1_ORIGIN     = 0x00000080, // $ORIGIN must be handled.
1765   DF_1_DIRECT     = 0x00000100, // Direct binding enabled.
1766   DF_1_TRANS      = 0x00000200,
1767   DF_1_INTERPOSE  = 0x00000400, // Object is used to interpose.
1768   DF_1_NODEFLIB   = 0x00000800, // Ignore default lib search path.
1769   DF_1_NODUMP     = 0x00001000, // Object can't be dldump'ed.
1770   DF_1_CONFALT    = 0x00002000, // Configuration alternative created.
1771   DF_1_ENDFILTEE  = 0x00004000, // Filtee terminates filters search.
1772   DF_1_DISPRELDNE = 0x00008000, // Disp reloc applied at build time.
1773   DF_1_DISPRELPND = 0x00010000  // Disp reloc applied at run-time.
1774 };
1775
1776 // DT_MIPS_FLAGS values.
1777 enum {
1778   RHF_NONE                    = 0x00000000, // No flags.
1779   RHF_QUICKSTART              = 0x00000001, // Uses shortcut pointers.
1780   RHF_NOTPOT                  = 0x00000002, // Hash size is not a power of two.
1781   RHS_NO_LIBRARY_REPLACEMENT  = 0x00000004, // Ignore LD_LIBRARY_PATH.
1782   RHF_NO_MOVE                 = 0x00000008, // DSO address may not be relocated.
1783   RHF_SGI_ONLY                = 0x00000010, // SGI specific features.
1784   RHF_GUARANTEE_INIT          = 0x00000020, // Guarantee that .init will finish
1785                                             // executing before any non-init
1786                                             // code in DSO is called.
1787   RHF_DELTA_C_PLUS_PLUS       = 0x00000040, // Contains Delta C++ code.
1788   RHF_GUARANTEE_START_INIT    = 0x00000080, // Guarantee that .init will start
1789                                             // executing before any non-init
1790                                             // code in DSO is called.
1791   RHF_PIXIE                   = 0x00000100, // Generated by pixie.
1792   RHF_DEFAULT_DELAY_LOAD      = 0x00000200, // Delay-load DSO by default.
1793   RHF_REQUICKSTART            = 0x00000400, // Object may be requickstarted
1794   RHF_REQUICKSTARTED          = 0x00000800, // Object has been requickstarted
1795   RHF_CORD                    = 0x00001000, // Generated by cord.
1796   RHF_NO_UNRES_UNDEF          = 0x00002000, // Object contains no unresolved
1797                                             // undef symbols.
1798   RHF_RLD_ORDER_SAFE          = 0x00004000  // Symbol table is in a safe order.
1799 };
1800
1801 // ElfXX_VerDef structure version (GNU versioning)
1802 enum {
1803   VER_DEF_NONE    = 0,
1804   VER_DEF_CURRENT = 1
1805 };
1806
1807 // VerDef Flags (ElfXX_VerDef::vd_flags)
1808 enum {
1809   VER_FLG_BASE = 0x1,
1810   VER_FLG_WEAK = 0x2,
1811   VER_FLG_INFO = 0x4
1812 };
1813
1814 // Special constants for the version table. (SHT_GNU_versym/.gnu.version)
1815 enum {
1816   VER_NDX_LOCAL  = 0,      // Unversioned local symbol
1817   VER_NDX_GLOBAL = 1,      // Unversioned global symbol
1818   VERSYM_VERSION = 0x7fff, // Version Index mask
1819   VERSYM_HIDDEN  = 0x8000  // Hidden bit (non-default version)
1820 };
1821
1822 // ElfXX_VerNeed structure version (GNU versioning)
1823 enum {
1824   VER_NEED_NONE = 0,
1825   VER_NEED_CURRENT = 1
1826 };
1827
1828 } // end namespace ELF
1829
1830 } // end namespace llvm
1831
1832 #endif