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      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 // BEGIN android-changed
     21 #ifndef ART_RUNTIME_ELF_H_
     22 #define ART_RUNTIME_ELF_H_
     23 // END android-changed
     24 
     25 // BEGIN android-changed
     26 #include <stdint.h>
     27 #include <string.h>
     28 // END android-changed
     29 
     30 typedef uint32_t Elf32_Addr; // Program address
     31 typedef uint32_t Elf32_Off;  // File offset
     32 typedef uint16_t Elf32_Half;
     33 typedef uint32_t Elf32_Word;
     34 typedef int32_t  Elf32_Sword;
     35 
     36 typedef uint64_t Elf64_Addr;
     37 typedef uint64_t Elf64_Off;
     38 typedef uint16_t Elf64_Half;
     39 typedef uint32_t Elf64_Word;
     40 typedef int32_t  Elf64_Sword;
     41 typedef uint64_t Elf64_Xword;
     42 typedef int64_t  Elf64_Sxword;
     43 
     44 // Object file magic string.
     45 static constexpr char ElfMagic[] = { 0x7f, 'E', 'L', 'F', '\0' };
     46 
     47 // e_ident size and indices.
     48 enum {
     49   EI_MAG0       = 0,          // File identification index.
     50   EI_MAG1       = 1,          // File identification index.
     51   EI_MAG2       = 2,          // File identification index.
     52   EI_MAG3       = 3,          // File identification index.
     53   EI_CLASS      = 4,          // File class.
     54   EI_DATA       = 5,          // Data encoding.
     55   EI_VERSION    = 6,          // File version.
     56   EI_OSABI      = 7,          // OS/ABI identification.
     57   EI_ABIVERSION = 8,          // ABI version.
     58   EI_PAD        = 9,          // Start of padding bytes.
     59   EI_NIDENT     = 16          // Number of bytes in e_ident.
     60 };
     61 
     62 // BEGIN android-added for <elf.h> compat
     63 constexpr char ELFMAG0 = ElfMagic[EI_MAG0];
     64 constexpr char ELFMAG1 = ElfMagic[EI_MAG1];
     65 constexpr char ELFMAG2 = ElfMagic[EI_MAG2];
     66 constexpr char ELFMAG3 = ElfMagic[EI_MAG3];
     67 constexpr char ELFMAG[] = "\177ELF";
     68 constexpr int SELFMAG = 4;
     69 constexpr int NT_PRSTATUS = 1;
     70 // END android-added for <elf.h> compat
     71 
     72 struct Elf32_Ehdr {
     73   unsigned char e_ident[EI_NIDENT]; // ELF Identification bytes
     74   Elf32_Half    e_type;      // Type of file (see ET_* below)
     75   Elf32_Half    e_machine;   // Required architecture for this file (see EM_*)
     76   Elf32_Word    e_version;   // Must be equal to 1
     77   Elf32_Addr    e_entry;     // Address to jump to in order to start program
     78   Elf32_Off     e_phoff;     // Program header table's file offset, in bytes
     79   Elf32_Off     e_shoff;     // Section header table's file offset, in bytes
     80   Elf32_Word    e_flags;     // Processor-specific flags
     81   Elf32_Half    e_ehsize;    // Size of ELF header, in bytes
     82   Elf32_Half    e_phentsize; // Size of an entry in the program header table
     83   Elf32_Half    e_phnum;     // Number of entries in the program header table
     84   Elf32_Half    e_shentsize; // Size of an entry in the section header table
     85   Elf32_Half    e_shnum;     // Number of entries in the section header table
     86   Elf32_Half    e_shstrndx;  // Sect hdr table index of sect name string table
     87   bool checkMagic() const {
     88     return (memcmp(e_ident, ElfMagic, strlen(ElfMagic))) == 0;
     89   }
     90   unsigned char getFileClass() const { return e_ident[EI_CLASS]; }
     91   unsigned char getDataEncoding() const { return e_ident[EI_DATA]; }
     92 };
     93 
     94 // 64-bit ELF header. Fields are the same as for ELF32, but with different
     95 // types (see above).
     96 struct Elf64_Ehdr {
     97   unsigned char e_ident[EI_NIDENT];
     98   Elf64_Half    e_type;
     99   Elf64_Half    e_machine;
    100   Elf64_Word    e_version;
    101   Elf64_Addr    e_entry;
    102   Elf64_Off     e_phoff;
    103   Elf64_Off     e_shoff;
    104   Elf64_Word    e_flags;
    105   Elf64_Half    e_ehsize;
    106   Elf64_Half    e_phentsize;
    107   Elf64_Half    e_phnum;
    108   Elf64_Half    e_shentsize;
    109   Elf64_Half    e_shnum;
    110   Elf64_Half    e_shstrndx;
    111   bool checkMagic() const {
    112     return (memcmp(e_ident, ElfMagic, strlen(ElfMagic))) == 0;
    113   }
    114   unsigned char getFileClass() const { return e_ident[EI_CLASS]; }
    115   unsigned char getDataEncoding() const { return e_ident[EI_DATA]; }
    116 };
    117 
    118 // File types
    119 enum {
    120   ET_NONE   = 0,      // No file type
    121   ET_REL    = 1,      // Relocatable file
    122   ET_EXEC   = 2,      // Executable file
    123   ET_DYN    = 3,      // Shared object file
    124   ET_CORE   = 4,      // Core file
    125   ET_LOPROC = 0xff00, // Beginning of processor-specific codes
    126   ET_HIPROC = 0xffff  // Processor-specific
    127 };
    128 
    129 // Versioning
    130 enum {
    131   EV_NONE = 0,
    132   EV_CURRENT = 1
    133 };
    134 
    135 // Machine architectures
    136 enum {
    137   EM_NONE          = 0, // No machine
    138   EM_M32           = 1, // AT&T WE 32100
    139   EM_SPARC         = 2, // SPARC
    140   EM_386           = 3, // Intel 386
    141   EM_68K           = 4, // Motorola 68000
    142   EM_88K           = 5, // Motorola 88000
    143   EM_486           = 6, // Intel 486 (deprecated)
    144   EM_860           = 7, // Intel 80860
    145   EM_MIPS          = 8, // MIPS R3000
    146   EM_S370          = 9, // IBM System/370
    147   EM_MIPS_RS3_LE   = 10, // MIPS RS3000 Little-endian
    148   EM_PARISC        = 15, // Hewlett-Packard PA-RISC
    149   EM_VPP500        = 17, // Fujitsu VPP500
    150   EM_SPARC32PLUS   = 18, // Enhanced instruction set SPARC
    151   EM_960           = 19, // Intel 80960
    152   EM_PPC           = 20, // PowerPC
    153   EM_PPC64         = 21, // PowerPC64
    154   EM_S390          = 22, // IBM System/390
    155   EM_SPU           = 23, // IBM SPU/SPC
    156   EM_V800          = 36, // NEC V800
    157   EM_FR20          = 37, // Fujitsu FR20
    158   EM_RH32          = 38, // TRW RH-32
    159   EM_RCE           = 39, // Motorola RCE
    160   EM_ARM           = 40, // ARM
    161   EM_ALPHA         = 41, // DEC Alpha
    162   EM_SH            = 42, // Hitachi SH
    163   EM_SPARCV9       = 43, // SPARC V9
    164   EM_TRICORE       = 44, // Siemens TriCore
    165   EM_ARC           = 45, // Argonaut RISC Core
    166   EM_H8_300        = 46, // Hitachi H8/300
    167   EM_H8_300H       = 47, // Hitachi H8/300H
    168   EM_H8S           = 48, // Hitachi H8S
    169   EM_H8_500        = 49, // Hitachi H8/500
    170   EM_IA_64         = 50, // Intel IA-64 processor architecture
    171   EM_MIPS_X        = 51, // Stanford MIPS-X
    172   EM_COLDFIRE      = 52, // Motorola ColdFire
    173   EM_68HC12        = 53, // Motorola M68HC12
    174   EM_MMA           = 54, // Fujitsu MMA Multimedia Accelerator
    175   EM_PCP           = 55, // Siemens PCP
    176   EM_NCPU          = 56, // Sony nCPU embedded RISC processor
    177   EM_NDR1          = 57, // Denso NDR1 microprocessor
    178   EM_STARCORE      = 58, // Motorola Star*Core processor
    179   EM_ME16          = 59, // Toyota ME16 processor
    180   EM_ST100         = 60, // STMicroelectronics ST100 processor
    181   EM_TINYJ         = 61, // Advanced Logic Corp. TinyJ embedded processor family
    182   EM_X86_64        = 62, // AMD x86-64 architecture
    183   EM_PDSP          = 63, // Sony DSP Processor
    184   EM_PDP10         = 64, // Digital Equipment Corp. PDP-10
    185   EM_PDP11         = 65, // Digital Equipment Corp. PDP-11
    186   EM_FX66          = 66, // Siemens FX66 microcontroller
    187   EM_ST9PLUS       = 67, // STMicroelectronics ST9+ 8/16 bit microcontroller
    188   EM_ST7           = 68, // STMicroelectronics ST7 8-bit microcontroller
    189   EM_68HC16        = 69, // Motorola MC68HC16 Microcontroller
    190   EM_68HC11        = 70, // Motorola MC68HC11 Microcontroller
    191   EM_68HC08        = 71, // Motorola MC68HC08 Microcontroller
    192   EM_68HC05        = 72, // Motorola MC68HC05 Microcontroller
    193   EM_SVX           = 73, // Silicon Graphics SVx
    194   EM_ST19          = 74, // STMicroelectronics ST19 8-bit microcontroller
    195   EM_VAX           = 75, // Digital VAX
    196   EM_CRIS          = 76, // Axis Communications 32-bit embedded processor
    197   EM_JAVELIN       = 77, // Infineon Technologies 32-bit embedded processor
    198   EM_FIREPATH      = 78, // Element 14 64-bit DSP Processor
    199   EM_ZSP           = 79, // LSI Logic 16-bit DSP Processor
    200   EM_MMIX          = 80, // Donald Knuth's educational 64-bit processor
    201   EM_HUANY         = 81, // Harvard University machine-independent object files
    202   EM_PRISM         = 82, // SiTera Prism
    203   EM_AVR           = 83, // Atmel AVR 8-bit microcontroller
    204   EM_FR30          = 84, // Fujitsu FR30
    205   EM_D10V          = 85, // Mitsubishi D10V
    206   EM_D30V          = 86, // Mitsubishi D30V
    207   EM_V850          = 87, // NEC v850
    208   EM_M32R          = 88, // Mitsubishi M32R
    209   EM_MN10300       = 89, // Matsushita MN10300
    210   EM_MN10200       = 90, // Matsushita MN10200
    211   EM_PJ            = 91, // picoJava
    212   EM_OPENRISC      = 92, // OpenRISC 32-bit embedded processor
    213   EM_ARC_COMPACT   = 93, // ARC International ARCompact processor (old
    214                          // spelling/synonym: EM_ARC_A5)
    215   EM_XTENSA        = 94, // Tensilica Xtensa Architecture
    216   EM_VIDEOCORE     = 95, // Alphamosaic VideoCore processor
    217   EM_TMM_GPP       = 96, // Thompson Multimedia General Purpose Processor
    218   EM_NS32K         = 97, // National Semiconductor 32000 series
    219   EM_TPC           = 98, // Tenor Network TPC processor
    220   EM_SNP1K         = 99, // Trebia SNP 1000 processor
    221   EM_ST200         = 100, // STMicroelectronics (www.st.com) ST200
    222   EM_IP2K          = 101, // Ubicom IP2xxx microcontroller family
    223   EM_MAX           = 102, // MAX Processor
    224   EM_CR            = 103, // National Semiconductor CompactRISC microprocessor
    225   EM_F2MC16        = 104, // Fujitsu F2MC16
    226   EM_MSP430        = 105, // Texas Instruments embedded microcontroller msp430
    227   EM_BLACKFIN      = 106, // Analog Devices Blackfin (DSP) processor
    228   EM_SE_C33        = 107, // S1C33 Family of Seiko Epson processors
    229   EM_SEP           = 108, // Sharp embedded microprocessor
    230   EM_ARCA          = 109, // Arca RISC Microprocessor
    231   EM_UNICORE       = 110, // Microprocessor series from PKU-Unity Ltd. and MPRC
    232                           // of Peking University
    233   EM_EXCESS        = 111, // eXcess: 16/32/64-bit configurable embedded CPU
    234   EM_DXP           = 112, // Icera Semiconductor Inc. Deep Execution Processor
    235   EM_ALTERA_NIOS2  = 113, // Altera Nios II soft-core processor
    236   EM_CRX           = 114, // National Semiconductor CompactRISC CRX
    237   EM_XGATE         = 115, // Motorola XGATE embedded processor
    238   EM_C166          = 116, // Infineon C16x/XC16x processor
    239   EM_M16C          = 117, // Renesas M16C series microprocessors
    240   EM_DSPIC30F      = 118, // Microchip Technology dsPIC30F Digital Signal
    241                           // Controller
    242   EM_CE            = 119, // Freescale Communication Engine RISC core
    243   EM_M32C          = 120, // Renesas M32C series microprocessors
    244   EM_TSK3000       = 131, // Altium TSK3000 core
    245   EM_RS08          = 132, // Freescale RS08 embedded processor
    246   EM_SHARC         = 133, // Analog Devices SHARC family of 32-bit DSP
    247                           // processors
    248   EM_ECOG2         = 134, // Cyan Technology eCOG2 microprocessor
    249   EM_SCORE7        = 135, // Sunplus S+core7 RISC processor
    250   EM_DSP24         = 136, // New Japan Radio (NJR) 24-bit DSP Processor
    251   EM_VIDEOCORE3    = 137, // Broadcom VideoCore III processor
    252   EM_LATTICEMICO32 = 138, // RISC processor for Lattice FPGA architecture
    253   EM_SE_C17        = 139, // Seiko Epson C17 family
    254   EM_TI_C6000      = 140, // The Texas Instruments TMS320C6000 DSP family
    255   EM_TI_C2000      = 141, // The Texas Instruments TMS320C2000 DSP family
    256   EM_TI_C5500      = 142, // The Texas Instruments TMS320C55x DSP family
    257   EM_MMDSP_PLUS    = 160, // STMicroelectronics 64bit VLIW Data Signal Processor
    258   EM_CYPRESS_M8C   = 161, // Cypress M8C microprocessor
    259   EM_R32C          = 162, // Renesas R32C series microprocessors
    260   EM_TRIMEDIA      = 163, // NXP Semiconductors TriMedia architecture family
    261   EM_HEXAGON       = 164, // Qualcomm Hexagon processor
    262   EM_8051          = 165, // Intel 8051 and variants
    263   EM_STXP7X        = 166, // STMicroelectronics STxP7x family of configurable
    264                           // and extensible RISC processors
    265   EM_NDS32         = 167, // Andes Technology compact code size embedded RISC
    266                           // processor family
    267   EM_ECOG1         = 168, // Cyan Technology eCOG1X family
    268   EM_ECOG1X        = 168, // Cyan Technology eCOG1X family
    269   EM_MAXQ30        = 169, // Dallas Semiconductor MAXQ30 Core Micro-controllers
    270   EM_XIMO16        = 170, // New Japan Radio (NJR) 16-bit DSP Processor
    271   EM_MANIK         = 171, // M2000 Reconfigurable RISC Microprocessor
    272   EM_CRAYNV2       = 172, // Cray Inc. NV2 vector architecture
    273   EM_RX            = 173, // Renesas RX family
    274   EM_METAG         = 174, // Imagination Technologies META processor
    275                           // architecture
    276   EM_MCST_ELBRUS   = 175, // MCST Elbrus general purpose hardware architecture
    277   EM_ECOG16        = 176, // Cyan Technology eCOG16 family
    278   EM_CR16          = 177, // National Semiconductor CompactRISC CR16 16-bit
    279                           // microprocessor
    280   EM_ETPU          = 178, // Freescale Extended Time Processing Unit
    281   EM_SLE9X         = 179, // Infineon Technologies SLE9X core
    282   EM_L10M          = 180, // Intel L10M
    283   EM_K10M          = 181, // Intel K10M
    284   EM_AARCH64       = 183, // ARM AArch64
    285   EM_AVR32         = 185, // Atmel Corporation 32-bit microprocessor family
    286   EM_STM8          = 186, // STMicroeletronics STM8 8-bit microcontroller
    287   EM_TILE64        = 187, // Tilera TILE64 multicore architecture family
    288   EM_TILEPRO       = 188, // Tilera TILEPro multicore architecture family
    289   EM_CUDA          = 190, // NVIDIA CUDA architecture
    290   EM_TILEGX        = 191, // Tilera TILE-Gx multicore architecture family
    291   EM_CLOUDSHIELD   = 192, // CloudShield architecture family
    292   EM_COREA_1ST     = 193, // KIPO-KAIST Core-A 1st generation processor family
    293   EM_COREA_2ND     = 194, // KIPO-KAIST Core-A 2nd generation processor family
    294   EM_ARC_COMPACT2  = 195, // Synopsys ARCompact V2
    295   EM_OPEN8         = 196, // Open8 8-bit RISC soft processor core
    296   EM_RL78          = 197, // Renesas RL78 family
    297   EM_VIDEOCORE5    = 198, // Broadcom VideoCore V processor
    298   EM_78KOR         = 199, // Renesas 78KOR family
    299   EM_56800EX       = 200  // Freescale 56800EX Digital Signal Controller (DSC)
    300 };
    301 
    302 // Object file classes.
    303 enum {
    304   ELFCLASSNONE = 0,
    305   ELFCLASS32 = 1, // 32-bit object file
    306   ELFCLASS64 = 2  // 64-bit object file
    307 };
    308 
    309 // Object file byte orderings.
    310 enum {
    311   ELFDATANONE = 0, // Invalid data encoding.
    312   ELFDATA2LSB = 1, // Little-endian object file
    313   ELFDATA2MSB = 2  // Big-endian object file
    314 };
    315 
    316 // OS ABI identification.
    317 enum {
    318   ELFOSABI_NONE = 0,          // UNIX System V ABI
    319   ELFOSABI_HPUX = 1,          // HP-UX operating system
    320   ELFOSABI_NETBSD = 2,        // NetBSD
    321   ELFOSABI_GNU = 3,           // GNU/Linux
    322   ELFOSABI_LINUX = 3,         // Historical alias for ELFOSABI_GNU.
    323   ELFOSABI_HURD = 4,          // GNU/Hurd
    324   ELFOSABI_SOLARIS = 6,       // Solaris
    325   ELFOSABI_AIX = 7,           // AIX
    326   ELFOSABI_IRIX = 8,          // IRIX
    327   ELFOSABI_FREEBSD = 9,       // FreeBSD
    328   ELFOSABI_TRU64 = 10,        // TRU64 UNIX
    329   ELFOSABI_MODESTO = 11,      // Novell Modesto
    330   ELFOSABI_OPENBSD = 12,      // OpenBSD
    331   ELFOSABI_OPENVMS = 13,      // OpenVMS
    332   ELFOSABI_NSK = 14,          // Hewlett-Packard Non-Stop Kernel
    333   ELFOSABI_AROS = 15,         // AROS
    334   ELFOSABI_FENIXOS = 16,      // FenixOS
    335   ELFOSABI_C6000_ELFABI = 64, // Bare-metal TMS320C6000
    336   ELFOSABI_C6000_LINUX = 65,  // Linux TMS320C6000
    337   ELFOSABI_ARM = 97,          // ARM
    338   ELFOSABI_STANDALONE = 255   // Standalone (embedded) application
    339 };
    340 
    341 // X86_64 relocations.
    342 enum {
    343   R_X86_64_NONE       = 0,
    344   R_X86_64_64         = 1,
    345   R_X86_64_PC32       = 2,
    346   R_X86_64_GOT32      = 3,
    347   R_X86_64_PLT32      = 4,
    348   R_X86_64_COPY       = 5,
    349   R_X86_64_GLOB_DAT   = 6,
    350   R_X86_64_JUMP_SLOT  = 7,
    351   R_X86_64_RELATIVE   = 8,
    352   R_X86_64_GOTPCREL   = 9,
    353   R_X86_64_32         = 10,
    354   R_X86_64_32S        = 11,
    355   R_X86_64_16         = 12,
    356   R_X86_64_PC16       = 13,
    357   R_X86_64_8          = 14,
    358   R_X86_64_PC8        = 15,
    359   R_X86_64_DTPMOD64   = 16,
    360   R_X86_64_DTPOFF64   = 17,
    361   R_X86_64_TPOFF64    = 18,
    362   R_X86_64_TLSGD      = 19,
    363   R_X86_64_TLSLD      = 20,
    364   R_X86_64_DTPOFF32   = 21,
    365   R_X86_64_GOTTPOFF   = 22,
    366   R_X86_64_TPOFF32    = 23,
    367   R_X86_64_PC64       = 24,
    368   R_X86_64_GOTOFF64   = 25,
    369   R_X86_64_GOTPC32    = 26,
    370   R_X86_64_GOT64      = 27,
    371   R_X86_64_GOTPCREL64 = 28,
    372   R_X86_64_GOTPC64    = 29,
    373   R_X86_64_GOTPLT64   = 30,
    374   R_X86_64_PLTOFF64   = 31,
    375   R_X86_64_SIZE32     = 32,
    376   R_X86_64_SIZE64     = 33,
    377   R_X86_64_GOTPC32_TLSDESC = 34,
    378   R_X86_64_TLSDESC_CALL    = 35,
    379   R_X86_64_TLSDESC    = 36,
    380   R_X86_64_IRELATIVE  = 37
    381 };
    382 
    383 // i386 relocations.
    384 // TODO: this is just a subset
    385 enum {
    386   R_386_NONE          = 0,
    387   R_386_32            = 1,
    388   R_386_PC32          = 2,
    389   R_386_GOT32         = 3,
    390   R_386_PLT32         = 4,
    391   R_386_COPY          = 5,
    392   R_386_GLOB_DAT      = 6,
    393   R_386_JUMP_SLOT     = 7,
    394   R_386_RELATIVE      = 8,
    395   R_386_GOTOFF        = 9,
    396   R_386_GOTPC         = 10,
    397   R_386_32PLT         = 11,
    398   R_386_TLS_TPOFF     = 14,
    399   R_386_TLS_IE        = 15,
    400   R_386_TLS_GOTIE     = 16,
    401   R_386_TLS_LE        = 17,
    402   R_386_TLS_GD        = 18,
    403   R_386_TLS_LDM       = 19,
    404   R_386_16            = 20,
    405   R_386_PC16          = 21,
    406   R_386_8             = 22,
    407   R_386_PC8           = 23,
    408   R_386_TLS_GD_32     = 24,
    409   R_386_TLS_GD_PUSH   = 25,
    410   R_386_TLS_GD_CALL   = 26,
    411   R_386_TLS_GD_POP    = 27,
    412   R_386_TLS_LDM_32    = 28,
    413   R_386_TLS_LDM_PUSH  = 29,
    414   R_386_TLS_LDM_CALL  = 30,
    415   R_386_TLS_LDM_POP   = 31,
    416   R_386_TLS_LDO_32    = 32,
    417   R_386_TLS_IE_32     = 33,
    418   R_386_TLS_LE_32     = 34,
    419   R_386_TLS_DTPMOD32  = 35,
    420   R_386_TLS_DTPOFF32  = 36,
    421   R_386_TLS_TPOFF32   = 37,
    422   R_386_TLS_GOTDESC   = 39,
    423   R_386_TLS_DESC_CALL = 40,
    424   R_386_TLS_DESC      = 41,
    425   R_386_IRELATIVE     = 42,
    426   R_386_NUM           = 43
    427 };
    428 
    429 // ELF Relocation types for PPC32
    430 enum {
    431   R_PPC_NONE                  = 0,      /* No relocation. */
    432   R_PPC_ADDR32                = 1,
    433   R_PPC_ADDR24                = 2,
    434   R_PPC_ADDR16                = 3,
    435   R_PPC_ADDR16_LO             = 4,
    436   R_PPC_ADDR16_HI             = 5,
    437   R_PPC_ADDR16_HA             = 6,
    438   R_PPC_ADDR14                = 7,
    439   R_PPC_ADDR14_BRTAKEN        = 8,
    440   R_PPC_ADDR14_BRNTAKEN       = 9,
    441   R_PPC_REL24                 = 10,
    442   R_PPC_REL14                 = 11,
    443   R_PPC_REL14_BRTAKEN         = 12,
    444   R_PPC_REL14_BRNTAKEN        = 13,
    445   R_PPC_GOT16                 = 14,
    446   R_PPC_GOT16_LO              = 15,
    447   R_PPC_GOT16_HI              = 16,
    448   R_PPC_GOT16_HA              = 17,
    449   R_PPC_REL32                 = 26,
    450   R_PPC_TLS                   = 67,
    451   R_PPC_DTPMOD32              = 68,
    452   R_PPC_TPREL16               = 69,
    453   R_PPC_TPREL16_LO            = 70,
    454   R_PPC_TPREL16_HI            = 71,
    455   R_PPC_TPREL16_HA            = 72,
    456   R_PPC_TPREL32               = 73,
    457   R_PPC_DTPREL16              = 74,
    458   R_PPC_DTPREL16_LO           = 75,
    459   R_PPC_DTPREL16_HI           = 76,
    460   R_PPC_DTPREL16_HA           = 77,
    461   R_PPC_DTPREL32              = 78,
    462   R_PPC_GOT_TLSGD16           = 79,
    463   R_PPC_GOT_TLSGD16_LO        = 80,
    464   R_PPC_GOT_TLSGD16_HI        = 81,
    465   R_PPC_GOT_TLSGD16_HA        = 82,
    466   R_PPC_GOT_TLSLD16           = 83,
    467   R_PPC_GOT_TLSLD16_LO        = 84,
    468   R_PPC_GOT_TLSLD16_HI        = 85,
    469   R_PPC_GOT_TLSLD16_HA        = 86,
    470   R_PPC_GOT_TPREL16           = 87,
    471   R_PPC_GOT_TPREL16_LO        = 88,
    472   R_PPC_GOT_TPREL16_HI        = 89,
    473   R_PPC_GOT_TPREL16_HA        = 90,
    474   R_PPC_GOT_DTPREL16          = 91,
    475   R_PPC_GOT_DTPREL16_LO       = 92,
    476   R_PPC_GOT_DTPREL16_HI       = 93,
    477   R_PPC_GOT_DTPREL16_HA       = 94,
    478   R_PPC_TLSGD                 = 95,
    479   R_PPC_TLSLD                 = 96,
    480   R_PPC_REL16                 = 249,
    481   R_PPC_REL16_LO              = 250,
    482   R_PPC_REL16_HI              = 251,
    483   R_PPC_REL16_HA              = 252
    484 };
    485 
    486 // ELF Relocation types for PPC64
    487 enum {
    488   R_PPC64_NONE                = 0,
    489   R_PPC64_ADDR32              = 1,
    490   R_PPC64_ADDR24              = 2,
    491   R_PPC64_ADDR16              = 3,
    492   R_PPC64_ADDR16_LO           = 4,
    493   R_PPC64_ADDR16_HI           = 5,
    494   R_PPC64_ADDR16_HA           = 6,
    495   R_PPC64_ADDR14              = 7,
    496   R_PPC64_ADDR14_BRTAKEN      = 8,
    497   R_PPC64_ADDR14_BRNTAKEN     = 9,
    498   R_PPC64_REL24               = 10,
    499   R_PPC64_REL14               = 11,
    500   R_PPC64_REL14_BRTAKEN       = 12,
    501   R_PPC64_REL14_BRNTAKEN      = 13,
    502   R_PPC64_GOT16               = 14,
    503   R_PPC64_GOT16_LO            = 15,
    504   R_PPC64_GOT16_HI            = 16,
    505   R_PPC64_GOT16_HA            = 17,
    506   R_PPC64_REL32               = 26,
    507   R_PPC64_ADDR64              = 38,
    508   R_PPC64_ADDR16_HIGHER       = 39,
    509   R_PPC64_ADDR16_HIGHERA      = 40,
    510   R_PPC64_ADDR16_HIGHEST      = 41,
    511   R_PPC64_ADDR16_HIGHESTA     = 42,
    512   R_PPC64_REL64               = 44,
    513   R_PPC64_TOC16               = 47,
    514   R_PPC64_TOC16_LO            = 48,
    515   R_PPC64_TOC16_HI            = 49,
    516   R_PPC64_TOC16_HA            = 50,
    517   R_PPC64_TOC                 = 51,
    518   R_PPC64_ADDR16_DS           = 56,
    519   R_PPC64_ADDR16_LO_DS        = 57,
    520   R_PPC64_GOT16_DS            = 58,
    521   R_PPC64_GOT16_LO_DS         = 59,
    522   R_PPC64_TOC16_DS            = 63,
    523   R_PPC64_TOC16_LO_DS         = 64,
    524   R_PPC64_TLS                 = 67,
    525   R_PPC64_DTPMOD64            = 68,
    526   R_PPC64_TPREL16             = 69,
    527   R_PPC64_TPREL16_LO          = 70,
    528   R_PPC64_TPREL16_HI          = 71,
    529   R_PPC64_TPREL16_HA          = 72,
    530   R_PPC64_TPREL64             = 73,
    531   R_PPC64_DTPREL16            = 74,
    532   R_PPC64_DTPREL16_LO         = 75,
    533   R_PPC64_DTPREL16_HI         = 76,
    534   R_PPC64_DTPREL16_HA         = 77,
    535   R_PPC64_DTPREL64            = 78,
    536   R_PPC64_GOT_TLSGD16         = 79,
    537   R_PPC64_GOT_TLSGD16_LO      = 80,
    538   R_PPC64_GOT_TLSGD16_HI      = 81,
    539   R_PPC64_GOT_TLSGD16_HA      = 82,
    540   R_PPC64_GOT_TLSLD16         = 83,
    541   R_PPC64_GOT_TLSLD16_LO      = 84,
    542   R_PPC64_GOT_TLSLD16_HI      = 85,
    543   R_PPC64_GOT_TLSLD16_HA      = 86,
    544   R_PPC64_GOT_TPREL16_DS      = 87,
    545   R_PPC64_GOT_TPREL16_LO_DS   = 88,
    546   R_PPC64_GOT_TPREL16_HI      = 89,
    547   R_PPC64_GOT_TPREL16_HA      = 90,
    548   R_PPC64_GOT_DTPREL16_DS     = 91,
    549   R_PPC64_GOT_DTPREL16_LO_DS  = 92,
    550   R_PPC64_GOT_DTPREL16_HI     = 93,
    551   R_PPC64_GOT_DTPREL16_HA     = 94,
    552   R_PPC64_TPREL16_DS          = 95,
    553   R_PPC64_TPREL16_LO_DS       = 96,
    554   R_PPC64_TPREL16_HIGHER      = 97,
    555   R_PPC64_TPREL16_HIGHERA     = 98,
    556   R_PPC64_TPREL16_HIGHEST     = 99,
    557   R_PPC64_TPREL16_HIGHESTA    = 100,
    558   R_PPC64_DTPREL16_DS         = 101,
    559   R_PPC64_DTPREL16_LO_DS      = 102,
    560   R_PPC64_DTPREL16_HIGHER     = 103,
    561   R_PPC64_DTPREL16_HIGHERA    = 104,
    562   R_PPC64_DTPREL16_HIGHEST    = 105,
    563   R_PPC64_DTPREL16_HIGHESTA   = 106,
    564   R_PPC64_TLSGD               = 107,
    565   R_PPC64_TLSLD               = 108,
    566   R_PPC64_REL16               = 249,
    567   R_PPC64_REL16_LO            = 250,
    568   R_PPC64_REL16_HI            = 251,
    569   R_PPC64_REL16_HA            = 252
    570 };
    571 
    572 // ELF Relocation types for AArch64
    573 
    574 enum {
    575   R_AARCH64_NONE                        = 0x100,
    576 
    577   R_AARCH64_ABS64                       = 0x101,
    578   R_AARCH64_ABS32                       = 0x102,
    579   R_AARCH64_ABS16                       = 0x103,
    580   R_AARCH64_PREL64                      = 0x104,
    581   R_AARCH64_PREL32                      = 0x105,
    582   R_AARCH64_PREL16                      = 0x106,
    583 
    584   R_AARCH64_MOVW_UABS_G0                = 0x107,
    585   R_AARCH64_MOVW_UABS_G0_NC             = 0x108,
    586   R_AARCH64_MOVW_UABS_G1                = 0x109,
    587   R_AARCH64_MOVW_UABS_G1_NC             = 0x10a,
    588   R_AARCH64_MOVW_UABS_G2                = 0x10b,
    589   R_AARCH64_MOVW_UABS_G2_NC             = 0x10c,
    590   R_AARCH64_MOVW_UABS_G3                = 0x10d,
    591   R_AARCH64_MOVW_SABS_G0                = 0x10e,
    592   R_AARCH64_MOVW_SABS_G1                = 0x10f,
    593   R_AARCH64_MOVW_SABS_G2                = 0x110,
    594 
    595   R_AARCH64_LD_PREL_LO19                = 0x111,
    596   R_AARCH64_ADR_PREL_LO21               = 0x112,
    597   R_AARCH64_ADR_PREL_PG_HI21            = 0x113,
    598   R_AARCH64_ADD_ABS_LO12_NC             = 0x115,
    599   R_AARCH64_LDST8_ABS_LO12_NC           = 0x116,
    600 
    601   R_AARCH64_TSTBR14                     = 0x117,
    602   R_AARCH64_CONDBR19                    = 0x118,
    603   R_AARCH64_JUMP26                      = 0x11a,
    604   R_AARCH64_CALL26                      = 0x11b,
    605 
    606   R_AARCH64_LDST16_ABS_LO12_NC          = 0x11c,
    607   R_AARCH64_LDST32_ABS_LO12_NC          = 0x11d,
    608   R_AARCH64_LDST64_ABS_LO12_NC          = 0x11e,
    609 
    610   R_AARCH64_LDST128_ABS_LO12_NC         = 0x12b,
    611 
    612   R_AARCH64_ADR_GOT_PAGE                = 0x137,
    613   R_AARCH64_LD64_GOT_LO12_NC            = 0x138,
    614 
    615   R_AARCH64_TLSLD_MOVW_DTPREL_G2        = 0x20b,
    616   R_AARCH64_TLSLD_MOVW_DTPREL_G1        = 0x20c,
    617   R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC     = 0x20d,
    618   R_AARCH64_TLSLD_MOVW_DTPREL_G0        = 0x20e,
    619   R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC     = 0x20f,
    620   R_AARCH64_TLSLD_ADD_DTPREL_HI12       = 0x210,
    621   R_AARCH64_TLSLD_ADD_DTPREL_LO12       = 0x211,
    622   R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC    = 0x212,
    623   R_AARCH64_TLSLD_LDST8_DTPREL_LO12     = 0x213,
    624   R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC  = 0x214,
    625   R_AARCH64_TLSLD_LDST16_DTPREL_LO12    = 0x215,
    626   R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC = 0x216,
    627   R_AARCH64_TLSLD_LDST32_DTPREL_LO12    = 0x217,
    628   R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC = 0x218,
    629   R_AARCH64_TLSLD_LDST64_DTPREL_LO12    = 0x219,
    630   R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC = 0x21a,
    631 
    632   R_AARCH64_TLSIE_MOVW_GOTTPREL_G1      = 0x21b,
    633   R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC   = 0x21c,
    634   R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21   = 0x21d,
    635   R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC = 0x21e,
    636   R_AARCH64_TLSIE_LD_GOTTPREL_PREL19    = 0x21f,
    637 
    638   R_AARCH64_TLSLE_MOVW_TPREL_G2         = 0x220,
    639   R_AARCH64_TLSLE_MOVW_TPREL_G1         = 0x221,
    640   R_AARCH64_TLSLE_MOVW_TPREL_G1_NC      = 0x222,
    641   R_AARCH64_TLSLE_MOVW_TPREL_G0         = 0x223,
    642   R_AARCH64_TLSLE_MOVW_TPREL_G0_NC      = 0x224,
    643   R_AARCH64_TLSLE_ADD_TPREL_HI12        = 0x225,
    644   R_AARCH64_TLSLE_ADD_TPREL_LO12        = 0x226,
    645   R_AARCH64_TLSLE_ADD_TPREL_LO12_NC     = 0x227,
    646   R_AARCH64_TLSLE_LDST8_TPREL_LO12      = 0x228,
    647   R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC   = 0x229,
    648   R_AARCH64_TLSLE_LDST16_TPREL_LO12     = 0x22a,
    649   R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC  = 0x22b,
    650   R_AARCH64_TLSLE_LDST32_TPREL_LO12     = 0x22c,
    651   R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC  = 0x22d,
    652   R_AARCH64_TLSLE_LDST64_TPREL_LO12     = 0x22e,
    653   R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC  = 0x22f,
    654 
    655   R_AARCH64_TLSDESC_ADR_PAGE            = 0x232,
    656   R_AARCH64_TLSDESC_LD64_LO12_NC        = 0x233,
    657   R_AARCH64_TLSDESC_ADD_LO12_NC         = 0x234,
    658 
    659   R_AARCH64_TLSDESC_CALL                = 0x239
    660 };
    661 
    662 // ARM Specific e_flags
    663 enum : unsigned {
    664   EF_ARM_SOFT_FLOAT =     0x00000200U,
    665   EF_ARM_VFP_FLOAT =      0x00000400U,
    666   EF_ARM_EABI_UNKNOWN =   0x00000000U,
    667   EF_ARM_EABI_VER1 =      0x01000000U,
    668   EF_ARM_EABI_VER2 =      0x02000000U,
    669   EF_ARM_EABI_VER3 =      0x03000000U,
    670   EF_ARM_EABI_VER4 =      0x04000000U,
    671   EF_ARM_EABI_VER5 =      0x05000000U,
    672   EF_ARM_EABIMASK =       0xFF000000U
    673 };
    674 
    675 // ELF Relocation types for ARM
    676 // Meets 2.08 ABI Specs.
    677 
    678 enum {
    679   R_ARM_NONE                  = 0x00,
    680   R_ARM_PC24                  = 0x01,
    681   R_ARM_ABS32                 = 0x02,
    682   R_ARM_REL32                 = 0x03,
    683   R_ARM_LDR_PC_G0             = 0x04,
    684   R_ARM_ABS16                 = 0x05,
    685   R_ARM_ABS12                 = 0x06,
    686   R_ARM_THM_ABS5              = 0x07,
    687   R_ARM_ABS8                  = 0x08,
    688   R_ARM_SBREL32               = 0x09,
    689   R_ARM_THM_CALL              = 0x0a,
    690   R_ARM_THM_PC8               = 0x0b,
    691   R_ARM_BREL_ADJ              = 0x0c,
    692   R_ARM_TLS_DESC              = 0x0d,
    693   R_ARM_THM_SWI8              = 0x0e,
    694   R_ARM_XPC25                 = 0x0f,
    695   R_ARM_THM_XPC22             = 0x10,
    696   R_ARM_TLS_DTPMOD32          = 0x11,
    697   R_ARM_TLS_DTPOFF32          = 0x12,
    698   R_ARM_TLS_TPOFF32           = 0x13,
    699   R_ARM_COPY                  = 0x14,
    700   R_ARM_GLOB_DAT              = 0x15,
    701   R_ARM_JUMP_SLOT             = 0x16,
    702   R_ARM_RELATIVE              = 0x17,
    703   R_ARM_GOTOFF32              = 0x18,
    704   R_ARM_BASE_PREL             = 0x19,
    705   R_ARM_GOT_BREL              = 0x1a,
    706   R_ARM_PLT32                 = 0x1b,
    707   R_ARM_CALL                  = 0x1c,
    708   R_ARM_JUMP24                = 0x1d,
    709   R_ARM_THM_JUMP24            = 0x1e,
    710   R_ARM_BASE_ABS              = 0x1f,
    711   R_ARM_ALU_PCREL_7_0         = 0x20,
    712   R_ARM_ALU_PCREL_15_8        = 0x21,
    713   R_ARM_ALU_PCREL_23_15       = 0x22,
    714   R_ARM_LDR_SBREL_11_0_NC     = 0x23,
    715   R_ARM_ALU_SBREL_19_12_NC    = 0x24,
    716   R_ARM_ALU_SBREL_27_20_CK    = 0x25,
    717   R_ARM_TARGET1               = 0x26,
    718   R_ARM_SBREL31               = 0x27,
    719   R_ARM_V4BX                  = 0x28,
    720   R_ARM_TARGET2               = 0x29,
    721   R_ARM_PREL31                = 0x2a,
    722   R_ARM_MOVW_ABS_NC           = 0x2b,
    723   R_ARM_MOVT_ABS              = 0x2c,
    724   R_ARM_MOVW_PREL_NC          = 0x2d,
    725   R_ARM_MOVT_PREL             = 0x2e,
    726   R_ARM_THM_MOVW_ABS_NC       = 0x2f,
    727   R_ARM_THM_MOVT_ABS          = 0x30,
    728   R_ARM_THM_MOVW_PREL_NC      = 0x31,
    729   R_ARM_THM_MOVT_PREL         = 0x32,
    730   R_ARM_THM_JUMP19            = 0x33,
    731   R_ARM_THM_JUMP6             = 0x34,
    732   R_ARM_THM_ALU_PREL_11_0     = 0x35,
    733   R_ARM_THM_PC12              = 0x36,
    734   R_ARM_ABS32_NOI             = 0x37,
    735   R_ARM_REL32_NOI             = 0x38,
    736   R_ARM_ALU_PC_G0_NC          = 0x39,
    737   R_ARM_ALU_PC_G0             = 0x3a,
    738   R_ARM_ALU_PC_G1_NC          = 0x3b,
    739   R_ARM_ALU_PC_G1             = 0x3c,
    740   R_ARM_ALU_PC_G2             = 0x3d,
    741   R_ARM_LDR_PC_G1             = 0x3e,
    742   R_ARM_LDR_PC_G2             = 0x3f,
    743   R_ARM_LDRS_PC_G0            = 0x40,
    744   R_ARM_LDRS_PC_G1            = 0x41,
    745   R_ARM_LDRS_PC_G2            = 0x42,
    746   R_ARM_LDC_PC_G0             = 0x43,
    747   R_ARM_LDC_PC_G1             = 0x44,
    748   R_ARM_LDC_PC_G2             = 0x45,
    749   R_ARM_ALU_SB_G0_NC          = 0x46,
    750   R_ARM_ALU_SB_G0             = 0x47,
    751   R_ARM_ALU_SB_G1_NC          = 0x48,
    752   R_ARM_ALU_SB_G1             = 0x49,
    753   R_ARM_ALU_SB_G2             = 0x4a,
    754   R_ARM_LDR_SB_G0             = 0x4b,
    755   R_ARM_LDR_SB_G1             = 0x4c,
    756   R_ARM_LDR_SB_G2             = 0x4d,
    757   R_ARM_LDRS_SB_G0            = 0x4e,
    758   R_ARM_LDRS_SB_G1            = 0x4f,
    759   R_ARM_LDRS_SB_G2            = 0x50,
    760   R_ARM_LDC_SB_G0             = 0x51,
    761   R_ARM_LDC_SB_G1             = 0x52,
    762   R_ARM_LDC_SB_G2             = 0x53,
    763   R_ARM_MOVW_BREL_NC          = 0x54,
    764   R_ARM_MOVT_BREL             = 0x55,
    765   R_ARM_MOVW_BREL             = 0x56,
    766   R_ARM_THM_MOVW_BREL_NC      = 0x57,
    767   R_ARM_THM_MOVT_BREL         = 0x58,
    768   R_ARM_THM_MOVW_BREL         = 0x59,
    769   R_ARM_TLS_GOTDESC           = 0x5a,
    770   R_ARM_TLS_CALL              = 0x5b,
    771   R_ARM_TLS_DESCSEQ           = 0x5c,
    772   R_ARM_THM_TLS_CALL          = 0x5d,
    773   R_ARM_PLT32_ABS             = 0x5e,
    774   R_ARM_GOT_ABS               = 0x5f,
    775   R_ARM_GOT_PREL              = 0x60,
    776   R_ARM_GOT_BREL12            = 0x61,
    777   R_ARM_GOTOFF12              = 0x62,
    778   R_ARM_GOTRELAX              = 0x63,
    779   R_ARM_GNU_VTENTRY           = 0x64,
    780   R_ARM_GNU_VTINHERIT         = 0x65,
    781   R_ARM_THM_JUMP11            = 0x66,
    782   R_ARM_THM_JUMP8             = 0x67,
    783   R_ARM_TLS_GD32              = 0x68,
    784   R_ARM_TLS_LDM32             = 0x69,
    785   R_ARM_TLS_LDO32             = 0x6a,
    786   R_ARM_TLS_IE32              = 0x6b,
    787   R_ARM_TLS_LE32              = 0x6c,
    788   R_ARM_TLS_LDO12             = 0x6d,
    789   R_ARM_TLS_LE12              = 0x6e,
    790   R_ARM_TLS_IE12GP            = 0x6f,
    791   R_ARM_PRIVATE_0             = 0x70,
    792   R_ARM_PRIVATE_1             = 0x71,
    793   R_ARM_PRIVATE_2             = 0x72,
    794   R_ARM_PRIVATE_3             = 0x73,
    795   R_ARM_PRIVATE_4             = 0x74,
    796   R_ARM_PRIVATE_5             = 0x75,
    797   R_ARM_PRIVATE_6             = 0x76,
    798   R_ARM_PRIVATE_7             = 0x77,
    799   R_ARM_PRIVATE_8             = 0x78,
    800   R_ARM_PRIVATE_9             = 0x79,
    801   R_ARM_PRIVATE_10            = 0x7a,
    802   R_ARM_PRIVATE_11            = 0x7b,
    803   R_ARM_PRIVATE_12            = 0x7c,
    804   R_ARM_PRIVATE_13            = 0x7d,
    805   R_ARM_PRIVATE_14            = 0x7e,
    806   R_ARM_PRIVATE_15            = 0x7f,
    807   R_ARM_ME_TOO                = 0x80,
    808   R_ARM_THM_TLS_DESCSEQ16     = 0x81,
    809   R_ARM_THM_TLS_DESCSEQ32     = 0x82
    810 };
    811 
    812 // Mips Specific e_flags
    813 enum : unsigned {
    814   EF_MIPS_NOREORDER = 0x00000001, // Don't reorder instructions
    815   EF_MIPS_PIC       = 0x00000002, // Position independent code
    816   EF_MIPS_CPIC      = 0x00000004, // Call object with Position independent code
    817   EF_MIPS_ABI2      = 0x00000020,
    818   EF_MIPS_32BITMODE = 0x00000100,
    819   EF_MIPS_NAN2008   = 0x00000400, // Uses IEE 754-2008 NaN encoding
    820   EF_MIPS_ABI_O32   = 0x00001000, // This file follows the first MIPS 32 bit ABI
    821 
    822   //ARCH_ASE
    823   EF_MIPS_MICROMIPS = 0x02000000, // microMIPS
    824   EF_MIPS_ARCH_ASE_M16 =
    825                       0x04000000, // Has Mips-16 ISA extensions
    826   //ARCH
    827   EF_MIPS_ARCH_1    = 0x00000000, // MIPS1 instruction set
    828   EF_MIPS_ARCH_2    = 0x10000000, // MIPS2 instruction set
    829   EF_MIPS_ARCH_3    = 0x20000000, // MIPS3 instruction set
    830   EF_MIPS_ARCH_4    = 0x30000000, // MIPS4 instruction set
    831   EF_MIPS_ARCH_5    = 0x40000000, // MIPS5 instruction set
    832   EF_MIPS_ARCH_32   = 0x50000000, // MIPS32 instruction set per linux not elf.h
    833   EF_MIPS_ARCH_64   = 0x60000000, // MIPS64 instruction set per linux not elf.h
    834   EF_MIPS_ARCH_32R2 = 0x70000000, // mips32r2
    835   EF_MIPS_ARCH_64R2 = 0x80000000, // mips64r2
    836   EF_MIPS_ARCH_32R6 = 0x90000000, // mips32r6
    837   EF_MIPS_ARCH_64R6 = 0xa0000000, // mips64r6
    838   EF_MIPS_ARCH      = 0xf0000000  // Mask for applying EF_MIPS_ARCH_ variant
    839 };
    840 
    841 // ELF Relocation types for Mips
    842 enum {
    843   R_MIPS_NONE              =  0,
    844   R_MIPS_16                =  1,
    845   R_MIPS_32                =  2,
    846   R_MIPS_REL32             =  3,
    847   R_MIPS_26                =  4,
    848   R_MIPS_HI16              =  5,
    849   R_MIPS_LO16              =  6,
    850   R_MIPS_GPREL16           =  7,
    851   R_MIPS_LITERAL           =  8,
    852   R_MIPS_GOT16             =  9,
    853   R_MIPS_PC16              = 10,
    854   R_MIPS_CALL16            = 11,
    855   R_MIPS_GPREL32           = 12,
    856   R_MIPS_UNUSED1           = 13,
    857   R_MIPS_UNUSED2           = 14,
    858   R_MIPS_SHIFT5            = 16,
    859   R_MIPS_SHIFT6            = 17,
    860   R_MIPS_64                = 18,
    861   R_MIPS_GOT_DISP          = 19,
    862   R_MIPS_GOT_PAGE          = 20,
    863   R_MIPS_GOT_OFST          = 21,
    864   R_MIPS_GOT_HI16          = 22,
    865   R_MIPS_GOT_LO16          = 23,
    866   R_MIPS_SUB               = 24,
    867   R_MIPS_INSERT_A          = 25,
    868   R_MIPS_INSERT_B          = 26,
    869   R_MIPS_DELETE            = 27,
    870   R_MIPS_HIGHER            = 28,
    871   R_MIPS_HIGHEST           = 29,
    872   R_MIPS_CALL_HI16         = 30,
    873   R_MIPS_CALL_LO16         = 31,
    874   R_MIPS_SCN_DISP          = 32,
    875   R_MIPS_REL16             = 33,
    876   R_MIPS_ADD_IMMEDIATE     = 34,
    877   R_MIPS_PJUMP             = 35,
    878   R_MIPS_RELGOT            = 36,
    879   R_MIPS_JALR              = 37,
    880   R_MIPS_TLS_DTPMOD32      = 38,
    881   R_MIPS_TLS_DTPREL32      = 39,
    882   R_MIPS_TLS_DTPMOD64      = 40,
    883   R_MIPS_TLS_DTPREL64      = 41,
    884   R_MIPS_TLS_GD            = 42,
    885   R_MIPS_TLS_LDM           = 43,
    886   R_MIPS_TLS_DTPREL_HI16   = 44,
    887   R_MIPS_TLS_DTPREL_LO16   = 45,
    888   R_MIPS_TLS_GOTTPREL      = 46,
    889   R_MIPS_TLS_TPREL32       = 47,
    890   R_MIPS_TLS_TPREL64       = 48,
    891   R_MIPS_TLS_TPREL_HI16    = 49,
    892   R_MIPS_TLS_TPREL_LO16    = 50,
    893   R_MIPS_GLOB_DAT          = 51,
    894   R_MIPS_PC21_S2           = 60,
    895   R_MIPS_PC26_S2           = 61,
    896   R_MIPS_PC18_S3           = 62,
    897   R_MIPS_PC19_S2           = 63,
    898   R_MIPS_PCHI16            = 64,
    899   R_MIPS_PCLO16            = 65,
    900   R_MIPS16_GOT16           = 102,
    901   R_MIPS16_HI16            = 104,
    902   R_MIPS16_LO16            = 105,
    903   R_MIPS_COPY              = 126,
    904   R_MIPS_JUMP_SLOT         = 127,
    905   R_MICROMIPS_26_S1        = 133,
    906   R_MICROMIPS_HI16         = 134,
    907   R_MICROMIPS_LO16         = 135,
    908   R_MICROMIPS_GOT16        = 138,
    909   R_MICROMIPS_PC16_S1      = 141,
    910   R_MICROMIPS_CALL16       = 142,
    911   R_MICROMIPS_GOT_DISP     = 145,
    912   R_MICROMIPS_GOT_PAGE     = 146,
    913   R_MICROMIPS_GOT_OFST     = 147,
    914   R_MICROMIPS_TLS_GD          = 162,
    915   R_MICROMIPS_TLS_LDM         = 163,
    916   R_MICROMIPS_TLS_DTPREL_HI16 = 164,
    917   R_MICROMIPS_TLS_DTPREL_LO16 = 165,
    918   R_MICROMIPS_TLS_TPREL_HI16  = 169,
    919   R_MICROMIPS_TLS_TPREL_LO16  = 170,
    920   R_MIPS_NUM               = 218,
    921   R_MIPS_PC32              = 248
    922 };
    923 
    924 // Special values for the st_other field in the symbol table entry for MIPS.
    925 enum {
    926   STO_MIPS_OPTIONAL        = 0x04,  // Symbol whose definition is optional
    927   STO_MIPS_PLT             = 0x08,  // PLT entry related dynamic table record
    928   STO_MIPS_PIC             = 0x20,  // PIC func in an object mixes PIC/non-PIC
    929   STO_MIPS_MICROMIPS       = 0x80,  // MIPS Specific ISA for MicroMips
    930   STO_MIPS_MIPS16          = 0xf0   // MIPS Specific ISA for Mips16
    931 };
    932 
    933 // Hexagon Specific e_flags
    934 // Release 5 ABI
    935 enum {
    936   // Object processor version flags, bits[3:0]
    937   EF_HEXAGON_MACH_V2      = 0x00000001,   // Hexagon V2
    938   EF_HEXAGON_MACH_V3      = 0x00000002,   // Hexagon V3
    939   EF_HEXAGON_MACH_V4      = 0x00000003,   // Hexagon V4
    940   EF_HEXAGON_MACH_V5      = 0x00000004,   // Hexagon V5
    941 
    942   // Highest ISA version flags
    943   EF_HEXAGON_ISA_MACH     = 0x00000000,   // Same as specified in bits[3:0]
    944                                           // of e_flags
    945   EF_HEXAGON_ISA_V2       = 0x00000010,   // Hexagon V2 ISA
    946   EF_HEXAGON_ISA_V3       = 0x00000020,   // Hexagon V3 ISA
    947   EF_HEXAGON_ISA_V4       = 0x00000030,   // Hexagon V4 ISA
    948   EF_HEXAGON_ISA_V5       = 0x00000040    // Hexagon V5 ISA
    949 };
    950 
    951 // Hexagon specific Section indexes for common small data
    952 // Release 5 ABI
    953 enum {
    954   SHN_HEXAGON_SCOMMON     = 0xff00,       // Other access sizes
    955   SHN_HEXAGON_SCOMMON_1   = 0xff01,       // Byte-sized access
    956   SHN_HEXAGON_SCOMMON_2   = 0xff02,       // Half-word-sized access
    957   SHN_HEXAGON_SCOMMON_4   = 0xff03,       // Word-sized access
    958   SHN_HEXAGON_SCOMMON_8   = 0xff04        // Double-word-size access
    959 };
    960 
    961 // ELF Relocation types for Hexagon
    962 // Release 5 ABI
    963 enum {
    964   R_HEX_NONE              =  0,
    965   R_HEX_B22_PCREL         =  1,
    966   R_HEX_B15_PCREL         =  2,
    967   R_HEX_B7_PCREL          =  3,
    968   R_HEX_LO16              =  4,
    969   R_HEX_HI16              =  5,
    970   R_HEX_32                =  6,
    971   R_HEX_16                =  7,
    972   R_HEX_8                 =  8,
    973   R_HEX_GPREL16_0         =  9,
    974   R_HEX_GPREL16_1         =  10,
    975   R_HEX_GPREL16_2         =  11,
    976   R_HEX_GPREL16_3         =  12,
    977   R_HEX_HL16              =  13,
    978   R_HEX_B13_PCREL         =  14,
    979   R_HEX_B9_PCREL          =  15,
    980   R_HEX_B32_PCREL_X       =  16,
    981   R_HEX_32_6_X            =  17,
    982   R_HEX_B22_PCREL_X       =  18,
    983   R_HEX_B15_PCREL_X       =  19,
    984   R_HEX_B13_PCREL_X       =  20,
    985   R_HEX_B9_PCREL_X        =  21,
    986   R_HEX_B7_PCREL_X        =  22,
    987   R_HEX_16_X              =  23,
    988   R_HEX_12_X              =  24,
    989   R_HEX_11_X              =  25,
    990   R_HEX_10_X              =  26,
    991   R_HEX_9_X               =  27,
    992   R_HEX_8_X               =  28,
    993   R_HEX_7_X               =  29,
    994   R_HEX_6_X               =  30,
    995   R_HEX_32_PCREL          =  31,
    996   R_HEX_COPY              =  32,
    997   R_HEX_GLOB_DAT          =  33,
    998   R_HEX_JMP_SLOT          =  34,
    999   R_HEX_RELATIVE          =  35,
   1000   R_HEX_PLT_B22_PCREL     =  36,
   1001   R_HEX_GOTREL_LO16       =  37,
   1002   R_HEX_GOTREL_HI16       =  38,
   1003   R_HEX_GOTREL_32         =  39,
   1004   R_HEX_GOT_LO16          =  40,
   1005   R_HEX_GOT_HI16          =  41,
   1006   R_HEX_GOT_32            =  42,
   1007   R_HEX_GOT_16            =  43,
   1008   R_HEX_DTPMOD_32         =  44,
   1009   R_HEX_DTPREL_LO16       =  45,
   1010   R_HEX_DTPREL_HI16       =  46,
   1011   R_HEX_DTPREL_32         =  47,
   1012   R_HEX_DTPREL_16         =  48,
   1013   R_HEX_GD_PLT_B22_PCREL  =  49,
   1014   R_HEX_GD_GOT_LO16       =  50,
   1015   R_HEX_GD_GOT_HI16       =  51,
   1016   R_HEX_GD_GOT_32         =  52,
   1017   R_HEX_GD_GOT_16         =  53,
   1018   R_HEX_IE_LO16           =  54,
   1019   R_HEX_IE_HI16           =  55,
   1020   R_HEX_IE_32             =  56,
   1021   R_HEX_IE_GOT_LO16       =  57,
   1022   R_HEX_IE_GOT_HI16       =  58,
   1023   R_HEX_IE_GOT_32         =  59,
   1024   R_HEX_IE_GOT_16         =  60,
   1025   R_HEX_TPREL_LO16        =  61,
   1026   R_HEX_TPREL_HI16        =  62,
   1027   R_HEX_TPREL_32          =  63,
   1028   R_HEX_TPREL_16          =  64,
   1029   R_HEX_6_PCREL_X         =  65,
   1030   R_HEX_GOTREL_32_6_X     =  66,
   1031   R_HEX_GOTREL_16_X       =  67,
   1032   R_HEX_GOTREL_11_X       =  68,
   1033   R_HEX_GOT_32_6_X        =  69,
   1034   R_HEX_GOT_16_X          =  70,
   1035   R_HEX_GOT_11_X          =  71,
   1036   R_HEX_DTPREL_32_6_X     =  72,
   1037   R_HEX_DTPREL_16_X       =  73,
   1038   R_HEX_DTPREL_11_X       =  74,
   1039   R_HEX_GD_GOT_32_6_X     =  75,
   1040   R_HEX_GD_GOT_16_X       =  76,
   1041   R_HEX_GD_GOT_11_X       =  77,
   1042   R_HEX_IE_32_6_X         =  78,
   1043   R_HEX_IE_16_X           =  79,
   1044   R_HEX_IE_GOT_32_6_X     =  80,
   1045   R_HEX_IE_GOT_16_X       =  81,
   1046   R_HEX_IE_GOT_11_X       =  82,
   1047   R_HEX_TPREL_32_6_X      =  83,
   1048   R_HEX_TPREL_16_X        =  84,
   1049   R_HEX_TPREL_11_X        =  85
   1050 };
   1051 
   1052 // ELF Relocation types for S390/zSeries
   1053 enum {
   1054   R_390_NONE        =  0,
   1055   R_390_8           =  1,
   1056   R_390_12          =  2,
   1057   R_390_16          =  3,
   1058   R_390_32          =  4,
   1059   R_390_PC32        =  5,
   1060   R_390_GOT12       =  6,
   1061   R_390_GOT32       =  7,
   1062   R_390_PLT32       =  8,
   1063   R_390_COPY        =  9,
   1064   R_390_GLOB_DAT    = 10,
   1065   R_390_JMP_SLOT    = 11,
   1066   R_390_RELATIVE    = 12,
   1067   R_390_GOTOFF      = 13,
   1068   R_390_GOTPC       = 14,
   1069   R_390_GOT16       = 15,
   1070   R_390_PC16        = 16,
   1071   R_390_PC16DBL     = 17,
   1072   R_390_PLT16DBL    = 18,
   1073   R_390_PC32DBL     = 19,
   1074   R_390_PLT32DBL    = 20,
   1075   R_390_GOTPCDBL    = 21,
   1076   R_390_64          = 22,
   1077   R_390_PC64        = 23,
   1078   R_390_GOT64       = 24,
   1079   R_390_PLT64       = 25,
   1080   R_390_GOTENT      = 26,
   1081   R_390_GOTOFF16    = 27,
   1082   R_390_GOTOFF64    = 28,
   1083   R_390_GOTPLT12    = 29,
   1084   R_390_GOTPLT16    = 30,
   1085   R_390_GOTPLT32    = 31,
   1086   R_390_GOTPLT64    = 32,
   1087   R_390_GOTPLTENT   = 33,
   1088   R_390_PLTOFF16    = 34,
   1089   R_390_PLTOFF32    = 35,
   1090   R_390_PLTOFF64    = 36,
   1091   R_390_TLS_LOAD    = 37,
   1092   R_390_TLS_GDCALL  = 38,
   1093   R_390_TLS_LDCALL  = 39,
   1094   R_390_TLS_GD32    = 40,
   1095   R_390_TLS_GD64    = 41,
   1096   R_390_TLS_GOTIE12 = 42,
   1097   R_390_TLS_GOTIE32 = 43,
   1098   R_390_TLS_GOTIE64 = 44,
   1099   R_390_TLS_LDM32   = 45,
   1100   R_390_TLS_LDM64   = 46,
   1101   R_390_TLS_IE32    = 47,
   1102   R_390_TLS_IE64    = 48,
   1103   R_390_TLS_IEENT   = 49,
   1104   R_390_TLS_LE32    = 50,
   1105   R_390_TLS_LE64    = 51,
   1106   R_390_TLS_LDO32   = 52,
   1107   R_390_TLS_LDO64   = 53,
   1108   R_390_TLS_DTPMOD  = 54,
   1109   R_390_TLS_DTPOFF  = 55,
   1110   R_390_TLS_TPOFF   = 56,
   1111   R_390_20          = 57,
   1112   R_390_GOT20       = 58,
   1113   R_390_GOTPLT20    = 59,
   1114   R_390_TLS_GOTIE20 = 60,
   1115   R_390_IRELATIVE   = 61
   1116 };
   1117 
   1118 // ELF Relocation type for Sparc.
   1119 enum {
   1120   R_SPARC_NONE        = 0,
   1121   R_SPARC_8           = 1,
   1122   R_SPARC_16          = 2,
   1123   R_SPARC_32          = 3,
   1124   R_SPARC_DISP8       = 4,
   1125   R_SPARC_DISP16      = 5,
   1126   R_SPARC_DISP32      = 6,
   1127   R_SPARC_WDISP30     = 7,
   1128   R_SPARC_WDISP22     = 8,
   1129   R_SPARC_HI22        = 9,
   1130   R_SPARC_22          = 10,
   1131   R_SPARC_13          = 11,
   1132   R_SPARC_LO10        = 12,
   1133   R_SPARC_GOT10       = 13,
   1134   R_SPARC_GOT13       = 14,
   1135   R_SPARC_GOT22       = 15,
   1136   R_SPARC_PC10        = 16,
   1137   R_SPARC_PC22        = 17,
   1138   R_SPARC_WPLT30      = 18,
   1139   R_SPARC_COPY        = 19,
   1140   R_SPARC_GLOB_DAT    = 20,
   1141   R_SPARC_JMP_SLOT    = 21,
   1142   R_SPARC_RELATIVE    = 22,
   1143   R_SPARC_UA32        = 23,
   1144   R_SPARC_PLT32       = 24,
   1145   R_SPARC_HIPLT22     = 25,
   1146   R_SPARC_LOPLT10     = 26,
   1147   R_SPARC_PCPLT32     = 27,
   1148   R_SPARC_PCPLT22     = 28,
   1149   R_SPARC_PCPLT10     = 29,
   1150   R_SPARC_10          = 30,
   1151   R_SPARC_11          = 31,
   1152   R_SPARC_64          = 32,
   1153   R_SPARC_OLO10       = 33,
   1154   R_SPARC_HH22        = 34,
   1155   R_SPARC_HM10        = 35,
   1156   R_SPARC_LM22        = 36,
   1157   R_SPARC_PC_HH22     = 37,
   1158   R_SPARC_PC_HM10     = 38,
   1159   R_SPARC_PC_LM22     = 39,
   1160   R_SPARC_WDISP16     = 40,
   1161   R_SPARC_WDISP19     = 41,
   1162   R_SPARC_7           = 43,
   1163   R_SPARC_5           = 44,
   1164   R_SPARC_6           = 45,
   1165   R_SPARC_DISP64      = 46,
   1166   R_SPARC_PLT64       = 47,
   1167   R_SPARC_HIX22       = 48,
   1168   R_SPARC_LOX10       = 49,
   1169   R_SPARC_H44         = 50,
   1170   R_SPARC_M44         = 51,
   1171   R_SPARC_L44         = 52,
   1172   R_SPARC_REGISTER    = 53,
   1173   R_SPARC_UA64        = 54,
   1174   R_SPARC_UA16        = 55,
   1175   R_SPARC_TLS_GD_HI22   = 56,
   1176   R_SPARC_TLS_GD_LO10   = 57,
   1177   R_SPARC_TLS_GD_ADD    = 58,
   1178   R_SPARC_TLS_GD_CALL   = 59,
   1179   R_SPARC_TLS_LDM_HI22  = 60,
   1180   R_SPARC_TLS_LDM_LO10  = 61,
   1181   R_SPARC_TLS_LDM_ADD   = 62,
   1182   R_SPARC_TLS_LDM_CALL  = 63,
   1183   R_SPARC_TLS_LDO_HIX22 = 64,
   1184   R_SPARC_TLS_LDO_LOX10 = 65,
   1185   R_SPARC_TLS_LDO_ADD   = 66,
   1186   R_SPARC_TLS_IE_HI22   = 67,
   1187   R_SPARC_TLS_IE_LO10   = 68,
   1188   R_SPARC_TLS_IE_LD     = 69,
   1189   R_SPARC_TLS_IE_LDX    = 70,
   1190   R_SPARC_TLS_IE_ADD    = 71,
   1191   R_SPARC_TLS_LE_HIX22  = 72,
   1192   R_SPARC_TLS_LE_LOX10  = 73,
   1193   R_SPARC_TLS_DTPMOD32  = 74,
   1194   R_SPARC_TLS_DTPMOD64  = 75,
   1195   R_SPARC_TLS_DTPOFF32  = 76,
   1196   R_SPARC_TLS_DTPOFF64  = 77,
   1197   R_SPARC_TLS_TPOFF32   = 78,
   1198   R_SPARC_TLS_TPOFF64   = 79,
   1199   R_SPARC_GOTDATA_HIX22 = 80,
   1200   R_SPARC_GOTDATA_LOX22 = 81,
   1201   R_SPARC_GOTDATA_OP_HIX22 = 82,
   1202   R_SPARC_GOTDATA_OP_LOX22 = 83,
   1203   R_SPARC_GOTDATA_OP    = 84
   1204 };
   1205 
   1206 // Section header.
   1207 struct Elf32_Shdr {
   1208   Elf32_Word sh_name;      // Section name (index into string table)
   1209   Elf32_Word sh_type;      // Section type (SHT_*)
   1210   Elf32_Word sh_flags;     // Section flags (SHF_*)
   1211   Elf32_Addr sh_addr;      // Address where section is to be loaded
   1212   Elf32_Off  sh_offset;    // File offset of section data, in bytes
   1213   Elf32_Word sh_size;      // Size of section, in bytes
   1214   Elf32_Word sh_link;      // Section type-specific header table index link
   1215   Elf32_Word sh_info;      // Section type-specific extra information
   1216   Elf32_Word sh_addralign; // Section address alignment
   1217   Elf32_Word sh_entsize;   // Size of records contained within the section
   1218 };
   1219 
   1220 // Section header for ELF64 - same fields as ELF32, different types.
   1221 struct Elf64_Shdr {
   1222   Elf64_Word  sh_name;
   1223   Elf64_Word  sh_type;
   1224   Elf64_Xword sh_flags;
   1225   Elf64_Addr  sh_addr;
   1226   Elf64_Off   sh_offset;
   1227   Elf64_Xword sh_size;
   1228   Elf64_Word  sh_link;
   1229   Elf64_Word  sh_info;
   1230   Elf64_Xword sh_addralign;
   1231   Elf64_Xword sh_entsize;
   1232 };
   1233 
   1234 // Special section indices.
   1235 enum {
   1236   SHN_UNDEF     = 0,      // Undefined, missing, irrelevant, or meaningless
   1237   SHN_LORESERVE = 0xff00, // Lowest reserved index
   1238   SHN_LOPROC    = 0xff00, // Lowest processor-specific index
   1239   SHN_HIPROC    = 0xff1f, // Highest processor-specific index
   1240   SHN_LOOS      = 0xff20, // Lowest operating system-specific index
   1241   SHN_HIOS      = 0xff3f, // Highest operating system-specific index
   1242   SHN_ABS       = 0xfff1, // Symbol has absolute value; does not need relocation
   1243   SHN_COMMON    = 0xfff2, // FORTRAN COMMON or C external global variables
   1244   SHN_XINDEX    = 0xffff, // Mark that the index is >= SHN_LORESERVE
   1245   SHN_HIRESERVE = 0xffff  // Highest reserved index
   1246 };
   1247 
   1248 // Section types.
   1249 enum : unsigned {
   1250   SHT_NULL          = 0,  // No associated section (inactive entry).
   1251   SHT_PROGBITS      = 1,  // Program-defined contents.
   1252   SHT_SYMTAB        = 2,  // Symbol table.
   1253   SHT_STRTAB        = 3,  // String table.
   1254   SHT_RELA          = 4,  // Relocation entries; explicit addends.
   1255   SHT_HASH          = 5,  // Symbol hash table.
   1256   SHT_DYNAMIC       = 6,  // Information for dynamic linking.
   1257   SHT_NOTE          = 7,  // Information about the file.
   1258   SHT_NOBITS        = 8,  // Data occupies no space in the file.
   1259   SHT_REL           = 9,  // Relocation entries; no explicit addends.
   1260   SHT_SHLIB         = 10, // Reserved.
   1261   SHT_DYNSYM        = 11, // Symbol table.
   1262   SHT_INIT_ARRAY    = 14, // Pointers to initialization functions.
   1263   SHT_FINI_ARRAY    = 15, // Pointers to termination functions.
   1264   SHT_PREINIT_ARRAY = 16, // Pointers to pre-init functions.
   1265   SHT_GROUP         = 17, // Section group.
   1266   SHT_SYMTAB_SHNDX  = 18, // Indices for SHN_XINDEX entries.
   1267   SHT_LOOS          = 0x60000000, // Lowest operating system-specific type.
   1268   SHT_GNU_ATTRIBUTES= 0x6ffffff5, // Object attributes.
   1269   SHT_GNU_HASH      = 0x6ffffff6, // GNU-style hash table.
   1270   SHT_GNU_verdef    = 0x6ffffffd, // GNU version definitions.
   1271   SHT_GNU_verneed   = 0x6ffffffe, // GNU version references.
   1272   SHT_GNU_versym    = 0x6fffffff, // GNU symbol versions table.
   1273   SHT_HIOS          = 0x6fffffff, // Highest operating system-specific type.
   1274   SHT_LOPROC        = 0x70000000, // Lowest processor arch-specific type.
   1275   // Fixme: All this is duplicated in MCSectionELF. Why??
   1276   // Exception Index table
   1277   SHT_ARM_EXIDX           = 0x70000001U,
   1278   // BPABI DLL dynamic linking pre-emption map
   1279   SHT_ARM_PREEMPTMAP      = 0x70000002U,
   1280   //  Object file compatibility attributes
   1281   SHT_ARM_ATTRIBUTES      = 0x70000003U,
   1282   SHT_ARM_DEBUGOVERLAY    = 0x70000004U,
   1283   SHT_ARM_OVERLAYSECTION  = 0x70000005U,
   1284   SHT_HEX_ORDERED         = 0x70000000, // Link editor is to sort the entries in
   1285                                         // this section based on their sizes
   1286   SHT_X86_64_UNWIND       = 0x70000001, // Unwind information
   1287 
   1288   SHT_MIPS_REGINFO        = 0x70000006, // Register usage information
   1289   SHT_MIPS_OPTIONS        = 0x7000000d, // General options
   1290   SHT_MIPS_ABIFLAGS       = 0x7000002a, // Abiflags options
   1291 
   1292   SHT_HIPROC        = 0x7fffffff, // Highest processor arch-specific type.
   1293   SHT_LOUSER        = 0x80000000, // Lowest type reserved for applications.
   1294   SHT_HIUSER        = 0xffffffff  // Highest type reserved for applications.
   1295 };
   1296 
   1297 // Section flags.
   1298 enum : unsigned {
   1299   // Section data should be writable during execution.
   1300   SHF_WRITE = 0x1,
   1301 
   1302   // Section occupies memory during program execution.
   1303   SHF_ALLOC = 0x2,
   1304 
   1305   // Section contains executable machine instructions.
   1306   SHF_EXECINSTR = 0x4,
   1307 
   1308   // The data in this section may be merged.
   1309   SHF_MERGE = 0x10,
   1310 
   1311   // The data in this section is null-terminated strings.
   1312   SHF_STRINGS = 0x20,
   1313 
   1314   // A field in this section holds a section header table index.
   1315   SHF_INFO_LINK = 0x40U,
   1316 
   1317   // Adds special ordering requirements for link editors.
   1318   SHF_LINK_ORDER = 0x80U,
   1319 
   1320   // This section requires special OS-specific processing to avoid incorrect
   1321   // behavior.
   1322   SHF_OS_NONCONFORMING = 0x100U,
   1323 
   1324   // This section is a member of a section group.
   1325   SHF_GROUP = 0x200U,
   1326 
   1327   // This section holds Thread-Local Storage.
   1328   SHF_TLS = 0x400U,
   1329 
   1330   // This section is excluded from the final executable or shared library.
   1331   SHF_EXCLUDE = 0x80000000U,
   1332 
   1333   // Start of target-specific flags.
   1334 
   1335   /// XCORE_SHF_CP_SECTION - All sections with the "c" flag are grouped
   1336   /// together by the linker to form the constant pool and the cp register is
   1337   /// set to the start of the constant pool by the boot code.
   1338   XCORE_SHF_CP_SECTION = 0x800U,
   1339 
   1340   /// XCORE_SHF_DP_SECTION - All sections with the "d" flag are grouped
   1341   /// together by the linker to form the data section and the dp register is
   1342   /// set to the start of the section by the boot code.
   1343   XCORE_SHF_DP_SECTION = 0x1000U,
   1344 
   1345   SHF_MASKOS   = 0x0ff00000,
   1346 
   1347   // Bits indicating processor-specific flags.
   1348   SHF_MASKPROC = 0xf0000000,
   1349 
   1350   // If an object file section does not have this flag set, then it may not hold
   1351   // more than 2GB and can be freely referred to in objects using smaller code
   1352   // models. Otherwise, only objects using larger code models can refer to them.
   1353   // For example, a medium code model object can refer to data in a section that
   1354   // sets this flag besides being able to refer to data in a section that does
   1355   // not set it; likewise, a small code model object can refer only to code in a
   1356   // section that does not set this flag.
   1357   SHF_X86_64_LARGE = 0x10000000,
   1358 
   1359   // All sections with the GPREL flag are grouped into a global data area
   1360   // for faster accesses
   1361   SHF_HEX_GPREL = 0x10000000,
   1362 
   1363   // Section contains text/data which may be replicated in other sections.
   1364   // Linker must retain only one copy.
   1365   SHF_MIPS_NODUPES = 0x01000000,
   1366 
   1367   // Linker must generate implicit hidden weak names.
   1368   SHF_MIPS_NAMES   = 0x02000000,
   1369 
   1370   // Section data local to process.
   1371   SHF_MIPS_LOCAL   = 0x04000000,
   1372 
   1373   // Do not strip this section.
   1374   SHF_MIPS_NOSTRIP = 0x08000000,
   1375 
   1376   // Section must be part of global data area.
   1377   SHF_MIPS_GPREL   = 0x10000000,
   1378 
   1379   // This section should be merged.
   1380   SHF_MIPS_MERGE   = 0x20000000,
   1381 
   1382   // Address size to be inferred from section entry size.
   1383   SHF_MIPS_ADDR    = 0x40000000,
   1384 
   1385   // Section data is string data by default.
   1386   SHF_MIPS_STRING  = 0x80000000
   1387 };
   1388 
   1389 // Section Group Flags
   1390 enum : unsigned {
   1391   GRP_COMDAT = 0x1,
   1392   GRP_MASKOS = 0x0ff00000,
   1393   GRP_MASKPROC = 0xf0000000
   1394 };
   1395 
   1396 // Symbol table entries for ELF32.
   1397 struct Elf32_Sym {
   1398   Elf32_Word    st_name;  // Symbol name (index into string table)
   1399   Elf32_Addr    st_value; // Value or address associated with the symbol
   1400   Elf32_Word    st_size;  // Size of the symbol
   1401   unsigned char st_info;  // Symbol's type and binding attributes
   1402   unsigned char st_other; // Must be zero; reserved
   1403   Elf32_Half    st_shndx; // Which section (header table index) it's defined in
   1404 
   1405   // These accessors and mutators correspond to the ELF32_ST_BIND,
   1406   // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
   1407   unsigned char getBinding() const { return st_info >> 4; }
   1408   unsigned char getType() const { return st_info & 0x0f; }
   1409   void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
   1410   void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
   1411   void setBindingAndType(unsigned char b, unsigned char t) {
   1412     st_info = (b << 4) + (t & 0x0f);
   1413   }
   1414 };
   1415 
   1416 // BEGIN android-added for <elf.h> compat
   1417 static inline unsigned char ELF32_ST_BIND(unsigned char st_info) { return st_info >> 4; }
   1418 static inline unsigned char ELF32_ST_TYPE(unsigned char st_info) { return st_info & 0x0f; }
   1419 static inline unsigned char ELF64_ST_BIND(unsigned char st_info) { return st_info >> 4; }
   1420 static inline unsigned char ELF64_ST_TYPE(unsigned char st_info) { return st_info & 0x0f; }
   1421 // END android-added for <elf.h> compat
   1422 
   1423 // Symbol table entries for ELF64.
   1424 struct Elf64_Sym {
   1425   Elf64_Word      st_name;  // Symbol name (index into string table)
   1426   unsigned char   st_info;  // Symbol's type and binding attributes
   1427   unsigned char   st_other; // Must be zero; reserved
   1428   Elf64_Half      st_shndx; // Which section (header tbl index) it's defined in
   1429   Elf64_Addr      st_value; // Value or address associated with the symbol
   1430   Elf64_Xword     st_size;  // Size of the symbol
   1431 
   1432   // These accessors and mutators are identical to those defined for ELF32
   1433   // symbol table entries.
   1434   unsigned char getBinding() const { return st_info >> 4; }
   1435   unsigned char getType() const { return st_info & 0x0f; }
   1436   void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
   1437   void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
   1438   void setBindingAndType(unsigned char b, unsigned char t) {
   1439     st_info = (b << 4) + (t & 0x0f);
   1440   }
   1441 };
   1442 
   1443 // The size (in bytes) of symbol table entries.
   1444 enum {
   1445   SYMENTRY_SIZE32 = 16, // 32-bit symbol entry size
   1446   SYMENTRY_SIZE64 = 24  // 64-bit symbol entry size.
   1447 };
   1448 
   1449 // Symbol bindings.
   1450 enum {
   1451   STB_LOCAL = 0,   // Local symbol, not visible outside obj file containing def
   1452   STB_GLOBAL = 1,  // Global symbol, visible to all object files being combined
   1453   STB_WEAK = 2,    // Weak symbol, like global but lower-precedence
   1454   STB_LOOS   = 10, // Lowest operating system-specific binding type
   1455   STB_HIOS   = 12, // Highest operating system-specific binding type
   1456   STB_LOPROC = 13, // Lowest processor-specific binding type
   1457   STB_HIPROC = 15  // Highest processor-specific binding type
   1458 };
   1459 
   1460 // Symbol types.
   1461 enum {
   1462   STT_NOTYPE  = 0,   // Symbol's type is not specified
   1463   STT_OBJECT  = 1,   // Symbol is a data object (variable, array, etc.)
   1464   STT_FUNC    = 2,   // Symbol is executable code (function, etc.)
   1465   STT_SECTION = 3,   // Symbol refers to a section
   1466   STT_FILE    = 4,   // Local, absolute symbol that refers to a file
   1467   STT_COMMON  = 5,   // An uninitialized common block
   1468   STT_TLS     = 6,   // Thread local data object
   1469   STT_LOOS    = 7,   // Lowest operating system-specific symbol type
   1470   STT_HIOS    = 8,   // Highest operating system-specific symbol type
   1471   STT_GNU_IFUNC = 10, // GNU indirect function
   1472   STT_LOPROC  = 13,  // Lowest processor-specific symbol type
   1473   STT_HIPROC  = 15   // Highest processor-specific symbol type
   1474 };
   1475 
   1476 enum {
   1477   STV_DEFAULT   = 0,  // Visibility is specified by binding type
   1478   STV_INTERNAL  = 1,  // Defined by processor supplements
   1479   STV_HIDDEN    = 2,  // Not visible to other components
   1480   STV_PROTECTED = 3   // Visible in other components but not preemptable
   1481 };
   1482 
   1483 // Symbol number.
   1484 enum {
   1485   STN_UNDEF = 0
   1486 };
   1487 
   1488 // Relocation entry, without explicit addend.
   1489 struct Elf32_Rel {
   1490   Elf32_Addr r_offset; // Location (file byte offset, or program virtual addr)
   1491   Elf32_Word r_info;   // Symbol table index and type of relocation to apply
   1492 
   1493   // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
   1494   // and ELF32_R_INFO macros defined in the ELF specification:
   1495   Elf32_Word getSymbol() const { return (r_info >> 8); }
   1496   unsigned char getType() const { return (unsigned char) (r_info & 0x0ff); }
   1497   void setSymbol(Elf32_Word s) { setSymbolAndType(s, getType()); }
   1498   void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
   1499   void setSymbolAndType(Elf32_Word s, unsigned char t) {
   1500     r_info = (s << 8) + t;
   1501   }
   1502 };
   1503 
   1504 // Relocation entry with explicit addend.
   1505 struct Elf32_Rela {
   1506   Elf32_Addr  r_offset; // Location (file byte offset, or program virtual addr)
   1507   Elf32_Word  r_info;   // Symbol table index and type of relocation to apply
   1508   Elf32_Sword r_addend; // Compute value for relocatable field by adding this
   1509 
   1510   // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
   1511   // and ELF32_R_INFO macros defined in the ELF specification:
   1512   Elf32_Word getSymbol() const { return (r_info >> 8); }
   1513   unsigned char getType() const { return (unsigned char) (r_info & 0x0ff); }
   1514   void setSymbol(Elf32_Word s) { setSymbolAndType(s, getType()); }
   1515   void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
   1516   void setSymbolAndType(Elf32_Word s, unsigned char t) {
   1517     r_info = (s << 8) + t;
   1518   }
   1519 };
   1520 
   1521 // Relocation entry, without explicit addend.
   1522 struct Elf64_Rel {
   1523   Elf64_Addr r_offset; // Location (file byte offset, or program virtual addr).
   1524   Elf64_Xword r_info;   // Symbol table index and type of relocation to apply.
   1525 
   1526   // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
   1527   // and ELF64_R_INFO macros defined in the ELF specification:
   1528   Elf64_Word getSymbol() const { return (r_info >> 32); }
   1529   Elf64_Word getType() const {
   1530     return (Elf64_Word) (r_info & 0xffffffffL);
   1531   }
   1532   void setSymbol(Elf64_Word s) { setSymbolAndType(s, getType()); }
   1533   void setType(Elf64_Word t) { setSymbolAndType(getSymbol(), t); }
   1534   void setSymbolAndType(Elf64_Word s, Elf64_Word t) {
   1535     r_info = ((Elf64_Xword)s << 32) + (t&0xffffffffL);
   1536   }
   1537 };
   1538 
   1539 // Relocation entry with explicit addend.
   1540 struct Elf64_Rela {
   1541   Elf64_Addr  r_offset; // Location (file byte offset, or program virtual addr).
   1542   Elf64_Xword  r_info;   // Symbol table index and type of relocation to apply.
   1543   Elf64_Sxword r_addend; // Compute value for relocatable field by adding this.
   1544 
   1545   // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
   1546   // and ELF64_R_INFO macros defined in the ELF specification:
   1547   Elf64_Word getSymbol() const { return (r_info >> 32); }
   1548   Elf64_Word getType() const {
   1549     return (Elf64_Word) (r_info & 0xffffffffL);
   1550   }
   1551   void setSymbol(Elf64_Word s) { setSymbolAndType(s, getType()); }
   1552   void setType(Elf64_Word t) { setSymbolAndType(getSymbol(), t); }
   1553   void setSymbolAndType(Elf64_Word s, Elf64_Word t) {
   1554     r_info = ((Elf64_Xword)s << 32) + (t&0xffffffffL);
   1555   }
   1556 };
   1557 
   1558 // Program header for ELF32.
   1559 struct Elf32_Phdr {
   1560   Elf32_Word p_type;   // Type of segment
   1561   Elf32_Off  p_offset; // File offset where segment is located, in bytes
   1562   Elf32_Addr p_vaddr;  // Virtual address of beginning of segment
   1563   Elf32_Addr p_paddr;  // Physical address of beginning of segment (OS-specific)
   1564   Elf32_Word p_filesz; // Num. of bytes in file image of segment (may be zero)
   1565   Elf32_Word p_memsz;  // Num. of bytes in mem image of segment (may be zero)
   1566   Elf32_Word p_flags;  // Segment flags
   1567   Elf32_Word p_align;  // Segment alignment constraint
   1568 };
   1569 
   1570 // Program header for ELF64.
   1571 struct Elf64_Phdr {
   1572   Elf64_Word   p_type;   // Type of segment
   1573   Elf64_Word   p_flags;  // Segment flags
   1574   Elf64_Off    p_offset; // File offset where segment is located, in bytes
   1575   Elf64_Addr   p_vaddr;  // Virtual address of beginning of segment
   1576   Elf64_Addr   p_paddr;  // Physical addr of beginning of segment (OS-specific)
   1577   Elf64_Xword  p_filesz; // Num. of bytes in file image of segment (may be zero)
   1578   Elf64_Xword  p_memsz;  // Num. of bytes in mem image of segment (may be zero)
   1579   Elf64_Xword  p_align;  // Segment alignment constraint
   1580 };
   1581 
   1582 // Segment types.
   1583 enum {
   1584   PT_NULL    = 0, // Unused segment.
   1585   PT_LOAD    = 1, // Loadable segment.
   1586   PT_DYNAMIC = 2, // Dynamic linking information.
   1587   PT_INTERP  = 3, // Interpreter pathname.
   1588   PT_NOTE    = 4, // Auxiliary information.
   1589   PT_SHLIB   = 5, // Reserved.
   1590   PT_PHDR    = 6, // The program header table itself.
   1591   PT_TLS     = 7, // The thread-local storage template.
   1592   PT_LOOS    = 0x60000000, // Lowest operating system-specific pt entry type.
   1593   PT_HIOS    = 0x6fffffff, // Highest operating system-specific pt entry type.
   1594   PT_LOPROC  = 0x70000000, // Lowest processor-specific program hdr entry type.
   1595   PT_HIPROC  = 0x7fffffff, // Highest processor-specific program hdr entry type.
   1596 
   1597   // x86-64 program header types.
   1598   // These all contain stack unwind tables.
   1599   PT_GNU_EH_FRAME  = 0x6474e550,
   1600   PT_SUNW_EH_FRAME = 0x6474e550,
   1601   PT_SUNW_UNWIND   = 0x6464e550,
   1602 
   1603   PT_GNU_STACK  = 0x6474e551, // Indicates stack executability.
   1604   PT_GNU_RELRO  = 0x6474e552, // Read-only after relocation.
   1605 
   1606   // ARM program header types.
   1607   PT_ARM_ARCHEXT = 0x70000000, // Platform architecture compatibility info
   1608   // These all contain stack unwind tables.
   1609   PT_ARM_EXIDX   = 0x70000001,
   1610   PT_ARM_UNWIND  = 0x70000001,
   1611 
   1612   // MIPS program header types.
   1613   PT_MIPS_REGINFO  = 0x70000000,  // Register usage information.
   1614   PT_MIPS_RTPROC   = 0x70000001,  // Runtime procedure table.
   1615   PT_MIPS_OPTIONS  = 0x70000002,  // Options segment.
   1616   PT_MIPS_ABIFLAGS = 0x70000003   // Abiflags segment.
   1617 };
   1618 
   1619 // Segment flag bits.
   1620 enum : unsigned {
   1621   PF_X        = 1,         // Execute
   1622   PF_W        = 2,         // Write
   1623   PF_R        = 4,         // Read
   1624   PF_MASKOS   = 0x0ff00000,// Bits for operating system-specific semantics.
   1625   PF_MASKPROC = 0xf0000000 // Bits for processor-specific semantics.
   1626 };
   1627 
   1628 // Dynamic table entry for ELF32.
   1629 struct Elf32_Dyn
   1630 {
   1631   Elf32_Sword d_tag;            // Type of dynamic table entry.
   1632   union
   1633   {
   1634       Elf32_Word d_val;         // Integer value of entry.
   1635       Elf32_Addr d_ptr;         // Pointer value of entry.
   1636   } d_un;
   1637 };
   1638 
   1639 // Dynamic table entry for ELF64.
   1640 struct Elf64_Dyn
   1641 {
   1642   Elf64_Sxword d_tag;           // Type of dynamic table entry.
   1643   union
   1644   {
   1645       Elf64_Xword d_val;        // Integer value of entry.
   1646       Elf64_Addr  d_ptr;        // Pointer value of entry.
   1647   } d_un;
   1648 };
   1649 
   1650 // Dynamic table entry tags.
   1651 enum {
   1652   DT_NULL         = 0,        // Marks end of dynamic array.
   1653   DT_NEEDED       = 1,        // String table offset of needed library.
   1654   DT_PLTRELSZ     = 2,        // Size of relocation entries in PLT.
   1655   DT_PLTGOT       = 3,        // Address associated with linkage table.
   1656   DT_HASH         = 4,        // Address of symbolic hash table.
   1657   DT_STRTAB       = 5,        // Address of dynamic string table.
   1658   DT_SYMTAB       = 6,        // Address of dynamic symbol table.
   1659   DT_RELA         = 7,        // Address of relocation table (Rela entries).
   1660   DT_RELASZ       = 8,        // Size of Rela relocation table.
   1661   DT_RELAENT      = 9,        // Size of a Rela relocation entry.
   1662   DT_STRSZ        = 10,       // Total size of the string table.
   1663   DT_SYMENT       = 11,       // Size of a symbol table entry.
   1664   DT_INIT         = 12,       // Address of initialization function.
   1665   DT_FINI         = 13,       // Address of termination function.
   1666   DT_SONAME       = 14,       // String table offset of a shared objects name.
   1667   DT_RPATH        = 15,       // String table offset of library search path.
   1668   DT_SYMBOLIC     = 16,       // Changes symbol resolution algorithm.
   1669   DT_REL          = 17,       // Address of relocation table (Rel entries).
   1670   DT_RELSZ        = 18,       // Size of Rel relocation table.
   1671   DT_RELENT       = 19,       // Size of a Rel relocation entry.
   1672   DT_PLTREL       = 20,       // Type of relocation entry used for linking.
   1673   DT_DEBUG        = 21,       // Reserved for debugger.
   1674   DT_TEXTREL      = 22,       // Relocations exist for non-writable segments.
   1675   DT_JMPREL       = 23,       // Address of relocations associated with PLT.
   1676   DT_BIND_NOW     = 24,       // Process all relocations before execution.
   1677   DT_INIT_ARRAY   = 25,       // Pointer to array of initialization functions.
   1678   DT_FINI_ARRAY   = 26,       // Pointer to array of termination functions.
   1679   DT_INIT_ARRAYSZ = 27,       // Size of DT_INIT_ARRAY.
   1680   DT_FINI_ARRAYSZ = 28,       // Size of DT_FINI_ARRAY.
   1681   DT_RUNPATH      = 29,       // String table offset of lib search path.
   1682   DT_FLAGS        = 30,       // Flags.
   1683   DT_ENCODING     = 32,       // Values from here to DT_LOOS follow the rules
   1684                               // for the interpretation of the d_un union.
   1685 
   1686   DT_PREINIT_ARRAY = 32,      // Pointer to array of preinit functions.
   1687   DT_PREINIT_ARRAYSZ = 33,    // Size of the DT_PREINIT_ARRAY array.
   1688 
   1689   DT_LOOS         = 0x60000000, // Start of environment specific tags.
   1690   DT_HIOS         = 0x6FFFFFFF, // End of environment specific tags.
   1691   DT_LOPROC       = 0x70000000, // Start of processor specific tags.
   1692   DT_HIPROC       = 0x7FFFFFFF, // End of processor specific tags.
   1693 
   1694   DT_GNU_HASH     = 0x6FFFFEF5, // Reference to the GNU hash table.
   1695   DT_RELACOUNT    = 0x6FFFFFF9, // ELF32_Rela count.
   1696   DT_RELCOUNT     = 0x6FFFFFFA, // ELF32_Rel count.
   1697 
   1698   DT_FLAGS_1      = 0X6FFFFFFB, // Flags_1.
   1699   DT_VERSYM       = 0x6FFFFFF0, // The address of .gnu.version section.
   1700   DT_VERDEF       = 0X6FFFFFFC, // The address of the version definition table.
   1701   DT_VERDEFNUM    = 0X6FFFFFFD, // The number of entries in DT_VERDEF.
   1702   DT_VERNEED      = 0X6FFFFFFE, // The address of the version Dependency table.
   1703   DT_VERNEEDNUM   = 0X6FFFFFFF, // The number of entries in DT_VERNEED.
   1704 
   1705   // Mips specific dynamic table entry tags.
   1706   DT_MIPS_RLD_VERSION   = 0x70000001, // 32 bit version number for runtime
   1707                                       // linker interface.
   1708   DT_MIPS_TIME_STAMP    = 0x70000002, // Time stamp.
   1709   DT_MIPS_ICHECKSUM     = 0x70000003, // Checksum of external strings
   1710                                       // and common sizes.
   1711   DT_MIPS_IVERSION      = 0x70000004, // Index of version string
   1712                                       // in string table.
   1713   DT_MIPS_FLAGS         = 0x70000005, // 32 bits of flags.
   1714   DT_MIPS_BASE_ADDRESS  = 0x70000006, // Base address of the segment.
   1715   DT_MIPS_MSYM          = 0x70000007, // Address of .msym section.
   1716   DT_MIPS_CONFLICT      = 0x70000008, // Address of .conflict section.
   1717   DT_MIPS_LIBLIST       = 0x70000009, // Address of .liblist section.
   1718   DT_MIPS_LOCAL_GOTNO   = 0x7000000a, // Number of local global offset
   1719                                       // table entries.
   1720   DT_MIPS_CONFLICTNO    = 0x7000000b, // Number of entries
   1721                                       // in the .conflict section.
   1722   DT_MIPS_LIBLISTNO     = 0x70000010, // Number of entries
   1723                                       // in the .liblist section.
   1724   DT_MIPS_SYMTABNO      = 0x70000011, // Number of entries
   1725                                       // in the .dynsym section.
   1726   DT_MIPS_UNREFEXTNO    = 0x70000012, // Index of first external dynamic symbol
   1727                                       // not referenced locally.
   1728   DT_MIPS_GOTSYM        = 0x70000013, // Index of first dynamic symbol
   1729                                       // in global offset table.
   1730   DT_MIPS_HIPAGENO      = 0x70000014, // Number of page table entries
   1731                                       // in global offset table.
   1732   DT_MIPS_RLD_MAP       = 0x70000016, // Address of run time loader map,
   1733                                       // used for debugging.
   1734   DT_MIPS_DELTA_CLASS       = 0x70000017, // Delta C++ class definition.
   1735   DT_MIPS_DELTA_CLASS_NO    = 0x70000018, // Number of entries
   1736                                           // in DT_MIPS_DELTA_CLASS.
   1737   DT_MIPS_DELTA_INSTANCE    = 0x70000019, // Delta C++ class instances.
   1738   DT_MIPS_DELTA_INSTANCE_NO = 0x7000001A, // Number of entries
   1739                                           // in DT_MIPS_DELTA_INSTANCE.
   1740   DT_MIPS_DELTA_RELOC       = 0x7000001B, // Delta relocations.
   1741   DT_MIPS_DELTA_RELOC_NO    = 0x7000001C, // Number of entries
   1742                                           // in DT_MIPS_DELTA_RELOC.
   1743   DT_MIPS_DELTA_SYM         = 0x7000001D, // Delta symbols that Delta
   1744                                           // relocations refer to.
   1745   DT_MIPS_DELTA_SYM_NO      = 0x7000001E, // Number of entries
   1746                                           // in DT_MIPS_DELTA_SYM.
   1747   DT_MIPS_DELTA_CLASSSYM    = 0x70000020, // Delta symbols that hold
   1748                                           // class declarations.
   1749   DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021, // Number of entries
   1750                                           // in DT_MIPS_DELTA_CLASSSYM.
   1751   DT_MIPS_CXX_FLAGS         = 0x70000022, // Flags indicating information
   1752                                           // about C++ flavor.
   1753   DT_MIPS_PIXIE_INIT        = 0x70000023, // Pixie information.
   1754   DT_MIPS_SYMBOL_LIB        = 0x70000024, // Address of .MIPS.symlib
   1755   DT_MIPS_LOCALPAGE_GOTIDX  = 0x70000025, // The GOT index of the first PTE
   1756                                           // for a segment
   1757   DT_MIPS_LOCAL_GOTIDX      = 0x70000026, // The GOT index of the first PTE
   1758                                           // for a local symbol
   1759   DT_MIPS_HIDDEN_GOTIDX     = 0x70000027, // The GOT index of the first PTE
   1760                                           // for a hidden symbol
   1761   DT_MIPS_PROTECTED_GOTIDX  = 0x70000028, // The GOT index of the first PTE
   1762                                           // for a protected symbol
   1763   DT_MIPS_OPTIONS           = 0x70000029, // Address of `.MIPS.options'.
   1764   DT_MIPS_INTERFACE         = 0x7000002A, // Address of `.interface'.
   1765   DT_MIPS_DYNSTR_ALIGN      = 0x7000002B, // Unknown.
   1766   DT_MIPS_INTERFACE_SIZE    = 0x7000002C, // Size of the .interface section.
   1767   DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002D, // Size of rld_text_resolve
   1768                                               // function stored in the GOT.
   1769   DT_MIPS_PERF_SUFFIX       = 0x7000002E, // Default suffix of DSO to be added
   1770                                           // by rld on dlopen() calls.
   1771   DT_MIPS_COMPACT_SIZE      = 0x7000002F, // Size of compact relocation
   1772                                           // section (O32).
   1773   DT_MIPS_GP_VALUE          = 0x70000030, // GP value for auxiliary GOTs.
   1774   DT_MIPS_AUX_DYNAMIC       = 0x70000031, // Address of auxiliary .dynamic.
   1775   DT_MIPS_PLTGOT            = 0x70000032, // Address of the base of the PLTGOT.
   1776   DT_MIPS_RWPLT             = 0x70000034  // Points to the base
   1777                                           // of a writable PLT.
   1778 };
   1779 
   1780 // DT_FLAGS values.
   1781 enum {
   1782   DF_ORIGIN     = 0x01, // The object may reference $ORIGIN.
   1783   DF_SYMBOLIC   = 0x02, // Search the shared lib before searching the exe.
   1784   DF_TEXTREL    = 0x04, // Relocations may modify a non-writable segment.
   1785   DF_BIND_NOW   = 0x08, // Process all relocations on load.
   1786   DF_STATIC_TLS = 0x10  // Reject attempts to load dynamically.
   1787 };
   1788 
   1789 // State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 entry.
   1790 enum {
   1791   DF_1_NOW        = 0x00000001, // Set RTLD_NOW for this object.
   1792   DF_1_GLOBAL     = 0x00000002, // Set RTLD_GLOBAL for this object.
   1793   DF_1_GROUP      = 0x00000004, // Set RTLD_GROUP for this object.
   1794   DF_1_NODELETE   = 0x00000008, // Set RTLD_NODELETE for this object.
   1795   DF_1_LOADFLTR   = 0x00000010, // Trigger filtee loading at runtime.
   1796   DF_1_INITFIRST  = 0x00000020, // Set RTLD_INITFIRST for this object.
   1797   DF_1_NOOPEN     = 0x00000040, // Set RTLD_NOOPEN for this object.
   1798   DF_1_ORIGIN     = 0x00000080, // $ORIGIN must be handled.
   1799   DF_1_DIRECT     = 0x00000100, // Direct binding enabled.
   1800   DF_1_TRANS      = 0x00000200,
   1801   DF_1_INTERPOSE  = 0x00000400, // Object is used to interpose.
   1802   DF_1_NODEFLIB   = 0x00000800, // Ignore default lib search path.
   1803   DF_1_NODUMP     = 0x00001000, // Object can't be dldump'ed.
   1804   DF_1_CONFALT    = 0x00002000, // Configuration alternative created.
   1805   DF_1_ENDFILTEE  = 0x00004000, // Filtee terminates filters search.
   1806   DF_1_DISPRELDNE = 0x00008000, // Disp reloc applied at build time.
   1807   DF_1_DISPRELPND = 0x00010000  // Disp reloc applied at run-time.
   1808 };
   1809 
   1810 // DT_MIPS_FLAGS values.
   1811 enum {
   1812   RHF_NONE                    = 0x00000000, // No flags.
   1813   RHF_QUICKSTART              = 0x00000001, // Uses shortcut pointers.
   1814   RHF_NOTPOT                  = 0x00000002, // Hash size is not a power of two.
   1815   RHS_NO_LIBRARY_REPLACEMENT  = 0x00000004, // Ignore LD_LIBRARY_PATH.
   1816   RHF_NO_MOVE                 = 0x00000008, // DSO address may not be relocated.
   1817   RHF_SGI_ONLY                = 0x00000010, // SGI specific features.
   1818   RHF_GUARANTEE_INIT          = 0x00000020, // Guarantee that .init will finish
   1819                                             // executing before any non-init
   1820                                             // code in DSO is called.
   1821   RHF_DELTA_C_PLUS_PLUS       = 0x00000040, // Contains Delta C++ code.
   1822   RHF_GUARANTEE_START_INIT    = 0x00000080, // Guarantee that .init will start
   1823                                             // executing before any non-init
   1824                                             // code in DSO is called.
   1825   RHF_PIXIE                   = 0x00000100, // Generated by pixie.
   1826   RHF_DEFAULT_DELAY_LOAD      = 0x00000200, // Delay-load DSO by default.
   1827   RHF_REQUICKSTART            = 0x00000400, // Object may be requickstarted
   1828   RHF_REQUICKSTARTED          = 0x00000800, // Object has been requickstarted
   1829   RHF_CORD                    = 0x00001000, // Generated by cord.
   1830   RHF_NO_UNRES_UNDEF          = 0x00002000, // Object contains no unresolved
   1831                                             // undef symbols.
   1832   RHF_RLD_ORDER_SAFE          = 0x00004000  // Symbol table is in a safe order.
   1833 };
   1834 
   1835 // ElfXX_VerDef structure version (GNU versioning)
   1836 enum {
   1837   VER_DEF_NONE    = 0,
   1838   VER_DEF_CURRENT = 1
   1839 };
   1840 
   1841 // VerDef Flags (ElfXX_VerDef::vd_flags)
   1842 enum {
   1843   VER_FLG_BASE = 0x1,
   1844   VER_FLG_WEAK = 0x2,
   1845   VER_FLG_INFO = 0x4
   1846 };
   1847 
   1848 // Special constants for the version table. (SHT_GNU_versym/.gnu.version)
   1849 enum {
   1850   VER_NDX_LOCAL  = 0,      // Unversioned local symbol
   1851   VER_NDX_GLOBAL = 1,      // Unversioned global symbol
   1852   VERSYM_VERSION = 0x7fff, // Version Index mask
   1853   VERSYM_HIDDEN  = 0x8000  // Hidden bit (non-default version)
   1854 };
   1855 
   1856 // ElfXX_VerNeed structure version (GNU versioning)
   1857 enum {
   1858   VER_NEED_NONE = 0,
   1859   VER_NEED_CURRENT = 1
   1860 };
   1861 
   1862 struct ElfTypes32 {
   1863   typedef Elf32_Addr Addr;
   1864   typedef Elf32_Off Off;
   1865   typedef Elf32_Half Half;
   1866   typedef Elf32_Word Word;
   1867   typedef Elf32_Sword Sword;
   1868   typedef Elf32_Ehdr Ehdr;
   1869   typedef Elf32_Shdr Shdr;
   1870   typedef Elf32_Sym Sym;
   1871   typedef Elf32_Rel Rel;
   1872   typedef Elf32_Rela Rela;
   1873   typedef Elf32_Phdr Phdr;
   1874   typedef Elf32_Dyn Dyn;
   1875 };
   1876 
   1877 struct ElfTypes64 {
   1878   typedef Elf64_Addr Addr;
   1879   typedef Elf64_Off Off;
   1880   typedef Elf64_Half Half;
   1881   typedef Elf64_Word Word;
   1882   typedef Elf64_Sword Sword;
   1883   typedef Elf64_Xword Xword;
   1884   typedef Elf64_Sxword Sxword;
   1885   typedef Elf64_Ehdr Ehdr;
   1886   typedef Elf64_Shdr Shdr;
   1887   typedef Elf64_Sym Sym;
   1888   typedef Elf64_Rel Rel;
   1889   typedef Elf64_Rela Rela;
   1890   typedef Elf64_Phdr Phdr;
   1891   typedef Elf64_Dyn Dyn;
   1892 };
   1893 
   1894 // BEGIN android-changed
   1895 #endif  // ART_RUNTIME_ELF_H_
   1896 // END android-changed
   1897