Go: cmd/link/internal/ld Index | Files

package ld

import "cmd/link/internal/ld"

Index

Package Files

ar.go config.go data.go deadcode.go decodesym.go dwarf.go elf.go go.go ld.go ldelf.go ldmacho.go ldpe.go lib.go link.go macho.go macho_combine_dwarf.go main.go objfile.go pcln.go pe.go sym.go symbols.go symtab.go typelink.go util.go

Constants

const (
    SARMAG  = 8
    SAR_HDR = 16 + 44
)
const (
    MaxKeySize = 128
    MaxValSize = 128
    BucketSize = 8
)

synthesizemaptypes is way too closely married to runtime/hashmap.c

const (
    LINE_BASE   = -4
    LINE_RANGE  = 10
    PC_RANGE    = (255 - OPCODE_BASE) / LINE_RANGE
    OPCODE_BASE = 10
)

* Generate a sequence of opcodes that is as short as possible. * See section 6.2.5

const (
    EI_MAG0              = 0
    EI_MAG1              = 1
    EI_MAG2              = 2
    EI_MAG3              = 3
    EI_CLASS             = 4
    EI_DATA              = 5
    EI_VERSION           = 6
    EI_OSABI             = 7
    EI_ABIVERSION        = 8
    OLD_EI_BRAND         = 8
    EI_PAD               = 9
    EI_NIDENT            = 16
    ELFMAG0              = 0x7f
    ELFMAG1              = 'E'
    ELFMAG2              = 'L'
    ELFMAG3              = 'F'
    SELFMAG              = 4
    EV_NONE              = 0
    EV_CURRENT           = 1
    ELFCLASSNONE         = 0
    ELFCLASS32           = 1
    ELFCLASS64           = 2
    ELFDATANONE          = 0
    ELFDATA2LSB          = 1
    ELFDATA2MSB          = 2
    ELFOSABI_NONE        = 0
    ELFOSABI_HPUX        = 1
    ELFOSABI_NETBSD      = 2
    ELFOSABI_LINUX       = 3
    ELFOSABI_HURD        = 4
    ELFOSABI_86OPEN      = 5
    ELFOSABI_SOLARIS     = 6
    ELFOSABI_AIX         = 7
    ELFOSABI_IRIX        = 8
    ELFOSABI_FREEBSD     = 9
    ELFOSABI_TRU64       = 10
    ELFOSABI_MODESTO     = 11
    ELFOSABI_OPENBSD     = 12
    ELFOSABI_OPENVMS     = 13
    ELFOSABI_NSK         = 14
    ELFOSABI_ARM         = 97
    ELFOSABI_STANDALONE  = 255
    ELFOSABI_SYSV        = ELFOSABI_NONE
    ELFOSABI_MONTEREY    = ELFOSABI_AIX
    ET_NONE              = 0
    ET_REL               = 1
    ET_EXEC              = 2
    ET_DYN               = 3
    ET_CORE              = 4
    ET_LOOS              = 0xfe00
    ET_HIOS              = 0xfeff
    ET_LOPROC            = 0xff00
    ET_HIPROC            = 0xffff
    EM_NONE              = 0
    EM_M32               = 1
    EM_SPARC             = 2
    EM_386               = 3
    EM_68K               = 4
    EM_88K               = 5
    EM_860               = 7
    EM_MIPS              = 8
    EM_S370              = 9
    EM_MIPS_RS3_LE       = 10
    EM_PARISC            = 15
    EM_VPP500            = 17
    EM_SPARC32PLUS       = 18
    EM_960               = 19
    EM_PPC               = 20
    EM_PPC64             = 21
    EM_S390              = 22
    EM_V800              = 36
    EM_FR20              = 37
    EM_RH32              = 38
    EM_RCE               = 39
    EM_ARM               = 40
    EM_SH                = 42
    EM_SPARCV9           = 43
    EM_TRICORE           = 44
    EM_ARC               = 45
    EM_H8_300            = 46
    EM_H8_300H           = 47
    EM_H8S               = 48
    EM_H8_500            = 49
    EM_IA_64             = 50
    EM_MIPS_X            = 51
    EM_COLDFIRE          = 52
    EM_68HC12            = 53
    EM_MMA               = 54
    EM_PCP               = 55
    EM_NCPU              = 56
    EM_NDR1              = 57
    EM_STARCORE          = 58
    EM_ME16              = 59
    EM_ST100             = 60
    EM_TINYJ             = 61
    EM_X86_64            = 62
    EM_AARCH64           = 183
    EM_486               = 6
    EM_MIPS_RS4_BE       = 10
    EM_ALPHA_STD         = 41
    EM_ALPHA             = 0x9026
    SHN_UNDEF            = 0
    SHN_LORESERVE        = 0xff00
    SHN_LOPROC           = 0xff00
    SHN_HIPROC           = 0xff1f
    SHN_LOOS             = 0xff20
    SHN_HIOS             = 0xff3f
    SHN_ABS              = 0xfff1
    SHN_COMMON           = 0xfff2
    SHN_XINDEX           = 0xffff
    SHN_HIRESERVE        = 0xffff
    SHT_NULL             = 0
    SHT_PROGBITS         = 1
    SHT_SYMTAB           = 2
    SHT_STRTAB           = 3
    SHT_RELA             = 4
    SHT_HASH             = 5
    SHT_DYNAMIC          = 6
    SHT_NOTE             = 7
    SHT_NOBITS           = 8
    SHT_REL              = 9
    SHT_SHLIB            = 10
    SHT_DYNSYM           = 11
    SHT_INIT_ARRAY       = 14
    SHT_FINI_ARRAY       = 15
    SHT_PREINIT_ARRAY    = 16
    SHT_GROUP            = 17
    SHT_SYMTAB_SHNDX     = 18
    SHT_LOOS             = 0x60000000
    SHT_HIOS             = 0x6fffffff
    SHT_GNU_VERDEF       = 0x6ffffffd
    SHT_GNU_VERNEED      = 0x6ffffffe
    SHT_GNU_VERSYM       = 0x6fffffff
    SHT_LOPROC           = 0x70000000
    SHT_ARM_ATTRIBUTES   = 0x70000003
    SHT_HIPROC           = 0x7fffffff
    SHT_LOUSER           = 0x80000000
    SHT_HIUSER           = 0xffffffff
    SHF_WRITE            = 0x1
    SHF_ALLOC            = 0x2
    SHF_EXECINSTR        = 0x4
    SHF_MERGE            = 0x10
    SHF_STRINGS          = 0x20
    SHF_INFO_LINK        = 0x40
    SHF_LINK_ORDER       = 0x80
    SHF_OS_NONCONFORMING = 0x100
    SHF_GROUP            = 0x200
    SHF_TLS              = 0x400
    SHF_MASKOS           = 0x0ff00000
    SHF_MASKPROC         = 0xf0000000
    PT_NULL              = 0
    PT_LOAD              = 1
    PT_DYNAMIC           = 2
    PT_INTERP            = 3
    PT_NOTE              = 4
    PT_SHLIB             = 5
    PT_PHDR              = 6
    PT_TLS               = 7
    PT_LOOS              = 0x60000000
    PT_HIOS              = 0x6fffffff
    PT_LOPROC            = 0x70000000
    PT_HIPROC            = 0x7fffffff
    PT_GNU_STACK         = 0x6474e551
    PT_GNU_RELRO         = 0x6474e552
    PT_PAX_FLAGS         = 0x65041580
    PT_SUNWSTACK         = 0x6ffffffb
    PF_X                 = 0x1
    PF_W                 = 0x2
    PF_R                 = 0x4
    PF_MASKOS            = 0x0ff00000
    PF_MASKPROC          = 0xf0000000
    DT_NULL              = 0
    DT_NEEDED            = 1
    DT_PLTRELSZ          = 2
    DT_PLTGOT            = 3
    DT_HASH              = 4
    DT_STRTAB            = 5
    DT_SYMTAB            = 6
    DT_RELA              = 7
    DT_RELASZ            = 8
    DT_RELAENT           = 9
    DT_STRSZ             = 10
    DT_SYMENT            = 11
    DT_INIT              = 12
    DT_FINI              = 13
    DT_SONAME            = 14
    DT_RPATH             = 15
    DT_SYMBOLIC          = 16
    DT_REL               = 17
    DT_RELSZ             = 18
    DT_RELENT            = 19
    DT_PLTREL            = 20
    DT_DEBUG             = 21
    DT_TEXTREL           = 22
    DT_JMPREL            = 23
    DT_BIND_NOW          = 24
    DT_INIT_ARRAY        = 25
    DT_FINI_ARRAY        = 26
    DT_INIT_ARRAYSZ      = 27
    DT_FINI_ARRAYSZ      = 28
    DT_RUNPATH           = 29
    DT_FLAGS             = 30
    DT_ENCODING          = 32
    DT_PREINIT_ARRAY     = 32
    DT_PREINIT_ARRAYSZ   = 33
    DT_LOOS              = 0x6000000d
    DT_HIOS              = 0x6ffff000
    DT_LOPROC            = 0x70000000
    DT_HIPROC            = 0x7fffffff
    DT_VERNEED           = 0x6ffffffe
    DT_VERNEEDNUM        = 0x6fffffff
    DT_VERSYM            = 0x6ffffff0
    DT_PPC64_GLINK       = DT_LOPROC + 0
    DT_PPC64_OPT         = DT_LOPROC + 3
    DF_ORIGIN            = 0x0001
    DF_SYMBOLIC          = 0x0002
    DF_TEXTREL           = 0x0004
    DF_BIND_NOW          = 0x0008
    DF_STATIC_TLS        = 0x0010
    NT_PRSTATUS          = 1
    NT_FPREGSET          = 2
    NT_PRPSINFO          = 3
    STB_LOCAL            = 0
    STB_GLOBAL           = 1
    STB_WEAK             = 2
    STB_LOOS             = 10
    STB_HIOS             = 12
    STB_LOPROC           = 13
    STB_HIPROC           = 15
    STT_NOTYPE           = 0
    STT_OBJECT           = 1
    STT_FUNC             = 2
    STT_SECTION          = 3
    STT_FILE             = 4
    STT_COMMON           = 5
    STT_TLS              = 6
    STT_LOOS             = 10
    STT_HIOS             = 12
    STT_LOPROC           = 13
    STT_HIPROC           = 15
    STV_DEFAULT          = 0x0
    STV_INTERNAL         = 0x1
    STV_HIDDEN           = 0x2
    STV_PROTECTED        = 0x3
    STN_UNDEF            = 0
)
const (
    R_X86_64_NONE           = 0
    R_X86_64_64             = 1
    R_X86_64_PC32           = 2
    R_X86_64_GOT32          = 3
    R_X86_64_PLT32          = 4
    R_X86_64_COPY           = 5
    R_X86_64_GLOB_DAT       = 6
    R_X86_64_JMP_SLOT       = 7
    R_X86_64_RELATIVE       = 8
    R_X86_64_GOTPCREL       = 9
    R_X86_64_32             = 10
    R_X86_64_32S            = 11
    R_X86_64_16             = 12
    R_X86_64_PC16           = 13
    R_X86_64_8              = 14
    R_X86_64_PC8            = 15
    R_X86_64_DTPMOD64       = 16
    R_X86_64_DTPOFF64       = 17
    R_X86_64_TPOFF64        = 18
    R_X86_64_TLSGD          = 19
    R_X86_64_TLSLD          = 20
    R_X86_64_DTPOFF32       = 21
    R_X86_64_GOTTPOFF       = 22
    R_X86_64_TPOFF32        = 23
    R_X86_64_PC64           = 24
    R_X86_64_GOTOFF64       = 25
    R_X86_64_GOTPC32        = 26
    R_X86_64_GOT64          = 27
    R_X86_64_GOTPCREL64     = 28
    R_X86_64_GOTPC64        = 29
    R_X86_64_GOTPLT64       = 30
    R_X86_64_PLTOFF64       = 31
    R_X86_64_SIZE32         = 32
    R_X86_64_SIZE64         = 33
    R_X86_64_GOTPC32_TLSDEC = 34
    R_X86_64_TLSDESC_CALL   = 35
    R_X86_64_TLSDESC        = 36
    R_X86_64_IRELATIVE      = 37
    R_X86_64_PC32_BND       = 40
    R_X86_64_GOTPCRELX      = 41
    R_X86_64_REX_GOTPCRELX  = 42

    R_AARCH64_ABS64                       = 257
    R_AARCH64_ABS32                       = 258
    R_AARCH64_CALL26                      = 283
    R_AARCH64_ADR_PREL_PG_HI21            = 275
    R_AARCH64_ADD_ABS_LO12_NC             = 277
    R_AARCH64_LDST8_ABS_LO12_NC           = 278
    R_AARCH64_LDST16_ABS_LO12_NC          = 284
    R_AARCH64_LDST32_ABS_LO12_NC          = 285
    R_AARCH64_LDST64_ABS_LO12_NC          = 286
    R_AARCH64_ADR_GOT_PAGE                = 311
    R_AARCH64_LD64_GOT_LO12_NC            = 312
    R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21   = 541
    R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC = 542
    R_AARCH64_TLSLE_MOVW_TPREL_G0         = 547

    R_ALPHA_NONE           = 0
    R_ALPHA_REFLONG        = 1
    R_ALPHA_REFQUAD        = 2
    R_ALPHA_GPREL32        = 3
    R_ALPHA_LITERAL        = 4
    R_ALPHA_LITUSE         = 5
    R_ALPHA_GPDISP         = 6
    R_ALPHA_BRADDR         = 7
    R_ALPHA_HINT           = 8
    R_ALPHA_SREL16         = 9
    R_ALPHA_SREL32         = 10
    R_ALPHA_SREL64         = 11
    R_ALPHA_OP_PUSH        = 12
    R_ALPHA_OP_STORE       = 13
    R_ALPHA_OP_PSUB        = 14
    R_ALPHA_OP_PRSHIFT     = 15
    R_ALPHA_GPVALUE        = 16
    R_ALPHA_GPRELHIGH      = 17
    R_ALPHA_GPRELLOW       = 18
    R_ALPHA_IMMED_GP_16    = 19
    R_ALPHA_IMMED_GP_HI32  = 20
    R_ALPHA_IMMED_SCN_HI32 = 21
    R_ALPHA_IMMED_BR_HI32  = 22
    R_ALPHA_IMMED_LO32     = 23
    R_ALPHA_COPY           = 24
    R_ALPHA_GLOB_DAT       = 25
    R_ALPHA_JMP_SLOT       = 26
    R_ALPHA_RELATIVE       = 27

    R_ARM_NONE          = 0
    R_ARM_PC24          = 1
    R_ARM_ABS32         = 2
    R_ARM_REL32         = 3
    R_ARM_PC13          = 4
    R_ARM_ABS16         = 5
    R_ARM_ABS12         = 6
    R_ARM_THM_ABS5      = 7
    R_ARM_ABS8          = 8
    R_ARM_SBREL32       = 9
    R_ARM_THM_PC22      = 10
    R_ARM_THM_PC8       = 11
    R_ARM_AMP_VCALL9    = 12
    R_ARM_SWI24         = 13
    R_ARM_THM_SWI8      = 14
    R_ARM_XPC25         = 15
    R_ARM_THM_XPC22     = 16
    R_ARM_COPY          = 20
    R_ARM_GLOB_DAT      = 21
    R_ARM_JUMP_SLOT     = 22
    R_ARM_RELATIVE      = 23
    R_ARM_GOTOFF        = 24
    R_ARM_GOTPC         = 25
    R_ARM_GOT32         = 26
    R_ARM_PLT32         = 27
    R_ARM_CALL          = 28
    R_ARM_JUMP24        = 29
    R_ARM_V4BX          = 40
    R_ARM_GOT_PREL      = 96
    R_ARM_GNU_VTENTRY   = 100
    R_ARM_GNU_VTINHERIT = 101
    R_ARM_TLS_IE32      = 107
    R_ARM_TLS_LE32      = 108
    R_ARM_RSBREL32      = 250
    R_ARM_THM_RPC22     = 251
    R_ARM_RREL32        = 252
    R_ARM_RABS32        = 253
    R_ARM_RPC24         = 254
    R_ARM_RBASE         = 255

    R_386_NONE          = 0
    R_386_32            = 1
    R_386_PC32          = 2
    R_386_GOT32         = 3
    R_386_PLT32         = 4
    R_386_COPY          = 5
    R_386_GLOB_DAT      = 6
    R_386_JMP_SLOT      = 7
    R_386_RELATIVE      = 8
    R_386_GOTOFF        = 9
    R_386_GOTPC         = 10
    R_386_TLS_TPOFF     = 14
    R_386_TLS_IE        = 15
    R_386_TLS_GOTIE     = 16
    R_386_TLS_LE        = 17
    R_386_TLS_GD        = 18
    R_386_TLS_LDM       = 19
    R_386_TLS_GD_32     = 24
    R_386_TLS_GD_PUSH   = 25
    R_386_TLS_GD_CALL   = 26
    R_386_TLS_GD_POP    = 27
    R_386_TLS_LDM_32    = 28
    R_386_TLS_LDM_PUSH  = 29
    R_386_TLS_LDM_CALL  = 30
    R_386_TLS_LDM_POP   = 31
    R_386_TLS_LDO_32    = 32
    R_386_TLS_IE_32     = 33
    R_386_TLS_LE_32     = 34
    R_386_TLS_DTPMOD32  = 35
    R_386_TLS_DTPOFF32  = 36
    R_386_TLS_TPOFF32   = 37
    R_386_TLS_GOTDESC   = 39
    R_386_TLS_DESC_CALL = 40
    R_386_TLS_DESC      = 41
    R_386_IRELATIVE     = 42
    R_386_GOT32X        = 43

    R_MIPS_NONE            = 0
    R_MIPS_16              = 1
    R_MIPS_32              = 2
    R_MIPS_REL32           = 3
    R_MIPS_26              = 4
    R_MIPS_HI16            = 5
    R_MIPS_LO16            = 6
    R_MIPS_GPREL16         = 7
    R_MIPS_LITERAL         = 8
    R_MIPS_GOT16           = 9
    R_MIPS_PC16            = 10
    R_MIPS_CALL16          = 11
    R_MIPS_GPREL32         = 12
    R_MIPS_SHIFT5          = 16
    R_MIPS_SHIFT6          = 17
    R_MIPS_64              = 18
    R_MIPS_GOT_DISP        = 19
    R_MIPS_GOT_PAGE        = 20
    R_MIPS_GOT_OFST        = 21
    R_MIPS_GOT_HI16        = 22
    R_MIPS_GOT_LO16        = 23
    R_MIPS_SUB             = 24
    R_MIPS_INSERT_A        = 25
    R_MIPS_INSERT_B        = 26
    R_MIPS_DELETE          = 27
    R_MIPS_HIGHER          = 28
    R_MIPS_HIGHEST         = 29
    R_MIPS_CALL_HI16       = 30
    R_MIPS_CALL_LO16       = 31
    R_MIPS_SCN_DISP        = 32
    R_MIPS_REL16           = 33
    R_MIPS_ADD_IMMEDIATE   = 34
    R_MIPS_PJUMP           = 35
    R_MIPS_RELGOT          = 36
    R_MIPS_JALR            = 37
    R_MIPS_TLS_DTPMOD32    = 38
    R_MIPS_TLS_DTPREL32    = 39
    R_MIPS_TLS_DTPMOD64    = 40
    R_MIPS_TLS_DTPREL64    = 41
    R_MIPS_TLS_GD          = 42
    R_MIPS_TLS_LDM         = 43
    R_MIPS_TLS_DTPREL_HI16 = 44
    R_MIPS_TLS_DTPREL_LO16 = 45
    R_MIPS_TLS_GOTTPREL    = 46
    R_MIPS_TLS_TPREL32     = 47
    R_MIPS_TLS_TPREL64     = 48
    R_MIPS_TLS_TPREL_HI16  = 49
    R_MIPS_TLS_TPREL_LO16  = 50

    R_PPC_NONE            = 0
    R_PPC_ADDR32          = 1
    R_PPC_ADDR24          = 2
    R_PPC_ADDR16          = 3
    R_PPC_ADDR16_LO       = 4
    R_PPC_ADDR16_HI       = 5
    R_PPC_ADDR16_HA       = 6
    R_PPC_ADDR14          = 7
    R_PPC_ADDR14_BRTAKEN  = 8
    R_PPC_ADDR14_BRNTAKEN = 9
    R_PPC_REL24           = 10
    R_PPC_REL14           = 11
    R_PPC_REL14_BRTAKEN   = 12
    R_PPC_REL14_BRNTAKEN  = 13
    R_PPC_GOT16           = 14
    R_PPC_GOT16_LO        = 15
    R_PPC_GOT16_HI        = 16
    R_PPC_GOT16_HA        = 17
    R_PPC_PLTREL24        = 18
    R_PPC_COPY            = 19
    R_PPC_GLOB_DAT        = 20
    R_PPC_JMP_SLOT        = 21
    R_PPC_RELATIVE        = 22
    R_PPC_LOCAL24PC       = 23
    R_PPC_UADDR32         = 24
    R_PPC_UADDR16         = 25
    R_PPC_REL32           = 26
    R_PPC_PLT32           = 27
    R_PPC_PLTREL32        = 28
    R_PPC_PLT16_LO        = 29
    R_PPC_PLT16_HI        = 30
    R_PPC_PLT16_HA        = 31
    R_PPC_SDAREL16        = 32
    R_PPC_SECTOFF         = 33
    R_PPC_SECTOFF_LO      = 34
    R_PPC_SECTOFF_HI      = 35
    R_PPC_SECTOFF_HA      = 36
    R_PPC_TLS             = 67
    R_PPC_DTPMOD32        = 68
    R_PPC_TPREL16         = 69
    R_PPC_TPREL16_LO      = 70
    R_PPC_TPREL16_HI      = 71
    R_PPC_TPREL16_HA      = 72
    R_PPC_TPREL32         = 73
    R_PPC_DTPREL16        = 74
    R_PPC_DTPREL16_LO     = 75
    R_PPC_DTPREL16_HI     = 76
    R_PPC_DTPREL16_HA     = 77
    R_PPC_DTPREL32        = 78
    R_PPC_GOT_TLSGD16     = 79
    R_PPC_GOT_TLSGD16_LO  = 80
    R_PPC_GOT_TLSGD16_HI  = 81
    R_PPC_GOT_TLSGD16_HA  = 82
    R_PPC_GOT_TLSLD16     = 83
    R_PPC_GOT_TLSLD16_LO  = 84
    R_PPC_GOT_TLSLD16_HI  = 85
    R_PPC_GOT_TLSLD16_HA  = 86
    R_PPC_GOT_TPREL16     = 87
    R_PPC_GOT_TPREL16_LO  = 88
    R_PPC_GOT_TPREL16_HI  = 89
    R_PPC_GOT_TPREL16_HA  = 90
    R_PPC_EMB_NADDR32     = 101
    R_PPC_EMB_NADDR16     = 102
    R_PPC_EMB_NADDR16_LO  = 103
    R_PPC_EMB_NADDR16_HI  = 104
    R_PPC_EMB_NADDR16_HA  = 105
    R_PPC_EMB_SDAI16      = 106
    R_PPC_EMB_SDA2I16     = 107
    R_PPC_EMB_SDA2REL     = 108
    R_PPC_EMB_SDA21       = 109
    R_PPC_EMB_MRKREF      = 110
    R_PPC_EMB_RELSEC16    = 111
    R_PPC_EMB_RELST_LO    = 112
    R_PPC_EMB_RELST_HI    = 113
    R_PPC_EMB_RELST_HA    = 114
    R_PPC_EMB_BIT_FLD     = 115
    R_PPC_EMB_RELSDA      = 116

    R_PPC64_ADDR32            = R_PPC_ADDR32
    R_PPC64_ADDR16_LO         = R_PPC_ADDR16_LO
    R_PPC64_ADDR16_HA         = R_PPC_ADDR16_HA
    R_PPC64_REL24             = R_PPC_REL24
    R_PPC64_GOT16_HA          = R_PPC_GOT16_HA
    R_PPC64_JMP_SLOT          = R_PPC_JMP_SLOT
    R_PPC64_TPREL16           = R_PPC_TPREL16
    R_PPC64_ADDR64            = 38
    R_PPC64_TOC16             = 47
    R_PPC64_TOC16_LO          = 48
    R_PPC64_TOC16_HI          = 49
    R_PPC64_TOC16_HA          = 50
    R_PPC64_ADDR16_LO_DS      = 57
    R_PPC64_GOT16_LO_DS       = 59
    R_PPC64_TOC16_DS          = 63
    R_PPC64_TOC16_LO_DS       = 64
    R_PPC64_TLS               = 67
    R_PPC64_GOT_TPREL16_LO_DS = 88
    R_PPC64_GOT_TPREL16_HA    = 90
    R_PPC64_REL16_LO          = 250
    R_PPC64_REL16_HI          = 251
    R_PPC64_REL16_HA          = 252

    R_SPARC_NONE     = 0
    R_SPARC_8        = 1
    R_SPARC_16       = 2
    R_SPARC_32       = 3
    R_SPARC_DISP8    = 4
    R_SPARC_DISP16   = 5
    R_SPARC_DISP32   = 6
    R_SPARC_WDISP30  = 7
    R_SPARC_WDISP22  = 8
    R_SPARC_HI22     = 9
    R_SPARC_22       = 10
    R_SPARC_13       = 11
    R_SPARC_LO10     = 12
    R_SPARC_GOT10    = 13
    R_SPARC_GOT13    = 14
    R_SPARC_GOT22    = 15
    R_SPARC_PC10     = 16
    R_SPARC_PC22     = 17
    R_SPARC_WPLT30   = 18
    R_SPARC_COPY     = 19
    R_SPARC_GLOB_DAT = 20
    R_SPARC_JMP_SLOT = 21
    R_SPARC_RELATIVE = 22
    R_SPARC_UA32     = 23
    R_SPARC_PLT32    = 24
    R_SPARC_HIPLT22  = 25
    R_SPARC_LOPLT10  = 26
    R_SPARC_PCPLT32  = 27
    R_SPARC_PCPLT22  = 28
    R_SPARC_PCPLT10  = 29
    R_SPARC_10       = 30
    R_SPARC_11       = 31
    R_SPARC_64       = 32
    R_SPARC_OLO10    = 33
    R_SPARC_HH22     = 34
    R_SPARC_HM10     = 35
    R_SPARC_LM22     = 36
    R_SPARC_PC_HH22  = 37
    R_SPARC_PC_HM10  = 38
    R_SPARC_PC_LM22  = 39
    R_SPARC_WDISP16  = 40
    R_SPARC_WDISP19  = 41
    R_SPARC_GLOB_JMP = 42
    R_SPARC_7        = 43
    R_SPARC_5        = 44
    R_SPARC_6        = 45
    R_SPARC_DISP64   = 46
    R_SPARC_PLT64    = 47
    R_SPARC_HIX22    = 48
    R_SPARC_LOX10    = 49
    R_SPARC_H44      = 50
    R_SPARC_M44      = 51
    R_SPARC_L44      = 52
    R_SPARC_REGISTER = 53
    R_SPARC_UA64     = 54
    R_SPARC_UA16     = 55

    R_390_NONE        = 0
    R_390_8           = 1
    R_390_12          = 2
    R_390_16          = 3
    R_390_32          = 4
    R_390_PC32        = 5
    R_390_GOT12       = 6
    R_390_GOT32       = 7
    R_390_PLT32       = 8
    R_390_COPY        = 9
    R_390_GLOB_DAT    = 10
    R_390_JMP_SLOT    = 11
    R_390_RELATIVE    = 12
    R_390_GOTOFF      = 13
    R_390_GOTPC       = 14
    R_390_GOT16       = 15
    R_390_PC16        = 16
    R_390_PC16DBL     = 17
    R_390_PLT16DBL    = 18
    R_390_PC32DBL     = 19
    R_390_PLT32DBL    = 20
    R_390_GOTPCDBL    = 21
    R_390_64          = 22
    R_390_PC64        = 23
    R_390_GOT64       = 24
    R_390_PLT64       = 25
    R_390_GOTENT      = 26
    R_390_GOTOFF16    = 27
    R_390_GOTOFF64    = 28
    R_390_GOTPLT12    = 29
    R_390_GOTPLT16    = 30
    R_390_GOTPLT32    = 31
    R_390_GOTPLT64    = 32
    R_390_GOTPLTENT   = 33
    R_390_GOTPLTOFF16 = 34
    R_390_GOTPLTOFF32 = 35
    R_390_GOTPLTOFF64 = 36
    R_390_TLS_LOAD    = 37
    R_390_TLS_GDCALL  = 38
    R_390_TLS_LDCALL  = 39
    R_390_TLS_GD32    = 40
    R_390_TLS_GD64    = 41
    R_390_TLS_GOTIE12 = 42
    R_390_TLS_GOTIE32 = 43
    R_390_TLS_GOTIE64 = 44
    R_390_TLS_LDM32   = 45
    R_390_TLS_LDM64   = 46
    R_390_TLS_IE32    = 47
    R_390_TLS_IE64    = 48
    R_390_TLS_IEENT   = 49
    R_390_TLS_LE32    = 50
    R_390_TLS_LE64    = 51
    R_390_TLS_LDO32   = 52
    R_390_TLS_LDO64   = 53
    R_390_TLS_DTPMOD  = 54
    R_390_TLS_DTPOFF  = 55
    R_390_TLS_TPOFF   = 56
    R_390_20          = 57
    R_390_GOT20       = 58
    R_390_GOTPLT20    = 59
    R_390_TLS_GOTIE20 = 60

    ARM_MAGIC_TRAMP_NUMBER = 0x5c000003
)

* Relocation types.

const (
    ELF64HDRSIZE  = 64
    ELF64PHDRSIZE = 56
    ELF64SHDRSIZE = 64
    ELF64RELSIZE  = 16
    ELF64RELASIZE = 24
    ELF64SYMSIZE  = 24
    ELF32HDRSIZE  = 52
    ELF32PHDRSIZE = 32
    ELF32SHDRSIZE = 40
    ELF32SYMSIZE  = 16
    ELF32RELSIZE  = 8
)

* Go linker interface

const (
    ELF_NOTE_NETBSD_NAMESZ  = 7
    ELF_NOTE_NETBSD_DESCSZ  = 4
    ELF_NOTE_NETBSD_TAG     = 1
    ELF_NOTE_NETBSD_VERSION = 599000000 /* NetBSD 5.99 */
)

NetBSD Signature (as per sys/exec_elf.h)

const (
    ELF_NOTE_OPENBSD_NAMESZ  = 8
    ELF_NOTE_OPENBSD_DESCSZ  = 4
    ELF_NOTE_OPENBSD_TAG     = 1
    ELF_NOTE_OPENBSD_VERSION = 0
)

OpenBSD Signature

const (
    ELF_NOTE_BUILDINFO_NAMESZ = 4
    ELF_NOTE_BUILDINFO_TAG    = 3
)

Build info note

const (
    ELF_NOTE_GOPKGLIST_TAG = 1
    ELF_NOTE_GOABIHASH_TAG = 2
    ELF_NOTE_GODEPS_TAG    = 3
    ELF_NOTE_GOBUILDID_TAG = 4
)

Go specific notes

const (
    ElfClassNone = 0
    ElfClass32   = 1
    ElfClass64   = 2
)

Derived from Plan 9 from User Space's src/libmach/elf.h, elf.c http://code.swtch.com/plan9port/src/tip/src/libmach/

Copyright © 2004 Russ Cox.
Portions Copyright © 2008-2010 Google Inc.
Portions Copyright © 2010 The Go Authors.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

const (
    ElfDataNone = 0
    ElfDataLsb  = 1
    ElfDataMsb  = 2
)
const (
    ElfTypeNone         = 0
    ElfTypeRelocatable  = 1
    ElfTypeExecutable   = 2
    ElfTypeSharedObject = 3
    ElfTypeCore         = 4
)
const (
    ElfMachNone        = 0
    ElfMach32100       = 1
    ElfMachSparc       = 2
    ElfMach386         = 3
    ElfMach68000       = 4
    ElfMach88000       = 5
    ElfMach486         = 6
    ElfMach860         = 7
    ElfMachMips        = 8
    ElfMachS370        = 9
    ElfMachMipsLe      = 10
    ElfMachParisc      = 15
    ElfMachVpp500      = 17
    ElfMachSparc32Plus = 18
    ElfMach960         = 19
    ElfMachPower       = 20
    ElfMachPower64     = 21
    ElfMachS390        = 22
    ElfMachV800        = 36
    ElfMachFr20        = 37
    ElfMachRh32        = 38
    ElfMachRce         = 39
    ElfMachArm         = 40
    ElfMachAlpha       = 41
    ElfMachSH          = 42
    ElfMachSparc9      = 43
    ElfMachAmd64       = 62
    ElfMachArm64       = 183
)
const (
    ElfAbiNone     = 0
    ElfAbiSystemV  = 0
    ElfAbiHPUX     = 1
    ElfAbiNetBSD   = 2
    ElfAbiLinux    = 3
    ElfAbiSolaris  = 6
    ElfAbiAix      = 7
    ElfAbiIrix     = 8
    ElfAbiFreeBSD  = 9
    ElfAbiTru64    = 10
    ElfAbiModesto  = 11
    ElfAbiOpenBSD  = 12
    ElfAbiARM      = 97
    ElfAbiEmbedded = 255
)
const (
    ElfSectNone      = 0
    ElfSectProgbits  = 1
    ElfSectSymtab    = 2
    ElfSectStrtab    = 3
    ElfSectRela      = 4
    ElfSectHash      = 5
    ElfSectDynamic   = 6
    ElfSectNote      = 7
    ElfSectNobits    = 8
    ElfSectRel       = 9
    ElfSectShlib     = 10
    ElfSectDynsym    = 11
    ElfSectFlagWrite = 0x1
    ElfSectFlagAlloc = 0x2
    ElfSectFlagExec  = 0x4
)
const (
    ElfSymBindLocal  = 0
    ElfSymBindGlobal = 1
    ElfSymBindWeak   = 2
)
const (
    ElfSymTypeNone    = 0
    ElfSymTypeObject  = 1
    ElfSymTypeFunc    = 2
    ElfSymTypeSection = 3
    ElfSymTypeFile    = 4
    ElfSymTypeCommon  = 5
    ElfSymTypeTLS     = 6
)
const (
    ElfSymShnNone   = 0
    ElfSymShnAbs    = 0xFFF1
    ElfSymShnCommon = 0xFFF2
)
const (
    ElfProgNone      = 0
    ElfProgLoad      = 1
    ElfProgDynamic   = 2
    ElfProgInterp    = 3
    ElfProgNote      = 4
    ElfProgShlib     = 5
    ElfProgPhdr      = 6
    ElfProgFlagExec  = 0x1
    ElfProgFlagWrite = 0x2
    ElfProgFlagRead  = 0x4
)
const (
    ElfNotePrStatus     = 1
    ElfNotePrFpreg      = 2
    ElfNotePrPsinfo     = 3
    ElfNotePrTaskstruct = 4
    ElfNotePrAuxv       = 6
    ElfNotePrXfpreg     = 0x46e62b7f
)
const (
    TagFile               = 1
    TagCPUName            = 4
    TagCPURawName         = 5
    TagCompatibility      = 32
    TagNoDefaults         = 64
    TagAlsoCompatibleWith = 65
    TagABIVFPArgs         = 28
)
const (
    N_EXT  = 0x01
    N_TYPE = 0x1e
    N_STAB = 0xe0
)

Derived from Plan 9 from User Space's src/libmach/elf.h, elf.c http://code.swtch.com/plan9port/src/tip/src/libmach/

Copyright © 2004 Russ Cox.
Portions Copyright © 2008-2010 Google Inc.
Portions Copyright © 2010 The Go Authors.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

const (
    LdMachoCpuVax         = 1
    LdMachoCpu68000       = 6
    LdMachoCpu386         = 7
    LdMachoCpuAmd64       = 0x1000007
    LdMachoCpuMips        = 8
    LdMachoCpu98000       = 10
    LdMachoCpuHppa        = 11
    LdMachoCpuArm         = 12
    LdMachoCpu88000       = 13
    LdMachoCpuSparc       = 14
    LdMachoCpu860         = 15
    LdMachoCpuAlpha       = 16
    LdMachoCpuPower       = 18
    LdMachoCmdSegment     = 1
    LdMachoCmdSymtab      = 2
    LdMachoCmdSymseg      = 3
    LdMachoCmdThread      = 4
    LdMachoCmdDysymtab    = 11
    LdMachoCmdSegment64   = 25
    LdMachoFileObject     = 1
    LdMachoFileExecutable = 2
    LdMachoFileFvmlib     = 3
    LdMachoFileCore       = 4
    LdMachoFilePreload    = 5
)
const (
    IMAGE_SYM_UNDEFINED              = 0
    IMAGE_SYM_ABSOLUTE               = -1
    IMAGE_SYM_DEBUG                  = -2
    IMAGE_SYM_TYPE_NULL              = 0
    IMAGE_SYM_TYPE_VOID              = 1
    IMAGE_SYM_TYPE_CHAR              = 2
    IMAGE_SYM_TYPE_SHORT             = 3
    IMAGE_SYM_TYPE_INT               = 4
    IMAGE_SYM_TYPE_LONG              = 5
    IMAGE_SYM_TYPE_FLOAT             = 6
    IMAGE_SYM_TYPE_DOUBLE            = 7
    IMAGE_SYM_TYPE_STRUCT            = 8
    IMAGE_SYM_TYPE_UNION             = 9
    IMAGE_SYM_TYPE_ENUM              = 10
    IMAGE_SYM_TYPE_MOE               = 11
    IMAGE_SYM_TYPE_BYTE              = 12
    IMAGE_SYM_TYPE_WORD              = 13
    IMAGE_SYM_TYPE_UINT              = 14
    IMAGE_SYM_TYPE_DWORD             = 15
    IMAGE_SYM_TYPE_PCODE             = 32768
    IMAGE_SYM_DTYPE_NULL             = 0
    IMAGE_SYM_DTYPE_POINTER          = 0x10
    IMAGE_SYM_DTYPE_FUNCTION         = 0x20
    IMAGE_SYM_DTYPE_ARRAY            = 0x30
    IMAGE_SYM_CLASS_END_OF_FUNCTION  = -1
    IMAGE_SYM_CLASS_NULL             = 0
    IMAGE_SYM_CLASS_AUTOMATIC        = 1
    IMAGE_SYM_CLASS_EXTERNAL         = 2
    IMAGE_SYM_CLASS_STATIC           = 3
    IMAGE_SYM_CLASS_REGISTER         = 4
    IMAGE_SYM_CLASS_EXTERNAL_DEF     = 5
    IMAGE_SYM_CLASS_LABEL            = 6
    IMAGE_SYM_CLASS_UNDEFINED_LABEL  = 7
    IMAGE_SYM_CLASS_MEMBER_OF_STRUCT = 8
    IMAGE_SYM_CLASS_ARGUMENT         = 9
    IMAGE_SYM_CLASS_STRUCT_TAG       = 10
    IMAGE_SYM_CLASS_MEMBER_OF_UNION  = 11
    IMAGE_SYM_CLASS_UNION_TAG        = 12
    IMAGE_SYM_CLASS_TYPE_DEFINITION  = 13
    IMAGE_SYM_CLASS_UNDEFINED_STATIC = 14
    IMAGE_SYM_CLASS_ENUM_TAG         = 15
    IMAGE_SYM_CLASS_MEMBER_OF_ENUM   = 16
    IMAGE_SYM_CLASS_REGISTER_PARAM   = 17
    IMAGE_SYM_CLASS_BIT_FIELD        = 18
    IMAGE_SYM_CLASS_FAR_EXTERNAL     = 68 /* Not in PECOFF v8 spec */
    IMAGE_SYM_CLASS_BLOCK            = 100
    IMAGE_SYM_CLASS_FUNCTION         = 101
    IMAGE_SYM_CLASS_END_OF_STRUCT    = 102
    IMAGE_SYM_CLASS_FILE             = 103
    IMAGE_SYM_CLASS_SECTION          = 104
    IMAGE_SYM_CLASS_WEAK_EXTERNAL    = 105
    IMAGE_SYM_CLASS_CLR_TOKEN        = 107
    IMAGE_REL_I386_ABSOLUTE          = 0x0000
    IMAGE_REL_I386_DIR16             = 0x0001
    IMAGE_REL_I386_REL16             = 0x0002
    IMAGE_REL_I386_DIR32             = 0x0006
    IMAGE_REL_I386_DIR32NB           = 0x0007
    IMAGE_REL_I386_SEG12             = 0x0009
    IMAGE_REL_I386_SECTION           = 0x000A
    IMAGE_REL_I386_SECREL            = 0x000B
    IMAGE_REL_I386_TOKEN             = 0x000C
    IMAGE_REL_I386_SECREL7           = 0x000D
    IMAGE_REL_I386_REL32             = 0x0014
    IMAGE_REL_AMD64_ABSOLUTE         = 0x0000
    IMAGE_REL_AMD64_ADDR64           = 0x0001
    IMAGE_REL_AMD64_ADDR32           = 0x0002
    IMAGE_REL_AMD64_ADDR32NB         = 0x0003
    IMAGE_REL_AMD64_REL32            = 0x0004
    IMAGE_REL_AMD64_REL32_1          = 0x0005
    IMAGE_REL_AMD64_REL32_2          = 0x0006
    IMAGE_REL_AMD64_REL32_3          = 0x0007
    IMAGE_REL_AMD64_REL32_4          = 0x0008
    IMAGE_REL_AMD64_REL32_5          = 0x0009
    IMAGE_REL_AMD64_SECTION          = 0x000A
    IMAGE_REL_AMD64_SECREL           = 0x000B
    IMAGE_REL_AMD64_SECREL7          = 0x000C
    IMAGE_REL_AMD64_TOKEN            = 0x000D
    IMAGE_REL_AMD64_SREL32           = 0x000E
    IMAGE_REL_AMD64_PAIR             = 0x000F
    IMAGE_REL_AMD64_SSPAN32          = 0x0010
)
const (
    FileObj = 0 + iota
    ArchiveObj
    Pkgdef
)

whence for ldpkg

const (
    MACHO_CPU_AMD64               = 1<<24 | 7
    MACHO_CPU_386                 = 7
    MACHO_SUBCPU_X86              = 3
    MACHO_CPU_ARM                 = 12
    MACHO_SUBCPU_ARM              = 0
    MACHO_SUBCPU_ARMV7            = 9
    MACHO_CPU_ARM64               = 1<<24 | 12
    MACHO_SUBCPU_ARM64_ALL        = 0
    MACHO32SYMSIZE                = 12
    MACHO64SYMSIZE                = 16
    MACHO_X86_64_RELOC_UNSIGNED   = 0
    MACHO_X86_64_RELOC_SIGNED     = 1
    MACHO_X86_64_RELOC_BRANCH     = 2
    MACHO_X86_64_RELOC_GOT_LOAD   = 3
    MACHO_X86_64_RELOC_GOT        = 4
    MACHO_X86_64_RELOC_SUBTRACTOR = 5
    MACHO_X86_64_RELOC_SIGNED_1   = 6
    MACHO_X86_64_RELOC_SIGNED_2   = 7
    MACHO_X86_64_RELOC_SIGNED_4   = 8
    MACHO_ARM_RELOC_VANILLA       = 0
    MACHO_ARM_RELOC_PAIR          = 1
    MACHO_ARM_RELOC_SECTDIFF      = 2
    MACHO_ARM_RELOC_BR24          = 5
    MACHO_ARM64_RELOC_UNSIGNED    = 0
    MACHO_ARM64_RELOC_BRANCH26    = 2
    MACHO_ARM64_RELOC_PAGE21      = 3
    MACHO_ARM64_RELOC_PAGEOFF12   = 4
    MACHO_ARM64_RELOC_ADDEND      = 10
    MACHO_GENERIC_RELOC_VANILLA   = 0
    MACHO_FAKE_GOTPCREL           = 100
)
const (
    SymKindLocal = 0 + iota
    SymKindExtdef
    SymKindUndef
    NumSymKind
)
const (
    LC_ID_DYLIB             = 0xd
    LC_LOAD_DYLINKER        = 0xe
    LC_PREBOUND_DYLIB       = 0x10
    LC_LOAD_WEAK_DYLIB      = 0x18
    LC_UUID                 = 0x1b
    LC_RPATH                = 0x8000001c
    LC_CODE_SIGNATURE       = 0x1d
    LC_SEGMENT_SPLIT_INFO   = 0x1e
    LC_REEXPORT_DYLIB       = 0x8000001f
    LC_ENCRYPTION_INFO      = 0x21
    LC_DYLD_INFO            = 0x22
    LC_DYLD_INFO_ONLY       = 0x80000022
    LC_VERSION_MIN_MACOSX   = 0x24
    LC_VERSION_MIN_IPHONEOS = 0x25
    LC_FUNCTION_STARTS      = 0x26
    LC_MAIN                 = 0x80000028
    LC_DATA_IN_CODE         = 0x29
    LC_SOURCE_VERSION       = 0x2A
    LC_DYLIB_CODE_SIGN_DRS  = 0x2B
    LC_ENCRYPTION_INFO_64   = 0x2C
)
const (
    BUCKETSIZE    = 256 * MINFUNC
    SUBBUCKETS    = 16
    SUBBUCKETSIZE = BUCKETSIZE / SUBBUCKETS
    NOIDX         = 0x7fffffff
)
const (
    PEBASE = 0x00400000

    // SectionAlignment must be greater than or equal to FileAlignment.
    // The default is the page size for the architecture.
    PESECTALIGN = 0x1000

    // FileAlignment should be a power of 2 between 512 and 64 K, inclusive.
    // The default is 512. If the SectionAlignment is less than
    // the architecture's page size, then FileAlignment must match SectionAlignment.
    PEFILEALIGN = 2 << 8
)
const (
    IMAGE_FILE_MACHINE_I386              = 0x14c
    IMAGE_FILE_MACHINE_AMD64             = 0x8664
    IMAGE_FILE_RELOCS_STRIPPED           = 0x0001
    IMAGE_FILE_EXECUTABLE_IMAGE          = 0x0002
    IMAGE_FILE_LINE_NUMS_STRIPPED        = 0x0004
    IMAGE_FILE_LARGE_ADDRESS_AWARE       = 0x0020
    IMAGE_FILE_32BIT_MACHINE             = 0x0100
    IMAGE_FILE_DEBUG_STRIPPED            = 0x0200
    IMAGE_SCN_CNT_CODE                   = 0x00000020
    IMAGE_SCN_CNT_INITIALIZED_DATA       = 0x00000040
    IMAGE_SCN_CNT_UNINITIALIZED_DATA     = 0x00000080
    IMAGE_SCN_MEM_EXECUTE                = 0x20000000
    IMAGE_SCN_MEM_READ                   = 0x40000000
    IMAGE_SCN_MEM_WRITE                  = 0x80000000
    IMAGE_SCN_MEM_DISCARDABLE            = 0x2000000
    IMAGE_SCN_LNK_NRELOC_OVFL            = 0x1000000
    IMAGE_SCN_ALIGN_32BYTES              = 0x600000
    IMAGE_DIRECTORY_ENTRY_EXPORT         = 0
    IMAGE_DIRECTORY_ENTRY_IMPORT         = 1
    IMAGE_DIRECTORY_ENTRY_RESOURCE       = 2
    IMAGE_DIRECTORY_ENTRY_EXCEPTION      = 3
    IMAGE_DIRECTORY_ENTRY_SECURITY       = 4
    IMAGE_DIRECTORY_ENTRY_BASERELOC      = 5
    IMAGE_DIRECTORY_ENTRY_DEBUG          = 6
    IMAGE_DIRECTORY_ENTRY_COPYRIGHT      = 7
    IMAGE_DIRECTORY_ENTRY_ARCHITECTURE   = 7
    IMAGE_DIRECTORY_ENTRY_GLOBALPTR      = 8
    IMAGE_DIRECTORY_ENTRY_TLS            = 9
    IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG    = 10
    IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT   = 11
    IMAGE_DIRECTORY_ENTRY_IAT            = 12
    IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT   = 13
    IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR = 14
    IMAGE_SUBSYSTEM_WINDOWS_GUI          = 2
    IMAGE_SUBSYSTEM_WINDOWS_CUI          = 3
)
const (
    ARMAG = "!<arch>\n"
)
const (
    COMPUNITHEADERSIZE = 4 + 2 + 4 + 1
)

* Walk DWarfDebugInfoEntries, and emit .debug_info

const (
    ELFRESERVE = 4096
)

* Total amount of space to reserve at the start of the file * for Header, PHeaders, SHeaders, and interp. * May waste some. * On FreeBSD, cannot be larger than a page.

const (
    INITIAL_MACHO_HEADR = 4 * 1024
)

* Total amount of space to reserve at the start of the file * for Header, PHeaders, and SHeaders. * May waste some.

const (
    MINFUNC = 16 // minimum size for a function
)
const (
    NSECT = 400
)

* We use the 64-bit data structures on both 32- and 64-bit machines * in order to write the code just once. The 64-bit data structure is * written in the 32-bit format on the 32-bit machines.

Variables

var (
    Linkmode  LinkMode
    Buildmode BuildMode
)
var (
    Iself bool

    Nelfsym int = 1
)
var (
    Thearch Arch
    Lcsize  int32

    Spsize  int32
    Symsize int32
)
var (
    SysArch *sys.Arch

    Funcalign int

    HEADR    int32
    Headtype obj.HeadType
)
var (
    FlagLinkshared = flag.Bool("linkshared", false, "link against installed Go shared libraries")

    FlagC = flag.Bool("c", false, "dump call graph")
    FlagD = flag.Bool("d", false, "disable dynamic executable")

    FlagS = flag.Bool("s", false, "disable symbol table")

    FlagW = flag.Bool("w", false, "disable DWARF generation")
    Flag8 bool // use 64-bit addresses in symbol table

    FlagDebugTramp = flag.Int("debugtramp", 0, "debug trampolines")

    FlagRound    = flag.Int("R", -1, "set address rounding `quantum`")
    FlagTextAddr = flag.Int64("T", -1, "set text segment `address`")
    FlagDataAddr = flag.Int64("D", -1, "set data segment `address`")
)

Flags used by the linker. The exported flags are used by the architecture-specific packages.

var ELF_NOTE_BUILDINFO_NAME = []byte("GNU\x00")
var ELF_NOTE_GO_NAME = []byte("Go\x00\x00")
var ELF_NOTE_NETBSD_NAME = []byte("NetBSD\x00")
var ELF_NOTE_OPENBSD_NAME = []byte("OpenBSD\x00")
var ElfMagic = [4]uint8{0x7F, 'E', 'L', 'F'}
var Elfstrdat []byte
var PEFILEHEADR int32
var PESECTHEADR int32

func Addaddr Uses

func Addaddr(ctxt *Link, s *Symbol, t *Symbol) int64

func Addaddrplus Uses

func Addaddrplus(ctxt *Link, s *Symbol, t *Symbol, add int64) int64

func Addbytes Uses

func Addbytes(s *Symbol, bytes []byte) int64

func Adddynsym Uses

func Adddynsym(ctxt *Link, s *Symbol)

func Addpcrelplus Uses

func Addpcrelplus(ctxt *Link, s *Symbol, t *Symbol, add int64) int64

func Addstring Uses

func Addstring(s *Symbol, str string) int64

func Adduint16 Uses

func Adduint16(ctxt *Link, s *Symbol, v uint16) int64

func Adduint32 Uses

func Adduint32(ctxt *Link, s *Symbol, v uint32) int64

func Adduint64 Uses

func Adduint64(ctxt *Link, s *Symbol, v uint64) int64

func Adduint8 Uses

func Adduint8(ctxt *Link, s *Symbol, v uint8) int64

func Append16b Uses

func Append16b(b []byte, v uint16) []byte

func Append16l Uses

func Append16l(b []byte, v uint16) []byte

func Append32b Uses

func Append32b(b []byte, v uint32) []byte

func Append32l Uses

func Append32l(b []byte, v uint32) []byte

func Append64b Uses

func Append64b(b []byte, v uint64) []byte

func Append64l Uses

func Append64l(b []byte, v uint64) []byte

func Asmbelf Uses

func Asmbelf(ctxt *Link, symo int64)

func Asmbelfsetup Uses

func Asmbelfsetup()

func Asmbmacho Uses

func Asmbmacho(ctxt *Link)

func Asmbpe Uses

func Asmbpe(ctxt *Link)

func Asmelfsym Uses

func Asmelfsym(ctxt *Link)

func Asmplan9sym Uses

func Asmplan9sym(ctxt *Link)

func AtExit Uses

func AtExit(f func())

func Be16 Uses

func Be16(b []byte) uint16

func Be32 Uses

func Be32(b []byte) uint32

func Cflush Uses

func Cflush()

func Codeblk Uses

func Codeblk(ctxt *Link, addr int64, size int64)

func CodeblkPad Uses

func CodeblkPad(ctxt *Link, addr int64, size int64, pad []byte)

func Cput Uses

func Cput(c uint8)

func Cseek Uses

func Cseek(p int64)

func Cwrite Uses

func Cwrite(p []byte)

func Cwritestring Uses

func Cwritestring(s string)

func Datblk Uses

func Datblk(ctxt *Link, addr int64, size int64)
func Domacholink(ctxt *Link) int64

func Dwarfblk Uses

func Dwarfblk(ctxt *Link, addr int64, size int64)

func ELF32_R_INFO Uses

func ELF32_R_INFO(sym uint32, type_ uint32) uint32

func ELF32_R_SYM Uses

func ELF32_R_SYM(info uint32) uint32

func ELF32_R_TYPE Uses

func ELF32_R_TYPE(info uint32) uint32

func ELF32_ST_BIND Uses

func ELF32_ST_BIND(info uint8) uint8

func ELF32_ST_INFO Uses

func ELF32_ST_INFO(bind uint8, type_ uint8) uint8

func ELF32_ST_TYPE Uses

func ELF32_ST_TYPE(info uint8) uint8

func ELF32_ST_VISIBILITY Uses

func ELF32_ST_VISIBILITY(oth uint8) uint8

func ELF64_R_INFO Uses

func ELF64_R_INFO(sym uint32, type_ uint32) uint64

func ELF64_R_SYM Uses

func ELF64_R_SYM(info uint64) uint32

func ELF64_R_TYPE Uses

func ELF64_R_TYPE(info uint64) uint32

func ELF64_ST_BIND Uses

func ELF64_ST_BIND(info uint8) uint8

func ELF64_ST_INFO Uses

func ELF64_ST_INFO(bind uint8, type_ uint8) uint8

func ELF64_ST_TYPE Uses

func ELF64_ST_TYPE(info uint8) uint8

func ELF64_ST_VISIBILITY Uses

func ELF64_ST_VISIBILITY(oth uint8) uint8

func Elfadddynsym Uses

func Elfadddynsym(ctxt *Link, s *Symbol)

func Elfemitreloc Uses

func Elfemitreloc(ctxt *Link)

func Elfinit Uses

func Elfinit(ctxt *Link)

Initialize the global variable that describes the ELF header. It will be updated as we write section and prog headers.

func Elfwritedynent Uses

func Elfwritedynent(ctxt *Link, s *Symbol, tag int, val uint64)

func Elfwritedynentsymplus Uses

func Elfwritedynentsymplus(ctxt *Link, s *Symbol, tag int, t *Symbol, add int64)

func Entryvalue Uses

func Entryvalue(ctxt *Link) int64

func Errorf Uses

func Errorf(s *Symbol, format string, args ...interface{})

Errorf logs an error message.

If more than 20 errors have been printed, exit with an error.

Logging an error means that on exit cmd/link will delete any output file and return a non-zero error code.

func Exit Uses

func Exit(code int)

Exit exits with code after executing all atExitFuncs.

func Exitf Uses

func Exitf(format string, a ...interface{})

Exitf logs an error message then calls Exit(2).

func Le16 Uses

func Le16(b []byte) uint16

func Le32 Uses

func Le32(b []byte) uint32

func Le64 Uses

func Le64(b []byte) uint64

func Lflag Uses

func Lflag(ctxt *Link, arg string)

func LoadObjFile Uses

func LoadObjFile(ctxt *Link, f *bio.Reader, lib *Library, length int64, pn string)

func Lputb Uses

func Lputb(l uint32)

func Lputl Uses

func Lputl(l uint32)

func Machoadddynlib Uses

func Machoadddynlib(lib string)

func Machoemitreloc Uses

func Machoemitreloc(ctxt *Link)

func Machoinit Uses

func Machoinit()

func Main Uses

func Main()

Main is the main entry point for the linker code.

func Peinit Uses

func Peinit(ctxt *Link)

func Rnd Uses

func Rnd(v int64, r int64) int64

func Symaddr Uses

func Symaddr(s *Symbol) int64

func Symgrow Uses

func Symgrow(s *Symbol, siz int64)

func UseRelro Uses

func UseRelro() bool

UseRelro returns whether to make use of "read only relocations" aka relro.

func Vputb Uses

func Vputb(v uint64)

func Vputl Uses

func Vputl(v uint64)

func Wputb Uses

func Wputb(w uint16)

func Wputl Uses

func Wputl(w uint16)

type ArHdr Uses

type ArHdr struct {
    // contains filtered or unexported fields
}

type Arch Uses

type Arch struct {
    Funcalign        int
    Maxalign         int
    Minalign         int
    Dwarfregsp       int
    Dwarfreglr       int
    Linuxdynld       string
    Freebsddynld     string
    Netbsddynld      string
    Openbsddynld     string
    Dragonflydynld   string
    Solarisdynld     string
    Adddynrel        func(*Link, *Symbol, *Reloc) bool
    Archinit         func(*Link)
    Archreloc        func(*Link, *Reloc, *Symbol, *int64) int
    Archrelocvariant func(*Link, *Reloc, *Symbol, int64) int64
    Trampoline       func(*Link, *Reloc, *Symbol)
    Asmb             func(*Link)
    Elfreloc1        func(*Link, *Reloc, int64) int
    Elfsetupplt      func(*Link)
    Gentext          func(*Link)
    Machoreloc1      func(*Symbol, *Reloc, int64) int
    PEreloc1         func(*Symbol, *Reloc, int64) bool
    Wput             func(uint16)
    Lput             func(uint32)
    Vput             func(uint64)
    Append16         func(b []byte, v uint16) []byte
    Append32         func(b []byte, v uint32) []byte
    Append64         func(b []byte, v uint64) []byte

    // TLSIEtoLE converts a TLS Initial Executable relocation to
    // a TLS Local Executable relocation.
    //
    // This is possible when a TLS IE relocation refers to a local
    // symbol in an executable, which is typical when internally
    // linking PIE binaries.
    TLSIEtoLE func(s *Symbol, off, size int)
}

type Attribute Uses

type Attribute int16

Attribute is a set of common symbol attributes.

const (
    AttrDuplicateOK Attribute = 1 << iota
    AttrExternal
    AttrNoSplit
    AttrReachable
    AttrCgoExportDynamic
    AttrCgoExportStatic
    AttrSpecial
    AttrStackCheck
    AttrHidden
    AttrOnList
    AttrLocal
    AttrReflectMethod
    AttrMakeTypelink
)

func (Attribute) CgoExport Uses

func (a Attribute) CgoExport() bool

func (Attribute) CgoExportDynamic Uses

func (a Attribute) CgoExportDynamic() bool

func (Attribute) CgoExportStatic Uses

func (a Attribute) CgoExportStatic() bool

func (Attribute) DuplicateOK Uses

func (a Attribute) DuplicateOK() bool

func (Attribute) External Uses

func (a Attribute) External() bool

func (Attribute) Hidden Uses

func (a Attribute) Hidden() bool

func (Attribute) Local Uses

func (a Attribute) Local() bool
func (a Attribute) MakeTypelink() bool

func (Attribute) NoSplit Uses

func (a Attribute) NoSplit() bool

func (Attribute) OnList Uses

func (a Attribute) OnList() bool

func (Attribute) Reachable Uses

func (a Attribute) Reachable() bool

func (Attribute) ReflectMethod Uses

func (a Attribute) ReflectMethod() bool

func (*Attribute) Set Uses

func (a *Attribute) Set(flag Attribute, value bool)

func (Attribute) Special Uses

func (a Attribute) Special() bool

func (Attribute) StackCheck Uses

func (a Attribute) StackCheck() bool

type Auto Uses

type Auto struct {
    Asym    *Symbol
    Gotype  *Symbol
    Aoffset int32
    Name    int16
}

type BuildMode Uses

type BuildMode uint8

A BuildMode indicates the sort of object we are building.

Possible build modes are the same as those for the -buildmode flag in cmd/go, and are documented in 'go help buildmode'.

const (
    BuildmodeUnset BuildMode = iota
    BuildmodeExe
    BuildmodePIE
    BuildmodeCArchive
    BuildmodeCShared
    BuildmodeShared
    BuildmodePlugin
)

func (*BuildMode) Set Uses

func (mode *BuildMode) Set(s string) error

func (*BuildMode) String Uses

func (mode *BuildMode) String() string

type Dll Uses

type Dll struct {
    // contains filtered or unexported fields
}

type ElfEhdr Uses

type ElfEhdr struct {
    // contains filtered or unexported fields
}

* ELF header.

type ElfHdrBytes Uses

type ElfHdrBytes struct {
    Ident     [16]uint8
    Type      [2]uint8
    Machine   [2]uint8
    Version   [4]uint8
    Entry     [4]uint8
    Phoff     [4]uint8
    Shoff     [4]uint8
    Flags     [4]uint8
    Ehsize    [2]uint8
    Phentsize [2]uint8
    Phnum     [2]uint8
    Shentsize [2]uint8
    Shnum     [2]uint8
    Shstrndx  [2]uint8
}

type ElfHdrBytes64 Uses

type ElfHdrBytes64 struct {
    Ident     [16]uint8
    Type      [2]uint8
    Machine   [2]uint8
    Version   [4]uint8
    Entry     [8]uint8
    Phoff     [8]uint8
    Shoff     [8]uint8
    Flags     [4]uint8
    Ehsize    [2]uint8
    Phentsize [2]uint8
    Phnum     [2]uint8
    Shentsize [2]uint8
    Shnum     [2]uint8
    Shstrndx  [2]uint8
}

type ElfObj Uses

type ElfObj struct {
    // contains filtered or unexported fields
}

type ElfPhdr Uses

type ElfPhdr struct {
    // contains filtered or unexported fields
}

* Program header.

type ElfProgBytes Uses

type ElfProgBytes struct {
}

type ElfProgBytes64 Uses

type ElfProgBytes64 struct {
}

type ElfSect Uses

type ElfSect struct {
    // contains filtered or unexported fields
}

type ElfSectBytes Uses

type ElfSectBytes struct {
    Name    [4]uint8
    Type    [4]uint8
    Flags   [4]uint8
    Addr    [4]uint8
    Off     [4]uint8
    Size    [4]uint8
    Link    [4]uint8
    Info    [4]uint8
    Align   [4]uint8
    Entsize [4]uint8
}

type ElfSectBytes64 Uses

type ElfSectBytes64 struct {
    Name    [4]uint8
    Type    [4]uint8
    Flags   [8]uint8
    Addr    [8]uint8
    Off     [8]uint8
    Size    [8]uint8
    Link    [4]uint8
    Info    [4]uint8
    Align   [8]uint8
    Entsize [8]uint8
}

type ElfShdr Uses

type ElfShdr struct {
    // contains filtered or unexported fields
}

* Section header.

type ElfSym Uses

type ElfSym struct {
    // contains filtered or unexported fields
}

type ElfSymBytes Uses

type ElfSymBytes struct {
    Name  [4]uint8
    Value [4]uint8
    Size  [4]uint8
    Info  uint8
    Other uint8
    Shndx [2]uint8
}

type ElfSymBytes64 Uses

type ElfSymBytes64 struct {
    Name  [4]uint8
    Info  uint8
    Other uint8
    Shndx [2]uint8
    Value [8]uint8
    Size  [8]uint8
}

type Elfaux Uses

type Elfaux struct {
    // contains filtered or unexported fields
}

type Elflib Uses

type Elflib struct {
    // contains filtered or unexported fields
}

type Elfstring Uses

type Elfstring struct {
    // contains filtered or unexported fields
}

type FuncInfo Uses

type FuncInfo struct {
    Args        int32
    Locals      int32
    Autom       []Auto
    Pcsp        Pcdata
    Pcfile      Pcdata
    Pcline      Pcdata
    Pcdata      []Pcdata
    Funcdata    []*Symbol
    Funcdataoff []int64
    File        []*Symbol
}

type GCProg Uses

type GCProg struct {
    // contains filtered or unexported fields
}

func (*GCProg) AddSym Uses

func (p *GCProg) AddSym(s *Symbol)

func (*GCProg) End Uses

func (p *GCProg) End(size int64)

func (*GCProg) Init Uses

func (p *GCProg) Init(ctxt *Link, name string)

type Hostobj Uses

type Hostobj struct {
    // contains filtered or unexported fields
}

type IMAGE_DATA_DIRECTORY Uses

type IMAGE_DATA_DIRECTORY struct {
    VirtualAddress uint32
    Size           uint32
}

type IMAGE_EXPORT_DIRECTORY Uses

type IMAGE_EXPORT_DIRECTORY struct {
    Characteristics       uint32
    TimeDateStamp         uint32
    MajorVersion          uint16
    MinorVersion          uint16
    Name                  uint32
    Base                  uint32
    NumberOfFunctions     uint32
    NumberOfNames         uint32
    AddressOfFunctions    uint32
    AddressOfNames        uint32
    AddressOfNameOrdinals uint32
}

type IMAGE_FILE_HEADER Uses

type IMAGE_FILE_HEADER struct {
    Machine              uint16
    NumberOfSections     uint16
    TimeDateStamp        uint32
    PointerToSymbolTable uint32
    NumberOfSymbols      uint32
    SizeOfOptionalHeader uint16
    Characteristics      uint16
}

type IMAGE_IMPORT_DESCRIPTOR Uses

type IMAGE_IMPORT_DESCRIPTOR struct {
    OriginalFirstThunk uint32
    TimeDateStamp      uint32
    ForwarderChain     uint32
    Name               uint32
    FirstThunk         uint32
}

type IMAGE_OPTIONAL_HEADER Uses

type IMAGE_OPTIONAL_HEADER struct {
    Magic                       uint16
    MajorLinkerVersion          uint8
    MinorLinkerVersion          uint8
    SizeOfCode                  uint32
    SizeOfInitializedData       uint32
    SizeOfUninitializedData     uint32
    AddressOfEntryPoint         uint32
    BaseOfCode                  uint32
    BaseOfData                  uint32
    ImageBase                   uint32
    SectionAlignment            uint32
    FileAlignment               uint32
    MajorOperatingSystemVersion uint16
    MinorOperatingSystemVersion uint16
    MajorImageVersion           uint16
    MinorImageVersion           uint16
    MajorSubsystemVersion       uint16
    MinorSubsystemVersion       uint16
    Win32VersionValue           uint32
    SizeOfImage                 uint32
    SizeOfHeaders               uint32
    CheckSum                    uint32
    Subsystem                   uint16
    DllCharacteristics          uint16
    SizeOfStackReserve          uint32
    SizeOfStackCommit           uint32
    SizeOfHeapReserve           uint32
    SizeOfHeapCommit            uint32
    LoaderFlags                 uint32
    NumberOfRvaAndSizes         uint32
    DataDirectory               [16]IMAGE_DATA_DIRECTORY
}

type IMAGE_SECTION_HEADER Uses

type IMAGE_SECTION_HEADER struct {
    Name                 [8]uint8
    VirtualSize          uint32
    VirtualAddress       uint32
    SizeOfRawData        uint32
    PointerToRawData     uint32
    PointerToRelocations uint32
    PointerToLineNumbers uint32
    NumberOfRelocations  uint16
    NumberOfLineNumbers  uint16
    Characteristics      uint32
}

type Imp Uses

type Imp struct {
    // contains filtered or unexported fields
}

type Library Uses

type Library struct {
    Objref string
    Srcref string
    File   string
    Pkg    string
    Shlib  string
    // contains filtered or unexported fields
}

func (Library) String Uses

func (l Library) String() string
type Link struct {
    Syms *Symbols

    Arch      *sys.Arch
    Debugvlog int
    Bso       *bufio.Writer

    Loaded bool // set after all inputs have been loaded as symbols

    Tlsg       *Symbol
    Libdir     []string
    Library    []*Library
    Shlibs     []Shlib
    Tlsoffset  int
    Textp      []*Symbol
    Filesyms   []*Symbol
    Moduledata *Symbol
    // contains filtered or unexported fields
}

Link holds the context for writing object code from a compiler or for reading that input into the linker.

func (*Link) AddTramp Uses

func (ctxt *Link) AddTramp(s *Symbol)

add a trampoline with symbol s (to be laid down after the current function)

func (*Link) DynlinkingGo Uses

func (ctxt *Link) DynlinkingGo() bool

DynlinkingGo returns whether we are producing Go code that can live in separate shared libraries linked together at runtime.

func (*Link) FixedFrameSize Uses

func (ctxt *Link) FixedFrameSize() int64

The smallest possible offset from the hardware stack pointer to a local variable on the stack. Architectures that use a link register save its value on the stack in the function prologue and so always have a pointer between the hardware stack pointer and the local variable area.

func (*Link) Logf Uses

func (l *Link) Logf(format string, args ...interface{})

type LinkMode Uses

type LinkMode uint8

LinkMode indicates whether an external linker is used for the final link.

const (
    LinkAuto LinkMode = iota
    LinkInternal
    LinkExternal
)

func (*LinkMode) Set Uses

func (mode *LinkMode) Set(s string) error

func (*LinkMode) String Uses

func (mode *LinkMode) String() string

type MachoHdr Uses

type MachoHdr struct {
    // contains filtered or unexported fields
}

type MachoLoad Uses

type MachoLoad struct {
    // contains filtered or unexported fields
}

type MachoSect Uses

type MachoSect struct {
    // contains filtered or unexported fields
}

type MachoSeg Uses

type MachoSeg struct {
    // contains filtered or unexported fields
}

type PE64_IMAGE_OPTIONAL_HEADER Uses

type PE64_IMAGE_OPTIONAL_HEADER struct {
    Magic                       uint16
    MajorLinkerVersion          uint8
    MinorLinkerVersion          uint8
    SizeOfCode                  uint32
    SizeOfInitializedData       uint32
    SizeOfUninitializedData     uint32
    AddressOfEntryPoint         uint32
    BaseOfCode                  uint32
    ImageBase                   uint64
    SectionAlignment            uint32
    FileAlignment               uint32
    MajorOperatingSystemVersion uint16
    MinorOperatingSystemVersion uint16
    MajorImageVersion           uint16
    MinorImageVersion           uint16
    MajorSubsystemVersion       uint16
    MinorSubsystemVersion       uint16
    Win32VersionValue           uint32
    SizeOfImage                 uint32
    SizeOfHeaders               uint32
    CheckSum                    uint32
    Subsystem                   uint16
    DllCharacteristics          uint16
    SizeOfStackReserve          uint64
    SizeOfStackCommit           uint64
    SizeOfHeapReserve           uint64
    SizeOfHeapCommit            uint64
    LoaderFlags                 uint32
    NumberOfRvaAndSizes         uint32
    DataDirectory               [16]IMAGE_DATA_DIRECTORY
}

X64

type Pcdata Uses

type Pcdata struct {
    P []byte
}

type Pciter Uses

type Pciter struct {
    // contains filtered or unexported fields
}

type Pkg Uses

type Pkg struct {
    // contains filtered or unexported fields
}

type Reloc Uses

type Reloc struct {
    Off     int32         // offset to rewrite
    Siz     uint8         // number of bytes to rewrite, 1, 2, or 4
    Done    uint8         // set to 1 when relocation is complete
    Variant RelocVariant  // variation on Type
    Type    obj.RelocType // the relocation type
    Add     int64         // addend
    Xadd    int64         // addend passed to external linker
    Sym     *Symbol       // symbol the relocation addresses
    Xsym    *Symbol       // symbol passed to external linker
}

Reloc is a relocation.

The typical Reloc rewrites part of a symbol at offset Off to address Sym. A Reloc is stored in a slice on the Symbol it rewrites.

Relocations are generated by the compiler as the type cmd/internal/obj.Reloc, which is encoded into the object file wire format and decoded by the linker into this type. A separate type is used to hold linker-specific state about the relocation.

Some relocations are created by cmd/link.

func Addrel Uses

func Addrel(s *Symbol) *Reloc

type RelocVariant Uses

type RelocVariant uint8

RelocVariant is a linker-internal variation on a relocation.

const (
    RV_NONE RelocVariant = iota
    RV_POWER_LO
    RV_POWER_HI
    RV_POWER_HA
    RV_POWER_DS

    // RV_390_DBL is a s390x-specific relocation variant that indicates that
    // the value to be placed into the relocatable field should first be
    // divided by 2.
    RV_390_DBL

    RV_CHECK_OVERFLOW RelocVariant = 1 << 7
    RV_TYPE_MASK      RelocVariant = RV_CHECK_OVERFLOW - 1
)

type Rpath Uses

type Rpath struct {
    // contains filtered or unexported fields
}

func (*Rpath) Set Uses

func (r *Rpath) Set(val string) error

func (*Rpath) String Uses

func (r *Rpath) String() string

type Section Uses

type Section struct {
    Rwx     uint8
    Extnum  int16
    Align   int32
    Name    string
    Vaddr   uint64
    Length  uint64
    Next    *Section
    Seg     *Segment
    Elfsect *ElfShdr
    Reloff  uint64
    Rellen  uint64
}

type Segment Uses

type Segment struct {
    Rwx     uint8  // permission as usual unix bits (5 = r-x etc)
    Vaddr   uint64 // virtual address
    Length  uint64 // length in memory
    Fileoff uint64 // file offset
    Filelen uint64 // length on disk
    Sect    *Section
}
var (
    Segtext      Segment
    Segrodata    Segment
    Segrelrodata Segment
    Segdata      Segment
    Segdwarf     Segment
)

type Shlib Uses

type Shlib struct {
    Path string
    Hash []byte
    Deps []string
    File *elf.File
    // contains filtered or unexported fields
}

type Symbol Uses

type Symbol struct {
    Name        string
    Extname     string
    Type        obj.SymKind
    Version     int16
    Attr        Attribute
    Localentry  uint8
    Dynid       int32
    Plt         int32
    Got         int32
    Align       int32
    Elfsym      int32
    LocalElfsym int32
    Value       int64
    Size        int64
    // ElfType is set for symbols read from shared libraries by ldshlibsyms. It
    // is not set for symbols defined by the packages being linked or by symbols
    // read by ldelf (and so is left as elf.STT_NOTYPE).
    ElfType     elf.SymType
    Sub         *Symbol
    Outer       *Symbol
    Gotype      *Symbol
    Reachparent *Symbol
    File        string
    Dynimplib   string
    Dynimpvers  string
    Sect        *Section
    FuncInfo    *FuncInfo
    // P contains the raw symbol data.
    P   []byte
    R   []Reloc
}

Symbol is an entry in the symbol table.

func (*Symbol) ElfsymForReloc Uses

func (s *Symbol) ElfsymForReloc() int32

func (*Symbol) String Uses

func (s *Symbol) String() string

type SymbolType Uses

type SymbolType int8
const (
    TextSym      SymbolType = 'T'
    DataSym                 = 'D'
    BSSSym                  = 'B'
    UndefinedSym            = 'U'
    TLSSym                  = 't'
    FileSym                 = 'f'
    FrameSym                = 'm'
    ParamSym                = 'p'
    AutoSym                 = 'a'
)

type Symbols Uses

type Symbols struct {
    Allsym []*Symbol
    // contains filtered or unexported fields
}

func (*Symbols) IncVersion Uses

func (syms *Symbols) IncVersion() int

Allocate a new version (i.e. symbol namespace).

func (*Symbols) Lookup Uses

func (syms *Symbols) Lookup(name string, v int) *Symbol

Look up the symbol with the given name and version, creating the symbol if it is not found.

func (*Symbols) ROLookup Uses

func (syms *Symbols) ROLookup(name string, v int) *Symbol

Look up the symbol with the given name and version, returning nil if it is not found.

Package ld imports 34 packages (graph) and is imported by 10 packages. Updated 2017-02-27. Refresh now. Tools for package owners.

The go get command cannot install this package because of the following issues: