ld

package

v0.0.0-...-9ea5951 Latest Latest Go to latest Published: Nov 16, 2020 License: BSD-3-Clause Imports: 43 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/veezhang/go1.12.9-annotated

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func Adddynsym(ctxt *Link, s *sym.Symbol)
func Addstring(s *sym.Symbol, str string) int64
func Asmbelf(ctxt *Link, symo int64)
func Asmbelfsetup()
func Asmbmacho(ctxt *Link)
func Asmbpe(ctxt *Link)
func Asmbxcoff(ctxt *Link, fileoff int64)
func Asmelfsym(ctxt *Link)
func Asmplan9sym(ctxt *Link)
func AtExit(f func())
func Codeblk(ctxt *Link, addr int64, size int64)
func CodeblkPad(ctxt *Link, addr int64, size int64, pad []byte)
func Cputime() float64
func Datblk(ctxt *Link, addr int64, size int64)
func Domacholink(ctxt *Link) int64
func Dwarfblk(ctxt *Link, addr int64, size int64)
func ELF32_R_INFO(sym uint32, type_ uint32) uint32
func ELF32_R_SYM(info uint32) uint32
func ELF32_R_TYPE(info uint32) uint32
func ELF32_ST_BIND(info uint8) uint8
func ELF32_ST_INFO(bind uint8, type_ uint8) uint8
func ELF32_ST_TYPE(info uint8) uint8
func ELF32_ST_VISIBILITY(oth uint8) uint8
func ELF64_R_INFO(sym uint32, type_ uint32) uint64
func ELF64_R_SYM(info uint64) uint32
func ELF64_R_TYPE(info uint64) uint32
func ELF64_ST_BIND(info uint8) uint8
func ELF64_ST_INFO(bind uint8, type_ uint8) uint8
func ELF64_ST_TYPE(info uint8) uint8
func ELF64_ST_VISIBILITY(oth uint8) uint8
func Elfemitreloc(ctxt *Link)
func Elfinit(ctxt *Link)
func Elfwritedynent(ctxt *Link, s *sym.Symbol, tag int, val uint64)
func Elfwritedynentsymplus(ctxt *Link, s *sym.Symbol, tag int, t *sym.Symbol, add int64)
func Entryvalue(ctxt *Link) int64
func Errorf(s *sym.Symbol, format string, args ...interface{})
func Exit(code int)
func Exitf(format string, a ...interface{})
func Lflag(ctxt *Link, arg string)
func Loaderblk(ctxt *Link, off uint64)
func Machoemitreloc(ctxt *Link)
func Main(arch *sys.Arch, theArch Arch)
func Peinit(ctxt *Link)
func Rnd(v int64, r int64) int64
func Symaddr(s *sym.Symbol) int64
func Xcoffadddynrel(ctxt *Link, s *sym.Symbol, r *sym.Reloc) bool
func Xcoffinit(ctxt *Link)
type ArHdr
type Arch
type BuildMode
- func (mode *BuildMode) Set(s string) error
- func (mode *BuildMode) String() string
type Dll
type ElfEhdr
type ElfPhdr
type ElfShdr
type Elfaux
type Elflib
type Elfstring
type GCProg
- func (p *GCProg) AddSym(s *sym.Symbol)
- func (p *GCProg) End(size int64)
- func (p *GCProg) Init(ctxt *Link, name string)
type Hostobj
type IMAGE_EXPORT_DIRECTORY
type IMAGE_IMPORT_DESCRIPTOR
type Imp
type Link
- func (ctxt *Link) AddTramp(s *sym.Symbol)
- func (ctxt *Link) CanUsePlugins() bool
- func (ctxt *Link) DynlinkingGo() bool
- func (ctxt *Link) ErrorUnresolved(s *sym.Symbol, r *sym.Reloc)
- func (ctxt *Link) FixedFrameSize() int64
- func (ctxt *Link) Logf(format string, args ...interface{})
- func (ctxt *Link) UseRelro() bool
type LinkMode
- func (mode *LinkMode) Set(s string) error
- func (mode *LinkMode) String() string
type MachoHdr
type MachoLoad
type MachoSect
type MachoSeg
type OutBuf
- func (out *OutBuf) Flush()
- func (out *OutBuf) Offset() int64
- func (out *OutBuf) SeekSet(p int64)
- func (out *OutBuf) Write(v []byte) (int, error)
- func (out *OutBuf) Write16(v uint16)
- func (out *OutBuf) Write32(v uint32)
- func (out *OutBuf) Write32b(v uint32)
- func (out *OutBuf) Write64(v uint64)
- func (out *OutBuf) Write64b(v uint64)
- func (out *OutBuf) Write8(v uint8)
- func (out *OutBuf) WriteByte(v byte) error
- func (out *OutBuf) WriteString(s string)
- func (out *OutBuf) WriteStringN(s string, n int)
- func (out *OutBuf) WriteStringPad(s string, n int, pad []byte)
type Pciter
type Pkg
type Rpath
- func (r *Rpath) Set(val string) error
- func (r *Rpath) String() string
type Shlib
type SymbolType
type XcoffAoutHdr64
type XcoffAuxCSect64
type XcoffAuxFcn64
type XcoffAuxFile64
type XcoffFileHdr64
type XcoffLdHdr64
type XcoffLdImportFile64
type XcoffLdRel64
type XcoffLdStr64
type XcoffLdSym64
type XcoffScnHdr64
type XcoffSymEnt64

Constants ¶

View Source

const (
	SARMAG  = 8
	SAR_HDR = 16 + 44
)

View Source

const (
	MaxKeySize = 128
	MaxValSize = 128
	BucketSize = 8
)

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

View Source

const (
	LINE_BASE   = -4
	LINE_RANGE  = 10
	PC_RANGE    = (255 - OPCODE_BASE) / LINE_RANGE
	OPCODE_BASE = 11
)

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

View Source

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
)

View Source

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

View Source

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)

View Source

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

OpenBSD Signature

View Source

const (
	ELF_NOTE_BUILDINFO_NAMESZ = 4
	ELF_NOTE_BUILDINFO_TAG    = 3
)

Build info note

View Source

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

Go specific notes

View Source

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
)

View Source

const (
	MH_MAGIC    = 0xfeedface
	MH_MAGIC_64 = 0xfeedfacf

	MH_OBJECT  = 0x1
	MH_EXECUTE = 0x2

	MH_NOUNDEFS = 0x1
)

View Source

const (
	LC_SEGMENT                  = 0x1
	LC_SYMTAB                   = 0x2
	LC_SYMSEG                   = 0x3
	LC_THREAD                   = 0x4
	LC_UNIXTHREAD               = 0x5
	LC_LOADFVMLIB               = 0x6
	LC_IDFVMLIB                 = 0x7
	LC_IDENT                    = 0x8
	LC_FVMFILE                  = 0x9
	LC_PREPAGE                  = 0xa
	LC_DYSYMTAB                 = 0xb
	LC_LOAD_DYLIB               = 0xc
	LC_ID_DYLIB                 = 0xd
	LC_LOAD_DYLINKER            = 0xe
	LC_ID_DYLINKER              = 0xf
	LC_PREBOUND_DYLIB           = 0x10
	LC_ROUTINES                 = 0x11
	LC_SUB_FRAMEWORK            = 0x12
	LC_SUB_UMBRELLA             = 0x13
	LC_SUB_CLIENT               = 0x14
	LC_SUB_LIBRARY              = 0x15
	LC_TWOLEVEL_HINTS           = 0x16
	LC_PREBIND_CKSUM            = 0x17
	LC_LOAD_WEAK_DYLIB          = 0x18
	LC_SEGMENT_64               = 0x19
	LC_ROUTINES_64              = 0x1a
	LC_UUID                     = 0x1b
	LC_RPATH                    = 0x8000001c
	LC_CODE_SIGNATURE           = 0x1d
	LC_SEGMENT_SPLIT_INFO       = 0x1e
	LC_REEXPORT_DYLIB           = 0x8000001f
	LC_LAZY_LOAD_DYLIB          = 0x20
	LC_ENCRYPTION_INFO          = 0x21
	LC_DYLD_INFO                = 0x22
	LC_DYLD_INFO_ONLY           = 0x80000022
	LC_LOAD_UPWARD_DYLIB        = 0x80000023
	LC_VERSION_MIN_MACOSX       = 0x24
	LC_VERSION_MIN_IPHONEOS     = 0x25
	LC_FUNCTION_STARTS          = 0x26
	LC_DYLD_ENVIRONMENT         = 0x27
	LC_MAIN                     = 0x80000028
	LC_DATA_IN_CODE             = 0x29
	LC_SOURCE_VERSION           = 0x2A
	LC_DYLIB_CODE_SIGN_DRS      = 0x2B
	LC_ENCRYPTION_INFO_64       = 0x2C
	LC_LINKER_OPTION            = 0x2D
	LC_LINKER_OPTIMIZATION_HINT = 0x2E
	LC_VERSION_MIN_TVOS         = 0x2F
	LC_VERSION_MIN_WATCHOS      = 0x30
	LC_VERSION_NOTE             = 0x31
	LC_BUILD_VERSION            = 0x32
)

View Source

const (
	S_REGULAR                  = 0x0
	S_ZEROFILL                 = 0x1
	S_NON_LAZY_SYMBOL_POINTERS = 0x6
	S_SYMBOL_STUBS             = 0x8
	S_MOD_INIT_FUNC_POINTERS   = 0x9
	S_ATTR_PURE_INSTRUCTIONS   = 0x80000000
	S_ATTR_DEBUG               = 0x02000000
	S_ATTR_SOME_INSTRUCTIONS   = 0x00000400
)

View Source

const (
	SymKindLocal = 0 + iota
	SymKindExtdef
	SymKindUndef
	NumSymKind
)

View Source

const (
	BUCKETSIZE    = 256 * MINFUNC
	SUBBUCKETS    = 16
	SUBBUCKETSIZE = BUCKETSIZE / SUBBUCKETS
	NOIDX         = 0x7fffffff
)

View Source

const (
	IMAGE_FILE_MACHINE_I386               = 0x14c
	IMAGE_FILE_MACHINE_AMD64              = 0x8664
	IMAGE_FILE_MACHINE_ARM                = 0x1c0
	IMAGE_FILE_MACHINE_ARMNT              = 0x1c4
	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
	IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE = 0x0040
	IMAGE_DLLCHARACTERISTICS_NX_COMPAT    = 0x0100
)

View Source

const (
	// TODO: the Microsoft doco says IMAGE_SYM_DTYPE_ARRAY is 3 and IMAGE_SYM_DTYPE_FUNCTION is 2
	IMAGE_SYM_TYPE_NULL      = 0
	IMAGE_SYM_TYPE_STRUCT    = 8
	IMAGE_SYM_DTYPE_FUNCTION = 0x20
	IMAGE_SYM_DTYPE_ARRAY    = 0x30
	IMAGE_SYM_CLASS_EXTERNAL = 2
	IMAGE_SYM_CLASS_STATIC   = 3

	IMAGE_REL_I386_DIR32  = 0x0006
	IMAGE_REL_I386_SECREL = 0x000B
	IMAGE_REL_I386_REL32  = 0x0014

	IMAGE_REL_AMD64_ADDR64 = 0x0001
	IMAGE_REL_AMD64_ADDR32 = 0x0002
	IMAGE_REL_AMD64_REL32  = 0x0004
	IMAGE_REL_AMD64_SECREL = 0x000B

	IMAGE_REL_ARM_ABSOLUTE = 0x0000
	IMAGE_REL_ARM_ADDR32   = 0x0001
	IMAGE_REL_ARM_ADDR32NB = 0x0002
	IMAGE_REL_ARM_BRANCH24 = 0x0003
	IMAGE_REL_ARM_BRANCH11 = 0x0004
	IMAGE_REL_ARM_SECREL   = 0x000F

	IMAGE_REL_BASED_HIGHLOW = 3
)

TODO(crawshaw): add these constants to debug/pe.

View Source

const (
	// Total amount of space to reserve at the start of the file
	// for File Header, Auxiliary Header, and Section Headers.
	// May waste some.
	XCOFFHDRRESERVE       = FILHSZ_64 + AOUTHSZ_EXEC64 + SCNHSZ_64*23
	XCOFFSECTALIGN  int64 = 32 // base on dump -o

	// XCOFF binaries should normally have all its sections position-independent.
	// However, this is not yet possible for .text because of some R_ADDR relocations
	// inside RODATA symbols.
	// .data and .bss are position-independent so their address start inside a unreachable
	// segment during execution to force segfault if something is wrong.
	XCOFFTEXTBASE = 0x100000000 // Start of text address
	XCOFFDATABASE = 0x200000000 // Start of data address
)

View Source

const (
	F_RELFLG    = 0x0001
	F_EXEC      = 0x0002
	F_LNNO      = 0x0004
	F_FDPR_PROF = 0x0010
	F_FDPR_OPTI = 0x0020
	F_DSA       = 0x0040
	F_VARPG     = 0x0100
	F_DYNLOAD   = 0x1000
	F_SHROBJ    = 0x2000
	F_LOADONLY  = 0x4000
)

Flags that describe the type of the object file.

View Source

const (
	STYP_DWARF  = 0x0010
	STYP_TEXT   = 0x0020
	STYP_DATA   = 0x0040
	STYP_BSS    = 0x0080
	STYP_EXCEPT = 0x0100
	STYP_INFO   = 0x0200
	STYP_TDATA  = 0x0400
	STYP_TBSS   = 0x0800
	STYP_LOADER = 0x1000
	STYP_DEBUG  = 0x2000
	STYP_TYPCHK = 0x4000
	STYP_OVRFLO = 0x8000
)

Flags defining the section type.

View Source

const (
	SSUBTYP_DWINFO  = 0x10000 // DWARF info section
	SSUBTYP_DWLINE  = 0x20000 // DWARF line-number section
	SSUBTYP_DWPBNMS = 0x30000 // DWARF public names section
	SSUBTYP_DWPBTYP = 0x40000 // DWARF public types section
	SSUBTYP_DWARNGE = 0x50000 // DWARF aranges section
	SSUBTYP_DWABREV = 0x60000 // DWARF abbreviation section
	SSUBTYP_DWSTR   = 0x70000 // DWARF strings section
	SSUBTYP_DWRNGES = 0x80000 // DWARF ranges section
	SSUBTYP_DWLOC   = 0x90000 // DWARF location lists section
	SSUBTYP_DWFRAME = 0xA0000 // DWARF frames section
	SSUBTYP_DWMAC   = 0xB0000 // DWARF macros section
)

View Source

const (
	FILHSZ_32      = 20
	FILHSZ_64      = 24
	AOUTHSZ_EXEC32 = 72
	AOUTHSZ_EXEC64 = 120
	SCNHSZ_32      = 40
	SCNHSZ_64      = 72
	LDHDRSZ_32     = 32
	LDHDRSZ_64     = 56
	LDSYMSZ_64     = 24
)

Headers size

View Source

const (
	// Nscnum
	N_DEBUG = -2
	N_ABS   = -1
	N_UNDEF = 0

	//Ntype
	SYM_V_INTERNAL  = 0x1000
	SYM_V_HIDDEN    = 0x2000
	SYM_V_PROTECTED = 0x3000
	SYM_V_EXPORTED  = 0x4000
	SYM_TYPE_FUNC   = 0x0020 // is function
)

View Source

const (
	C_NULL    = 0   // Symbol table entry marked for deletion
	C_EXT     = 2   // External symbol
	C_STAT    = 3   // Static symbol
	C_BLOCK   = 100 // Beginning or end of inner block
	C_FCN     = 101 // Beginning or end of function
	C_FILE    = 103 // Source file name and compiler information
	C_HIDEXT  = 107 // Unnamed external symbol
	C_BINCL   = 108 // Beginning of include file
	C_EINCL   = 109 // End of include file
	C_WEAKEXT = 111 // Weak external symbol
	C_DWARF   = 112 // DWARF symbol
	C_GSYM    = 128 // Global variable
	C_LSYM    = 129 // Automatic variable allocated on stack
	C_PSYM    = 130 // Argument to subroutine allocated on stack
	C_RSYM    = 131 // Register variable
	C_RPSYM   = 132 // Argument to function or procedure stored in register
	C_STSYM   = 133 // Statically allocated symbol
	C_BCOMM   = 135 // Beginning of common block
	C_ECOML   = 136 // Local member of common block
	C_ECOMM   = 137 // End of common block
	C_DECL    = 140 // Declaration of object
	C_ENTRY   = 141 // Alternate entry
	C_FUN     = 142 // Function or procedure
	C_BSTAT   = 143 // Beginning of static block
	C_ESTAT   = 144 // End of static block
	C_GTLS    = 145 // Global thread-local variable
	C_STTLS   = 146 // Static thread-local variable
)

Storage Class.

View Source

const (
	XFT_FN = 0   // Source File Name
	XFT_CT = 1   // Compile Time Stamp
	XFT_CV = 2   // Compiler Version Number
	XFT_CD = 128 // Compiler Defined Information/

)

Xftype field

View Source

const (
	XTY_ER  = 0    // External reference
	XTY_SD  = 1    // Section definition
	XTY_LD  = 2    // Label definition
	XTY_CM  = 3    // Common csect definition
	XTY_WK  = 0x8  // Weak symbol
	XTY_EXP = 0x10 // Exported symbol
	XTY_ENT = 0x20 // Entry point symbol
	XTY_IMP = 0x40 // Imported symbol
)

Symbol type field.

View Source

const (
	XMC_PR     = 0  // Program code
	XMC_RO     = 1  // Read-only constant
	XMC_DB     = 2  // Debug dictionary table
	XMC_TC     = 3  // TOC entry
	XMC_UA     = 4  // Unclassified
	XMC_RW     = 5  // Read/Write data
	XMC_GL     = 6  // Global linkage
	XMC_XO     = 7  // Extended operation
	XMC_SV     = 8  // 32-bit supervisor call descriptor
	XMC_BS     = 9  // BSS class
	XMC_DS     = 10 // Function descriptor
	XMC_UC     = 11 // Unnamed FORTRAN common
	XMC_TC0    = 15 // TOC anchor
	XMC_TD     = 16 // Scalar data entry in the TOC
	XMC_SV64   = 17 // 64-bit supervisor call descriptor
	XMC_SV3264 = 18 // Supervisor call descriptor for both 32-bit and 64-bit
	XMC_TL     = 20 // Read/Write thread-local data
	XMC_UL     = 21 // Read/Write thread-local data (.tbss)
	XMC_TE     = 22 // TOC entry
)

Storage-mapping class.

View Source

const (
	ARMAG = "!<arch>\n"
)

View Source

const (
	ARM_MAGIC_TRAMP_NUMBER = 0x5c000003
)

* Relocation types.

View Source

const (
	COMPUNITHEADERSIZE = 4 + 2 + 4 + 1
)

* Walk DWarfDebugInfoEntries, and emit .debug_info

View Source

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.

View Source

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.

View Source

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

View Source

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.

View Source

const (
	PEBASE = 0x00400000
)

View Source

const SYMESZ = 18

View Source

const (
	U64_TOCMAGIC = 0767 // AIX 64-bit XCOFF
)

View Source

const (
	XCOFF_R_POS = 0x00 // A(sym) Positive Relocation
)

Variables ¶

View Source

var (
	Lcsize int32

	Spsize  int32
	Symsize int32
)

View Source

var (
	Funcalign int

	HEADR int32
)

View Source

var (
	Segtext      sym.Segment
	Segrodata    sym.Segment
	Segrelrodata sym.Segment
	Segdata      sym.Segment
	Segdwarf     sym.Segment
)

View Source

var (
	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.

View Source

var (
	// SectionAlignment must be greater than or equal to FileAlignment.
	// The default is the page size for the architecture.
	PESECTALIGN int64 = 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 int64 = 2 << 8
)

View Source

var (
	PESECTHEADR int32
	PEFILEHEADR int32
)

View Source

var ELF_NOTE_BUILDINFO_NAME = []byte("GNU\x00")

View Source

var ELF_NOTE_GO_NAME = []byte("Go\x00\x00")

View Source

var ELF_NOTE_NETBSD_NAME = []byte("NetBSD\x00")

View Source

var ELF_NOTE_OPENBSD_NAME = []byte("OpenBSD\x00")

View Source

var Elfstrdat []byte

View Source

var (
	Nelfsym = 1
)

Functions ¶

func Adddynsym ¶

func Adddynsym(ctxt *Link, s *sym.Symbol)

func Addstring ¶

func Addstring(s *sym.Symbol, str string) int64

func Asmbelf ¶

func Asmbelf(ctxt *Link, symo int64)

func Asmbelfsetup ¶

func Asmbelfsetup()

func Asmbmacho ¶

func Asmbmacho(ctxt *Link)

func Asmbpe ¶

func Asmbpe(ctxt *Link)

func Asmelfsym ¶

func Asmelfsym(ctxt *Link)

func Asmplan9sym ¶

func Asmplan9sym(ctxt *Link)

func AtExit ¶

func AtExit(f func())

func Codeblk ¶

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

func CodeblkPad ¶

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

func Cputime ¶

func Cputime() float64

TODO(josharian): delete. See issue 19865.

func Datblk ¶

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

func Domacholink ¶

func Domacholink(ctxt *Link) int64

func Dwarfblk ¶

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

func ELF32_R_INFO ¶

func ELF32_R_INFO(sym uint32, type_ uint32) uint32

func ELF32_R_SYM ¶

func ELF32_R_SYM(info uint32) uint32

func ELF32_R_TYPE ¶

func ELF32_R_TYPE(info uint32) uint32

func ELF32_ST_BIND ¶

func ELF32_ST_BIND(info uint8) uint8

func ELF32_ST_INFO ¶

func ELF32_ST_INFO(bind uint8, type_ uint8) uint8

func ELF32_ST_TYPE ¶

func ELF32_ST_TYPE(info uint8) uint8

func ELF32_ST_VISIBILITY ¶

func ELF32_ST_VISIBILITY(oth uint8) uint8

func ELF64_R_INFO ¶

func ELF64_R_INFO(sym uint32, type_ uint32) uint64

func ELF64_R_SYM ¶

func ELF64_R_SYM(info uint64) uint32

func ELF64_R_TYPE ¶

func ELF64_R_TYPE(info uint64) uint32

func ELF64_ST_BIND ¶

func ELF64_ST_BIND(info uint8) uint8

func ELF64_ST_INFO ¶

func ELF64_ST_INFO(bind uint8, type_ uint8) uint8

func ELF64_ST_TYPE ¶

func ELF64_ST_TYPE(info uint8) uint8

func ELF64_ST_VISIBILITY ¶

func ELF64_ST_VISIBILITY(oth uint8) uint8

func Elfemitreloc ¶

func Elfemitreloc(ctxt *Link)

func Elfinit ¶

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 ¶

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

func Elfwritedynentsymplus ¶

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

func Entryvalue ¶

func Entryvalue(ctxt *Link) int64

func Errorf ¶

func Errorf(s *sym.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 ¶

func Exit(code int)

Exit exits with code after executing all atExitFuncs.

func Exitf ¶

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

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

func Lflag ¶

func Lflag(ctxt *Link, arg string)

func Loaderblk ¶

func Loaderblk(ctxt *Link, off uint64)

Create loader section and returns its size

func Machoemitreloc ¶

func Machoemitreloc(ctxt *Link)

func Main ¶

func Main(arch *sys.Arch, theArch Arch)

Main is the main entry point for the linker code.

func Peinit ¶

func Peinit(ctxt *Link)

func Rnd ¶

func Rnd(v int64, r int64) int64

func Symaddr ¶

func Symaddr(s *sym.Symbol) int64

func Xcoffadddynrel ¶

func Xcoffadddynrel(ctxt *Link, s *sym.Symbol, r *sym.Reloc) bool

Xcoffadddynrel adds a dynamic relocation in a XCOFF file. This relocation will be made by the loader.

func Xcoffinit ¶

func Xcoffinit(ctxt *Link)

Xcoffinit initialised some internal value and setups already known header information

Types ¶

type ArHdr ¶

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

type Arch ¶

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, *sym.Symbol, *sym.Reloc) bool
	Archinit       func(*Link)
	// Archreloc is an arch-specific hook that assists in
	// relocation processing (invoked by 'relocsym'); it handles
	// target-specific relocation tasks. Here "rel" is the current
	// relocation being examined, "sym" is the symbol containing the
	// chunk of data to which the relocation applies, and "off" is the
	// contents of the to-be-relocated data item (from sym.P). Return
	// value is the appropriately relocated value (to be written back
	// to the same spot in sym.P) and a boolean indicating
	// success/failure (a failing value indicates a fatal error).
	Archreloc func(link *Link, rel *sym.Reloc, sym *sym.Symbol,
		offset int64) (relocatedOffset int64, success bool)
	// Archrelocvariant is a second arch-specific hook used for
	// relocation processing; it handles relocations where r.Type is
	// insufficient to describe the relocation (r.Variant !=
	// sym.RV_NONE). Here "rel" is the relocation being applied, "sym"
	// is the symbol containing the chunk of data to which the
	// relocation applies, and "off" is the contents of the
	// to-be-relocated data item (from sym.P). Return is an updated
	// offset value.
	Archrelocvariant func(link *Link, rel *sym.Reloc, sym *sym.Symbol,
		offset int64) (relocatedOffset int64)
	Trampoline  func(*Link, *sym.Reloc, *sym.Symbol)
	Asmb        func(*Link)
	Elfreloc1   func(*Link, *sym.Reloc, int64) bool
	Elfsetupplt func(*Link)
	Gentext     func(*Link)
	Machoreloc1 func(*sys.Arch, *OutBuf, *sym.Symbol, *sym.Reloc, int64) bool
	PEreloc1    func(*sys.Arch, *OutBuf, *sym.Symbol, *sym.Reloc, int64) bool

	// 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 *sym.Symbol, off, size int)

	// optional override for assignAddress
	AssignAddress func(ctxt *Link, sect *sym.Section, n int, s *sym.Symbol, va uint64, isTramp bool) (*sym.Section, int, uint64)
}

type BuildMode ¶

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 ¶

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

func (*BuildMode) String ¶

func (mode *BuildMode) String() string

type Dll ¶

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

type Elfaux ¶

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

type Elflib ¶

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

type Elfstring ¶

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

type GCProg ¶

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

func (*GCProg) AddSym ¶

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

func (*GCProg) End ¶

func (p *GCProg) End(size int64)

func (*GCProg) Init ¶

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

type Hostobj ¶

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

type IMAGE_EXPORT_DIRECTORY ¶

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_IMPORT_DESCRIPTOR ¶

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

type Imp ¶

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

type Link ¶

type Link struct {
	Out *OutBuf

	Syms *sym.Symbols

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

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

	IsELF    bool
	HeadType objabi.HeadType

	LinkMode  LinkMode
	BuildMode BuildMode

	Tlsg         *sym.Symbol
	Libdir       []string
	Library      []*sym.Library
	LibraryByPkg map[string]*sym.Library
	Shlibs       []Shlib
	Tlsoffset    int
	Textp        []*sym.Symbol
	Filesyms     []*sym.Symbol
	Moduledata   *sym.Symbol

	PackageFile  map[string]string
	PackageShlib map[string]string

	// Used to implement field tracking.
	Reachparent map[*sym.Symbol]*sym.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 ¶

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

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

func (*Link) CanUsePlugins ¶

func (ctxt *Link) CanUsePlugins() bool

CanUsePlugins reports whether a plugins can be used

func (*Link) DynlinkingGo ¶

func (ctxt *Link) DynlinkingGo() bool

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

func (*Link) ErrorUnresolved ¶

func (ctxt *Link) ErrorUnresolved(s *sym.Symbol, r *sym.Reloc)

ErrorUnresolved prints unresolved symbol error for r.Sym that is referenced from s.

func (*Link) FixedFrameSize ¶

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 ¶

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

func (*Link) UseRelro ¶

func (ctxt *Link) UseRelro() bool

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

type LinkMode ¶

type LinkMode uint8

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

const (
	LinkAuto LinkMode = iota
	LinkInternal
	LinkExternal
)

func (*LinkMode) Set ¶

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

func (*LinkMode) String ¶

func (mode *LinkMode) String() string

type MachoHdr ¶

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

type MachoLoad ¶

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

type MachoSect ¶

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

type MachoSeg ¶

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

type OutBuf ¶

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

OutBuf is a buffered file writer.

It is simlar to the Writer in cmd/internal/bio with a few small differences.

First, it tracks the output architecture and uses it to provide endian helpers.

Second, it provides a very cheap offset counter that doesn't require any system calls to read the value.

func (*OutBuf) Flush ¶

func (out *OutBuf) Flush()

func (*OutBuf) Offset ¶

func (out *OutBuf) Offset() int64

func (*OutBuf) SeekSet ¶

func (out *OutBuf) SeekSet(p int64)

func (*OutBuf) Write ¶

func (out *OutBuf) Write(v []byte) (int, error)

Write writes the contents of v to the buffer.

As Write is backed by a bufio.Writer, callers do not have to explicitly handle the returned error as long as Flush is eventually called.

func (*OutBuf) Write16 ¶

func (out *OutBuf) Write16(v uint16)

func (*OutBuf) Write32 ¶

func (out *OutBuf) Write32(v uint32)

func (*OutBuf) Write32b ¶

func (out *OutBuf) Write32b(v uint32)

func (*OutBuf) Write64 ¶

func (out *OutBuf) Write64(v uint64)

func (*OutBuf) Write64b ¶

func (out *OutBuf) Write64b(v uint64)

func (*OutBuf) Write8 ¶

func (out *OutBuf) Write8(v uint8)

func (*OutBuf) WriteByte ¶

func (out *OutBuf) WriteByte(v byte) error

WriteByte is an alias for Write8 to fulfill the io.ByteWriter interface.

func (*OutBuf) WriteString ¶

func (out *OutBuf) WriteString(s string)

func (*OutBuf) WriteStringN ¶

func (out *OutBuf) WriteStringN(s string, n int)

WriteStringN writes the first n bytes of s. If n is larger than len(s) then it is padded with zero bytes.

func (*OutBuf) WriteStringPad ¶

func (out *OutBuf) WriteStringPad(s string, n int, pad []byte)

WriteStringPad writes the first n bytes of s. If n is larger than len(s) then it is padded with the bytes in pad (repeated as needed).

type Pciter ¶

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

type Pkg ¶

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

type Rpath ¶

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

func (*Rpath) Set ¶

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

func (*Rpath) String ¶

func (r *Rpath) String() string

type Shlib ¶

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

type SymbolType ¶

type SymbolType int8

const (
	// see also https://9p.io/magic/man2html/1/nm
	TextSym      SymbolType = 'T'
	DataSym      SymbolType = 'D'
	BSSSym       SymbolType = 'B'
	UndefinedSym SymbolType = 'U'
	TLSSym       SymbolType = 't'
	FrameSym     SymbolType = 'm'
	ParamSym     SymbolType = 'p'
	AutoSym      SymbolType = 'a'

	// Deleted auto (not a real sym, just placeholder for type)
	DeletedAutoSym = 'x'
)

type XcoffAoutHdr64 ¶

type XcoffAoutHdr64 struct {
	Omagic      int16    // Flags - Ignored If Vstamp Is 1
	Ovstamp     int16    // Version
	Odebugger   uint32   // Reserved For Debugger
	Otextstart  uint64   // Virtual Address Of Text
	Odatastart  uint64   // Virtual Address Of Data
	Otoc        uint64   // Toc Address
	Osnentry    int16    // Section Number For Entry Point
	Osntext     int16    // Section Number For Text
	Osndata     int16    // Section Number For Data
	Osntoc      int16    // Section Number For Toc
	Osnloader   int16    // Section Number For Loader
	Osnbss      int16    // Section Number For Bss
	Oalgntext   int16    // Max Text Alignment
	Oalgndata   int16    // Max Data Alignment
	Omodtype    [2]byte  // Module Type Field
	Ocpuflag    uint8    // Bit Flags - Cputypes Of Objects
	Ocputype    uint8    // Reserved for CPU type
	Otextpsize  uint8    // Requested text page size
	Odatapsize  uint8    // Requested data page size
	Ostackpsize uint8    // Requested stack page size
	Oflags      uint8    // Flags And TLS Alignment
	Otsize      uint64   // Text Size In Bytes
	Odsize      uint64   // Data Size In Bytes
	Obsize      uint64   // Bss Size In Bytes
	Oentry      uint64   // Entry Point Address
	Omaxstack   uint64   // Max Stack Size Allowed
	Omaxdata    uint64   // Max Data Size Allowed
	Osntdata    int16    // Section Number For Tdata Section
	Osntbss     int16    // Section Number For Tbss Section
	Ox64flags   uint16   // Additional Flags For 64-Bit Objects
	Oresv3a     int16    // Reserved
	Oresv3      [2]int32 // Reserved

}

Auxiliary Header

type XcoffAuxCSect64 ¶

type XcoffAuxCSect64 struct {
	Xscnlenlo uint32 // Lower 4 bytes of length or symbol table index
	Xparmhash uint32 // Offset of parameter type-check string
	Xsnhash   uint16 // .typchk section number
	Xsmtyp    uint8  // Symbol alignment and type
	Xsmclas   uint8  // Storage-mapping class
	Xscnlenhi uint32 // Upper 4 bytes of length or symbol table index
	Xpad      uint8  // Unused
	Xauxtype  uint8  // Type of auxiliary entry
}

csect Auxiliary Entry.

type XcoffAuxFcn64 ¶

type XcoffAuxFcn64 struct {
	Xlnnoptr uint64 // File pointer to line number
	Xfsize   uint32 // Size of function in bytes
	Xendndx  uint32 // Symbol table index of next entry
	Xpad     uint8  // Unused
	Xauxtype uint8  // Type of auxiliary entry
}

Function Auxiliary Entry

type XcoffAuxFile64 ¶

type XcoffAuxFile64 struct {
	Xfname   [8]byte // Name or offset inside string table
	Xftype   uint8   // Source file string type
	Xauxtype uint8   // Type of auxiliary entry
}

File Auxiliary Entry

type XcoffFileHdr64 ¶

type XcoffFileHdr64 struct {
	Fmagic   uint16 // Target machine
	Fnscns   uint16 // Number of sections
	Ftimedat int32  // Time and date of file creation
	Fsymptr  uint64 // Byte offset to symbol table start
	Fopthdr  uint16 // Number of bytes in optional header
	Fflags   uint16 // Flags
	Fnsyms   int32  // Number of entries in symbol table
}

File Header

type XcoffLdHdr64 ¶

type XcoffLdHdr64 struct {
	Lversion int32  // Loader section version number
	Lnsyms   int32  // Number of symbol table entries
	Lnreloc  int32  // Number of relocation table entries
	Listlen  uint32 // Length of import file ID string table
	Lnimpid  int32  // Number of import file IDs
	Lstlen   uint32 // Length of string table
	Limpoff  uint64 // Offset to start of import file IDs
	Lstoff   uint64 // Offset to start of string table
	Lsymoff  uint64 // Offset to start of symbol table
	Lrldoff  uint64 // Offset to start of relocation entries
}

Loader Header

type XcoffLdImportFile64 ¶

type XcoffLdImportFile64 struct {
	Limpidpath string
	Limpidbase string
	Limpidmem  string
}

type XcoffLdRel64 ¶

type XcoffLdRel64 struct {
	Lvaddr  uint64 // Address Field
	Lrtype  uint16 // Relocation Size and Type
	Lrsecnm int16  // Section Number being relocated
	Lsymndx int32  // Loader-Section symbol table index
}

type XcoffLdStr64 ¶

type XcoffLdStr64 struct {
	// contains filtered or unexported fields
}

type XcoffLdSym64 ¶

type XcoffLdSym64 struct {
	Lvalue  uint64 // Address field
	Loffset uint32 // Byte offset into string table of symbol name
	Lscnum  int16  // Section number containing symbol
	Lsmtype int8   // Symbol type, export, import flags
	Lsmclas int8   // Symbol storage class
	Lifile  int32  // Import file ID; ordinal of import file IDs
	Lparm   uint32 // Parameter type-check field
}

Loader Symbol

type XcoffScnHdr64 ¶

type XcoffScnHdr64 struct {
	Sname    [8]byte // Section Name
	Spaddr   uint64  // Physical Address
	Svaddr   uint64  // Virtual Address
	Ssize    uint64  // Section Size
	Sscnptr  uint64  // File Offset To Raw Data
	Srelptr  uint64  // File Offset To Relocation
	Slnnoptr uint64  // File Offset To Line Numbers
	Snreloc  uint32  // Number Of Relocation Entries
	Snlnno   uint32  // Number Of Line Number Entries
	Sflags   uint32  // flags
}

Section Header

type XcoffSymEnt64 ¶

type XcoffSymEnt64 struct {
	Nvalue  uint64 // Symbol value
	Noffset uint32 // Offset of the name in string table or .debug section
	Nscnum  int16  // Section number of symbol
	Ntype   uint16 // Basic and derived type specification
	Nsclass uint8  // Storage class of symbol
	Nnumaux int8   // Number of auxiliary entries
}

Symbol Table Entry

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL

Documentation ¶

Index ¶

Constants ¶

Variables ¶

Functions ¶

func Adddynsym ¶

func Addstring ¶

func Asmbelf ¶

func Asmbelfsetup ¶

func Asmbmacho ¶

func Asmbpe ¶

func Asmbxcoff ¶

func Asmelfsym ¶

func Asmplan9sym ¶

func AtExit ¶

func Codeblk ¶

func CodeblkPad ¶

func Cputime ¶

func Datblk ¶

func Domacholink ¶

func Dwarfblk ¶

func ELF32_R_INFO ¶

func ELF32_R_SYM ¶

func ELF32_R_TYPE ¶

func ELF32_ST_BIND ¶

func ELF32_ST_INFO ¶

func ELF32_ST_TYPE ¶

func ELF32_ST_VISIBILITY ¶

func ELF64_R_INFO ¶

func ELF64_R_SYM ¶

func ELF64_R_TYPE ¶

func ELF64_ST_BIND ¶

func ELF64_ST_INFO ¶

func ELF64_ST_TYPE ¶

func ELF64_ST_VISIBILITY ¶

func Elfemitreloc ¶

func Elfinit ¶

func Elfwritedynent ¶

func Elfwritedynentsymplus ¶

func Entryvalue ¶

func Errorf ¶

func Exit ¶

func Exitf ¶

func Lflag ¶

func Loaderblk ¶

func Machoemitreloc ¶

func Main ¶

func Peinit ¶

func Rnd ¶

func Symaddr ¶

func Xcoffadddynrel ¶

func Xcoffinit ¶

Types ¶

type ArHdr ¶

type Arch ¶

type BuildMode ¶

func (*BuildMode) Set ¶

func (*BuildMode) String ¶

type Dll ¶

type ElfEhdr ¶

type ElfPhdr ¶

type ElfShdr ¶

type Elfaux ¶

type Elflib ¶

type Elfstring ¶

type GCProg ¶

func (*GCProg) AddSym ¶

func (*GCProg) End ¶

func (*GCProg) Init ¶

type Hostobj ¶

type IMAGE_EXPORT_DIRECTORY ¶

type IMAGE_IMPORT_DESCRIPTOR ¶

type Imp ¶

type Link ¶

func (*Link) AddTramp ¶

func (*Link) CanUsePlugins ¶

func (*Link) DynlinkingGo ¶

func (*Link) ErrorUnresolved ¶

func (*Link) FixedFrameSize ¶

func (*Link) Logf ¶