Auto.name
const (
A_AUTO = 1 + iota
A_PARAM
A_DELETED_AUTO
)
const (
PCDATA_StackMapIndex = 0
PCDATA_InlTreeIndex = 1
FUNCDATA_ArgsPointerMaps = 0
FUNCDATA_LocalsPointerMaps = 1
FUNCDATA_InlTree = 2
// ArgsSizeUnknown is set in Func.argsize to mark all functions
// whose argument size is unknown (C vararg functions, and
// assembly code without an explicit specification).
// This value is generated by the compiler, assembler, or linker.
ArgsSizeUnknown = -0x80000000
)
const (
STACKSYSTEM = 0
StackSystem = STACKSYSTEM
StackBig = 4096
StackGuard = 880*stackGuardMultiplier + StackSystem
StackSmall = 128
StackLimit = StackGuard - StackSystem - StackSmall
)
const (
KindBool = 1 + iota
KindInt
KindInt8
KindInt16
KindInt32
KindInt64
KindUint
KindUint8
KindUint16
KindUint32
KindUint64
KindUintptr
KindFloat32
KindFloat64
KindComplex64
KindComplex128
KindArray
KindChan
KindFunc
KindInterface
KindMap
KindPtr
KindSlice
KindString
KindStruct
KindUnsafePointer
KindDirectIface = 1 << 5
KindGCProg = 1 << 6
KindNoPointers = 1 << 7
KindMask = (1 << 5) - 1
)
const (
StackPreempt = -1314 // 0xfff...fade
)
var (
GOROOT = envOr("GOROOT", defaultGOROOT)
GOARCH = envOr("GOARCH", defaultGOARCH)
GOOS = envOr("GOOS", defaultGOOS)
GO386 = envOr("GO386", defaultGO386)
GOARM = goarm()
GOMIPS = gomips()
Version = version
)
var (
Fieldtrack_enabled int
Preemptibleloops_enabled int
Clobberdead_enabled int
)
func AbsFile(dir, file, pathPrefix string) string
AbsFile returns the absolute filename for file in the given directory. It also removes a leading pathPrefix, or else rewrites a leading $GOROOT prefix to the literal "$GOROOT". If the resulting path is the empty string, the result is "??".
func AddVersionFlag()
func DefaultExpstring() string
func Expstring() string
func Flagcount(name, usage string, val *int)
func Flagfn1(name, usage string, f func(string))
func Flagparse(usage func())
func Flagprint(fd int)
func Framepointer_enabled(goos, goarch string) bool
func Getgoextlinkenabled() string
func PathToPrefix(s string) string
PathToPrefix converts raw string to the prefix that will be used in the symbol table. All control characters, space, '%' and '"', as well as non-7-bit clean bytes turn into %xx. The period needs escaping only in the last segment of the path, and it makes for happier users if we escape that as little as possible.
func WorkingDir() string
WorkingDir returns the current working directory (or "/???" if the directory cannot be identified), with "/" as separator.
HeadType is the executable header type.
type HeadType uint8
const (
Hunknown HeadType = iota
Hdarwin
Hdragonfly
Hfreebsd
Hlinux
Hnacl
Hnetbsd
Hopenbsd
Hplan9
Hsolaris
Hwindows
)
func (h *HeadType) Set(s string) error
func (h *HeadType) String() string
type RelocType int32
go:generate stringer -type=RelocType
const (
R_ADDR RelocType = 1 + iota
// R_ADDRPOWER relocates a pair of "D-form" instructions (instructions with 16-bit
// immediates in the low half of the instruction word), usually addis followed by
// another add or a load, inserting the "high adjusted" 16 bits of the address of
// the referenced symbol into the immediate field of the first instruction and the
// low 16 bits into that of the second instruction.
R_ADDRPOWER
// R_ADDRARM64 relocates an adrp, add pair to compute the address of the
// referenced symbol.
R_ADDRARM64
// R_ADDRMIPS (only used on mips/mips64) resolves to the low 16 bits of an external
// address, by encoding it into the instruction.
R_ADDRMIPS
// R_ADDROFF resolves to a 32-bit offset from the beginning of the section
// holding the data being relocated to the referenced symbol.
R_ADDROFF
// R_WEAKADDROFF resolves just like R_ADDROFF but is a weak relocation.
// A weak relocation does not make the symbol it refers to reachable,
// and is only honored by the linker if the symbol is in some other way
// reachable.
R_WEAKADDROFF
R_SIZE
R_CALL
R_CALLARM
R_CALLARM64
R_CALLIND
R_CALLPOWER
// R_CALLMIPS (only used on mips64) resolves to non-PC-relative target address
// of a CALL (JAL) instruction, by encoding the address into the instruction.
R_CALLMIPS
R_CONST
R_PCREL
// R_TLS_LE, used on 386, amd64, and ARM, resolves to the offset of the
// thread-local symbol from the thread local base and is used to implement the
// "local exec" model for tls access (r.Sym is not set on intel platforms but is
// set to a TLS symbol -- runtime.tlsg -- in the linker when externally linking).
R_TLS_LE
// R_TLS_IE, used 386, amd64, and ARM resolves to the PC-relative offset to a GOT
// slot containing the offset from the thread-local symbol from the thread local
// base and is used to implemented the "initial exec" model for tls access (r.Sym
// is not set on intel platforms but is set to a TLS symbol -- runtime.tlsg -- in
// the linker when externally linking).
R_TLS_IE
R_GOTOFF
R_PLT0
R_PLT1
R_PLT2
R_USEFIELD
// R_USETYPE resolves to an *rtype, but no relocation is created. The
// linker uses this as a signal that the pointed-to type information
// should be linked into the final binary, even if there are no other
// direct references. (This is used for types reachable by reflection.)
R_USETYPE
// R_METHODOFF resolves to a 32-bit offset from the beginning of the section
// holding the data being relocated to the referenced symbol.
// It is a variant of R_ADDROFF used when linking from the uncommonType of a
// *rtype, and may be set to zero by the linker if it determines the method
// text is unreachable by the linked program.
R_METHODOFF
R_POWER_TOC
R_GOTPCREL
// R_JMPMIPS (only used on mips64) resolves to non-PC-relative target address
// of a JMP instruction, by encoding the address into the instruction.
// The stack nosplit check ignores this since it is not a function call.
R_JMPMIPS
// R_DWARFSECREF resolves to the offset of the symbol from its section.
// Target of relocation must be size 4 (in current implementation).
R_DWARFSECREF
// R_DWARFFILEREF resolves to an index into the DWARF .debug_line
// file table for the specified file symbol. Must be applied to an
// attribute of form DW_FORM_data4.
R_DWARFFILEREF
// Set a MOV[NZ] immediate field to bits [15:0] of the offset from the thread
// local base to the thread local variable defined by the referenced (thread
// local) symbol. Error if the offset does not fit into 16 bits.
R_ARM64_TLS_LE
// Relocates an ADRP; LD64 instruction sequence to load the offset between
// the thread local base and the thread local variable defined by the
// referenced (thread local) symbol from the GOT.
R_ARM64_TLS_IE
// R_ARM64_GOTPCREL relocates an adrp, ld64 pair to compute the address of the GOT
// slot of the referenced symbol.
R_ARM64_GOTPCREL
// R_POWER_TLS_LE is used to implement the "local exec" model for tls
// access. It resolves to the offset of the thread-local symbol from the
// thread pointer (R13) and inserts this value into the low 16 bits of an
// instruction word.
R_POWER_TLS_LE
// R_POWER_TLS_IE is used to implement the "initial exec" model for tls access. It
// relocates a D-form, DS-form instruction sequence like R_ADDRPOWER_DS. It
// inserts to the offset of GOT slot for the thread-local symbol from the TOC (the
// GOT slot is filled by the dynamic linker with the offset of the thread-local
// symbol from the thread pointer (R13)).
R_POWER_TLS_IE
// R_POWER_TLS marks an X-form instruction such as "MOVD 0(R13)(R31*1), g" as
// accessing a particular thread-local symbol. It does not affect code generation
// but is used by the system linker when relaxing "initial exec" model code to
// "local exec" model code.
R_POWER_TLS
// R_ADDRPOWER_DS is similar to R_ADDRPOWER above, but assumes the second
// instruction is a "DS-form" instruction, which has an immediate field occupying
// bits [15:2] of the instruction word. Bits [15:2] of the address of the
// relocated symbol are inserted into this field; it is an error if the last two
// bits of the address are not 0.
R_ADDRPOWER_DS
// R_ADDRPOWER_PCREL relocates a D-form, DS-form instruction sequence like
// R_ADDRPOWER_DS but inserts the offset of the GOT slot for the referenced symbol
// from the TOC rather than the symbol's address.
R_ADDRPOWER_GOT
// R_ADDRPOWER_PCREL relocates two D-form instructions like R_ADDRPOWER, but
// inserts the displacement from the place being relocated to the address of the
// the relocated symbol instead of just its address.
R_ADDRPOWER_PCREL
// R_ADDRPOWER_TOCREL relocates two D-form instructions like R_ADDRPOWER, but
// inserts the offset from the TOC to the address of the relocated symbol
// rather than the symbol's address.
R_ADDRPOWER_TOCREL
// R_ADDRPOWER_TOCREL relocates a D-form, DS-form instruction sequence like
// R_ADDRPOWER_DS but inserts the offset from the TOC to the address of the the
// relocated symbol rather than the symbol's address.
R_ADDRPOWER_TOCREL_DS
// R_PCRELDBL relocates s390x 2-byte aligned PC-relative addresses.
// TODO(mundaym): remove once variants can be serialized - see issue 14218.
R_PCRELDBL
// R_ADDRMIPSU (only used on mips/mips64) resolves to the sign-adjusted "upper" 16
// bits (bit 16-31) of an external address, by encoding it into the instruction.
R_ADDRMIPSU
// R_ADDRMIPSTLS (only used on mips64) resolves to the low 16 bits of a TLS
// address (offset from thread pointer), by encoding it into the instruction.
R_ADDRMIPSTLS
// R_ADDRCUOFF resolves to a pointer-sized offset from the start of the
// symbol's DWARF compile unit.
R_ADDRCUOFF
)
func (r RelocType) IsDirectJump() bool
IsDirectJump returns whether r is a relocation for a direct jump. A direct jump is a CALL or JMP instruction that takes the target address as immediate. The address is embedded into the instruction, possibly with limited width. An indirect jump is a CALL or JMP instruction that takes the target address in register or memory.
func (i RelocType) String() string
A SymKind describes the kind of memory represented by a symbol.
type SymKind uint8
Defined SymKind values.
TODO(rsc): Give idiomatic Go names. go:generate stringer -type=SymKind
const (
// An otherwise invalid zero value for the type
Sxxx SymKind = iota
// Executable instructions
STEXT
// Read only static data
SRODATA
// Static data that does not contain any pointers
SNOPTRDATA
// Static data
SDATA
// Statically data that is initially all 0s
SBSS
// Statically data that is initially all 0s and does not contain pointers
SNOPTRBSS
// Thread-local data that is initially all 0s
STLSBSS
// Debugging data
SDWARFINFO
SDWARFRANGE
SDWARFLOC
)
func (i SymKind) String() string