Imports #
"encoding/binary"
"errors"
"fmt"
"internal/saferio"
"io"
"os"
plan9obj
Imports
Constants & Variables
ErrNoSymbols var #
ErrNoSymbols is returned by [File.Symbols] if there is no such section in the File.
var ErrNoSymbols = *ast.CallExprMagic386 const #
const Magic386 = *ast.BinaryExprMagic64 const #
const Magic64 = 0x8000MagicAMD64 const #
const MagicAMD64 = *ast.BinaryExprMagicARM const #
const MagicARM = *ast.BinaryExprStructs
File struct #
A File represents an open Plan 9 a.out file.
type File struct {
FileHeader
Sections []*Section
closer io.Closer
}FileHeader struct #
A FileHeader represents a Plan 9 a.out file header.
type FileHeader struct {
Magic uint32
Bss uint32
Entry uint64
PtrSize int
LoadAddress uint64
HdrSize uint64
}Section struct #
A Section represents a single section in a Plan 9 a.out file.
type Section struct {
SectionHeader
io.ReaderAt
sr *io.SectionReader
}SectionHeader struct #
A SectionHeader represents a single Plan 9 a.out section header. This structure doesn't exist on-disk, but eases navigation through the object file.
type SectionHeader struct {
Name string
Size uint32
Offset uint32
}Sym struct #
A Symbol represents an entry in a Plan 9 a.out symbol table section.
type Sym struct {
Value uint64
Type rune
Name string
}formatError struct #
formatError is returned by some operations if the data does not have the correct format for an object file.
type formatError struct {
off int
msg string
val any
}prog struct #
Plan 9 Program header.
type prog struct {
Magic uint32
Text uint32
Data uint32
Bss uint32
Syms uint32
Entry uint32
Spsz uint32
Pcsz uint32
}sym struct #
Plan 9 symbol table entries.
type sym struct {
value uint64
typ byte
name []byte
}Functions
Close method #
Close closes the [File]. If the [File] was created using [NewFile] directly instead of [Open], Close has no effect.
func (f *File) Close() errorData method #
Data reads and returns the contents of the Plan 9 a.out section.
func (s *Section) Data() ([]byte, error)Error method #
func (e *formatError) Error() stringNewFile function #
NewFile creates a new [File] for accessing a Plan 9 binary in an underlying reader. The Plan 9 binary is expected to start at position 0 in the ReaderAt.
func NewFile(r io.ReaderAt) (*File, error)Open method #
Open returns a new ReadSeeker reading the Plan 9 a.out section.
func (s *Section) Open() io.ReadSeekerOpen function #
Open opens the named file using [os.Open] and prepares it for use as a Plan 9 a.out binary.
func Open(name string) (*File, error)Section method #
Section returns a section with the given name, or nil if no such section exists.
func (f *File) Section(name string) *SectionSymbols method #
Symbols returns the symbol table for f.
func (f *File) Symbols() ([]Sym, error)newTable function #
newTable decodes the Go symbol table in data, returning an in-memory representation.
func newTable(symtab []byte, ptrsz int) ([]Sym, error)parseMagic function #
func parseMagic(magic []byte) (uint32, error)walksymtab function #
func walksymtab(data []byte, ptrsz int, fn func(sym) error) errorGenerated with Arrow