Function newStructOpsMemberLayout

struct_ops.go:27–48

newStructOpsMemberLayout returns a layout information from a struct_ops member.

(m btf.Member)

// newStructOpsMemberLayout returns a layout information from a struct_ops member.
func newStructOpsMemberLayout(m btf.Member) (*structOpsMemberLayout, error) {
	if m.BitfieldSize > 0 {
		return nil, fmt.Errorf("bitfield %s not supported", m.Name)
	}

	size, err := btf.Sizeof(m.Type)
	if err != nil {
		return nil, fmt.Errorf("sizeof(%s): %w", m.Name, err)
	}

	off := int(m.Offset.Bytes())
	if off < 0 {
		return nil, fmt.Errorf("member %q: invalid offset", m.Name)
	}

	return &structOpsMemberLayout{
		member: m,
		off:    off,
		size:   size,
		typ:    btf.UnderlyingType(m.Type),
	}, nil
}

// bytes returns the portion of `buf` corresponding to the member.
func (ml *structOpsMemberLayout) bytes(buf []byte) ([]byte, error) {