diff options
Diffstat (limited to 'src/cmd/internal/goobj2/objfile.go')
| -rw-r--r-- | src/cmd/internal/goobj2/objfile.go | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/cmd/internal/goobj2/objfile.go b/src/cmd/internal/goobj2/objfile.go index ca254b28e0..3336f6cfff 100644 --- a/src/cmd/internal/goobj2/objfile.go +++ b/src/cmd/internal/goobj2/objfile.go @@ -368,6 +368,15 @@ func (a *Aux) Size() int { return 1 + a.Sym.Size() } +const AuxSize = 9 // TODO: is it possible to not hard-code this? + +type Aux2 [AuxSize]byte + +func (a *Aux2) Type() uint8 { return a[0] } +func (a *Aux2) Sym() SymRef { + return SymRef{binary.LittleEndian.Uint32(a[1:]), binary.LittleEndian.Uint32(a[5:])} +} + type Writer struct { wr *bio.Writer stringMap map[string]uint32 @@ -616,6 +625,19 @@ func (r *Reader) AuxOff(i int, j int) uint32 { return r.h.Offsets[BlkAux] + (auxIdx+uint32(j))*uint32(auxsiz) } +// Aux2 returns a pointer to the j-th aux symbol of the i-th symbol. +func (r *Reader) Aux2(i int, j int) *Aux2 { + off := r.AuxOff(i, j) + return (*Aux2)(unsafe.Pointer(&r.b[off])) +} + +// Auxs2 returns the aux symbols of the i-th symbol. +func (r *Reader) Auxs2(i int) []Aux2 { + off := r.AuxOff(i, 0) + n := r.NAux(i) + return (*[1 << 20]Aux2)(unsafe.Pointer(&r.b[off]))[:n:n] +} + // DataOff returns the offset of the i-th symbol's data. func (r *Reader) DataOff(i int) uint32 { dataIdxOff := r.h.Offsets[BlkDataIdx] + uint32(i*4) |