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cmd/internal/obj: remove unused code

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Following on from CL 14350, remove the remaining dead code from data.go.

Also leave a TODO to be addressed later (with a unit test) to reduce
the overhead of SymGrow.

Change-Id: Iebad775b1280b54b89e87a3a073ca8af19a8bfba
Reviewed-on: https://go-review.googlesource.com/14359
Run-TryBot: Dave Cheney <dave@cheney.net>
Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Dave Cheney 2015-09-07 16:21:25 +10:00
parent 5cbca8d84b
commit fd50db2a66
1 changed files with 4 additions and 118 deletions
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122
src/cmd/internal/obj/data.go
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@ -36,10 +36,6 @@ import (
"math"
)
func mangle(file string) {
log.Fatalf("%s: mangled input file", file)
}
func Symgrow(ctxt *Link, s *LSym, lsiz int64) {
siz := int(lsiz)
if int64(siz) != lsiz {
@ -48,17 +44,19 @@ func Symgrow(ctxt *Link, s *LSym, lsiz int64) {
if len(s.P) >= siz {
return
}
// TODO(dfc) append cap-len at once, rather than
// one byte at a time.
for cap(s.P) < siz {
s.P = append(s.P[:cap(s.P)], 0)
}
s.P = s.P[:siz]
}
func savedata(ctxt *Link, s *LSym, p *Prog, pn string) {
func savedata(ctxt *Link, s *LSym, p *Prog, file string) {
off := int32(p.From.Offset)
siz := int32(p.From3.Offset)
if off < 0 || siz < 0 || off >= 1<<30 || siz >= 100 {
mangle(pn)
log.Fatalf("%s: mangled input file", file)
}
if ctxt.Enforce_data_order != 0 && off < int32(len(s.P)) {
ctxt.Diag("data out of order (already have %d)\n%v", len(s.P), p)
@ -142,115 +140,3 @@ func Setuintxx(ctxt *Link, s *LSym, off int64, v uint64, wid int64) int64 {
return off + wid
}
func adduintxx(ctxt *Link, s *LSym, v uint64, wid int) int64 {
off := s.Size
Setuintxx(ctxt, s, off, v, int64(wid))
return off
}
func adduint8(ctxt *Link, s *LSym, v uint8) int64 {
return adduintxx(ctxt, s, uint64(v), 1)
}
func adduint16(ctxt *Link, s *LSym, v uint16) int64 {
return adduintxx(ctxt, s, uint64(v), 2)
}
func Adduint32(ctxt *Link, s *LSym, v uint32) int64 {
return adduintxx(ctxt, s, uint64(v), 4)
}
func Adduint64(ctxt *Link, s *LSym, v uint64) int64 {
return adduintxx(ctxt, s, v, 8)
}
func setuint8(ctxt *Link, s *LSym, r int64, v uint8) int64 {
return Setuintxx(ctxt, s, r, uint64(v), 1)
}
func setuint16(ctxt *Link, s *LSym, r int64, v uint16) int64 {
return Setuintxx(ctxt, s, r, uint64(v), 2)
}
func setuint32(ctxt *Link, s *LSym, r int64, v uint32) int64 {
return Setuintxx(ctxt, s, r, uint64(v), 4)
}
func setuint64(ctxt *Link, s *LSym, r int64, v uint64) int64 {
return Setuintxx(ctxt, s, r, v, 8)
}
func addaddrplus(ctxt *Link, s *LSym, t *LSym, add int64) int64 {
if s.Type == 0 {
s.Type = SDATA
}
i := s.Size
s.Size += int64(ctxt.Arch.Ptrsize)
Symgrow(ctxt, s, s.Size)
r := Addrel(s)
r.Sym = t
r.Off = int32(i)
r.Siz = uint8(ctxt.Arch.Ptrsize)
r.Type = R_ADDR
r.Add = add
return i + int64(r.Siz)
}
func addpcrelplus(ctxt *Link, s *LSym, t *LSym, add int64) int64 {
if s.Type == 0 {
s.Type = SDATA
}
i := s.Size
s.Size += 4
Symgrow(ctxt, s, s.Size)
r := Addrel(s)
r.Sym = t
r.Off = int32(i)
r.Add = add
r.Type = R_PCREL
r.Siz = 4
return i + int64(r.Siz)
}
func addaddr(ctxt *Link, s *LSym, t *LSym) int64 {
return addaddrplus(ctxt, s, t, 0)
}
func setaddrplus(ctxt *Link, s *LSym, off int64, t *LSym, add int64) int64 {
if s.Type == 0 {
s.Type = SDATA
}
if off+int64(ctxt.Arch.Ptrsize) > s.Size {
s.Size = off + int64(ctxt.Arch.Ptrsize)
Symgrow(ctxt, s, s.Size)
}
r := Addrel(s)
r.Sym = t
r.Off = int32(off)
r.Siz = uint8(ctxt.Arch.Ptrsize)
r.Type = R_ADDR
r.Add = add
return off + int64(r.Siz)
}
func setaddr(ctxt *Link, s *LSym, off int64, t *LSym) int64 {
return setaddrplus(ctxt, s, off, t, 0)
}
func addaddrplus4(ctxt *Link, s *LSym, t *LSym, add int64) int64 {
if s.Type == 0 {
s.Type = SDATA
}
i := s.Size
s.Size += 4
Symgrow(ctxt, s, s.Size)
r := Addrel(s)
r.Sym = t
r.Off = int32(i)
r.Siz = 4
r.Type = R_ADDR
r.Add = add
return i + int64(r.Siz)
}