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cmd/internal/obj: remove Link.Tlsoffset

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Nothing uses it any more.

Change-Id: I42ee7222b06b1a79b8b44894f3071752f9166d7a
Reviewed-on: https://go-review.googlesource.com/14193
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
This commit is contained in:
Michael Hudson-Doyle 2015-09-02 11:29:57 +12:00 committed by Dave Cheney
parent 5c78589b69
commit 7bf959c67a
2 changed files with 0 additions and 61 deletions
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1
src/cmd/internal/obj/link.go
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@ -502,7 +502,6 @@ type Link struct {
Autosize int32 Autosize int32
Armsize int32 Armsize int32
Pc int64 Pc int64
Tlsoffset int
Diag func(string, ...interface{}) Diag func(string, ...interface{})
Mode int Mode int
Cursym *LSym Cursym *LSym

60
src/cmd/internal/obj/sym.go
View File

@ -105,66 +105,6 @@ func Linknew(arch *LinkArch) *Link {
log.Fatalf("unknown goos %s", Getgoos()) log.Fatalf("unknown goos %s", Getgoos())
} }
// Record thread-local storage offset.
// TODO(rsc): Move tlsoffset back into the linker.
switch ctxt.Headtype {
default:
log.Fatalf("unknown thread-local storage offset for %s", Headstr(ctxt.Headtype))
case Hplan9, Hwindows:
break
/*
* ELF uses TLS offset negative from FS.
* Translate 0(FS) and 8(FS) into -16(FS) and -8(FS).
* Known to low-level assembly in package runtime and runtime/cgo.
*/
case Hlinux,
Hfreebsd,
Hnetbsd,
Hopenbsd,
Hdragonfly,
Hsolaris:
ctxt.Tlsoffset = -1 * ctxt.Arch.Ptrsize
case Hnacl:
switch ctxt.Arch.Thechar {
default:
log.Fatalf("unknown thread-local storage offset for nacl/%s", ctxt.Arch.Name)
case '5':
ctxt.Tlsoffset = 0
case '6':
ctxt.Tlsoffset = 0
case '8':
ctxt.Tlsoffset = -8
}
/*
* OS X system constants - offset from 0(GS) to our TLS.
* Explained in ../../runtime/cgo/gcc_darwin_*.c.
*/
case Hdarwin:
switch ctxt.Arch.Thechar {
default:
log.Fatalf("unknown thread-local storage offset for darwin/%s", ctxt.Arch.Name)
case '5':
ctxt.Tlsoffset = 0 // dummy value, not needed
case '6':
ctxt.Tlsoffset = 0x8a0
case '7':
ctxt.Tlsoffset = 0 // dummy value, not needed
case '8':
ctxt.Tlsoffset = 0x468
}
}
// On arm, record goarm. // On arm, record goarm.
if ctxt.Arch.Thechar == '5' { if ctxt.Arch.Thechar == '5' {
p := Getgoarm() p := Getgoarm()