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cmd/internal/ld: fix R_TLS handling now Xsym is not read from object file

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I think this should fix the arm build. A proper fix involves making the handling
of tlsg less fragile, I'll try that tomorrow.

Update #10557

Change-Id: I9b1b666737fb40aebb6f284748509afa8483cce5
Reviewed-on: https://go-review.googlesource.com/9272
Reviewed-by: Dave Cheney <dave@cheney.net>
Run-TryBot: Dave Cheney <dave@cheney.net>
This commit is contained in:
Michael Hudson-Doyle 2015-04-23 20:04:14 +12:00 • committed by Dave Cheney
parent 1b4025f4bd
commit ccc76dba60
1 changed files with 8 additions and 0 deletions
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8
src/cmd/internal/ld/data.go
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@ -372,6 +372,14 @@ func relocsym(s *LSym) {
}
case obj.R_TLS:
if Linkmode == LinkExternal && Iself && HEADTYPE != obj.Hopenbsd {
r.Done = 0
r.Sym = Ctxt.Tlsg
r.Xsym = Ctxt.Tlsg
r.Xadd = r.Add
o = r.Add
break
}
if Linkmode == LinkInternal && Iself && Thearch.Thechar == '5' {
// On ELF ARM, the thread pointer is 8 bytes before
// the start of the thread-local data block, so add 8