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cmd/internal/obj, cmd/link, runtime: lots of TLS cleanup

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It's particularly nice to get rid of the android special cases in the linker.

Change-Id: I516363af7ce8a6b2f196fe49cb8887ac787a6dad
Reviewed-on: https://go-review.googlesource.com/14197
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Michael Hudson-Doyle 2015-09-02 11:23:15 +12:00
parent 1ef9b5a5b9
commit a5cb76243a
15 changed files with 27 additions and 132 deletions
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18
src/cmd/internal/obj/arm/obj5.go
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@ -129,24 +129,6 @@ func progedit(ctxt *obj.Link, p *obj.Prog) {
p.From.Offset = 0
}
}
if ctxt.Flag_shared != 0 {
// Shared libraries use R_ARM_TLS_IE32 instead of
// R_ARM_TLS_LE32, replacing the link time constant TLS offset in
// runtime.tlsg with an address to a GOT entry containing the
// offset. Rewrite $runtime.tlsg(SB) to runtime.tlsg(SB) to
// compensate.
if ctxt.Tlsg == nil {
ctxt.Tlsg = obj.Linklookup(ctxt, "runtime.tlsg", 0)
}
if p.From.Type == obj.TYPE_ADDR && p.From.Name == obj.NAME_EXTERN && p.From.Sym == ctxt.Tlsg {
p.From.Type = obj.TYPE_MEM
}
if p.To.Type == obj.TYPE_ADDR && p.To.Name == obj.NAME_EXTERN && p.To.Sym == ctxt.Tlsg {
p.To.Type = obj.TYPE_MEM
}
}
}
// Prog.mark