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cmd/dist, cmd/link, runtime: fix stack size when cross-compiling aix/ppc64

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This commit allows to cross-compiling aix/ppc64. The nosplit limit must
twice as large as on others platforms because of AIX syscalls.
The stack limit, especially stackGuardMultiplier, was set by cmd/dist
during the bootstrap and doesn't depend on GOOS/GOARCH target.

Fixes #29572

Change-Id: Id51e38885e1978d981aa9e14972eaec17294322e
Reviewed-on: https://go-review.googlesource.com/c/157117
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Clément Chigot 2019-01-09 14:05:17 +01:00 • committed by Ian Lance Taylor
parent a5318bf5d6
commit 20ac64a2dd
10 changed files with 36 additions and 24 deletions
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4
src/cmd/internal/obj/mips/obj0.go
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@ -739,7 +739,7 @@ func (c *ctxt0) stacksplit(p *obj.Prog, framesize int32) *obj.Prog {
p = obj.Appendp(p, c.newprog)
p.As = add
p.From.Type = obj.TYPE_CONST
p.From.Offset = objabi.StackGuard
p.From.Offset = int64(objabi.StackGuard)
p.Reg = REGSP
p.To.Type = obj.TYPE_REG
p.To.Reg = REG_R2
@ -754,7 +754,7 @@ func (c *ctxt0) stacksplit(p *obj.Prog, framesize int32) *obj.Prog {
p = obj.Appendp(p, c.newprog)
p.As = mov
p.From.Type = obj.TYPE_CONST
p.From.Offset = int64(framesize) + objabi.StackGuard - objabi.StackSmall
p.From.Offset = int64(framesize) + int64(objabi.StackGuard) - objabi.StackSmall
p.To.Type = obj.TYPE_REG
p.To.Reg = REG_R1