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OpenBSD is bumping up against the nosplit limit, and openbsd/ppc64 is over it. Increase StackGuardMultiplier on OpenBSD, matching AIX. Change-Id: I61e17c99ce77e1fd3f368159dc4615aeae99e913 Reviewed-on: https://go-review.googlesource.com/c/go/+/632996 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> Auto-Submit: Damien Neil <dneil@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
33 lines
946 B
Go
33 lines
946 B
Go
// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package objabi
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import (
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"internal/abi"
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"internal/buildcfg"
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)
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func StackNosplit(race bool) int {
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// This arithmetic must match that in runtime/stack.go:stackNosplit.
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return abi.StackNosplitBase * stackGuardMultiplier(race)
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}
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// stackGuardMultiplier returns a multiplier to apply to the default
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// stack guard size. Larger multipliers are used for non-optimized
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// builds that have larger stack frames or for specific targets.
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func stackGuardMultiplier(race bool) int {
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// This arithmetic must match that in internal/runtime/sys/consts.go:StackGuardMultiplier.
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n := 1
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// On AIX and OpenBSD, a larger stack is needed for syscalls.
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if buildcfg.GOOS == "aix" || buildcfg.GOOS == "openbsd" {
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n += 1
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}
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// The race build also needs more stack.
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if race {
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n += 1
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}
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return n
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}
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