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708e7fb298
This adds feature detection that works on the s390x running zos. There are some differences with Linux (no hwcap, facilities vector available in-memory). These changes should not affect other platforms. Fixes golang/go#41984. Change-Id: Ieabbfafd07367a346a4d279dde0f00aa3fc4321b Reviewed-on: https://go-review.googlesource.com/c/sys/+/262477 Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Martin Möhrmann <moehrmann@google.com> Trust: Martin Möhrmann <moehrmann@google.com> Trust: Emmanuel Odeke <emmanuel@orijtech.com>
26 lines
643 B
Go
26 lines
643 B
Go
// Copyright 2020 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 cpu
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func initS390Xbase() {
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// get the facilities list
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facilities := stfle()
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// mandatory
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S390X.HasZARCH = facilities.Has(zarch)
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S390X.HasSTFLE = facilities.Has(stflef)
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S390X.HasLDISP = facilities.Has(ldisp)
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S390X.HasEIMM = facilities.Has(eimm)
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// optional
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S390X.HasETF3EH = facilities.Has(etf3eh)
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S390X.HasDFP = facilities.Has(dfp)
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S390X.HasMSA = facilities.Has(msa)
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S390X.HasVX = facilities.Has(vx)
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if S390X.HasVX {
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S390X.HasVXE = facilities.Has(vxe)
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}
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}
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