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d77176912b
* Migrate to go modules * make vendor * Update mvdan.cc/xurls * make vendor * Update code.gitea.io/git * make fmt-check * Update github.com/go-sql-driver/mysql * make vendor
31 lines
909 B
Go
31 lines
909 B
Go
// Copyright 2018 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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// +build s390x,!gccgo,!appengine
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package chacha20
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var haveAsm = hasVectorFacility()
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const bufSize = 256
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// hasVectorFacility reports whether the machine supports the vector
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// facility (vx).
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// Implementation in asm_s390x.s.
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func hasVectorFacility() bool
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// xorKeyStreamVX is an assembly implementation of XORKeyStream. It must only
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// be called when the vector facility is available.
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// Implementation in asm_s390x.s.
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//go:noescape
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func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32, buf *[256]byte, len *int)
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func (c *Cipher) xorKeyStreamAsm(dst, src []byte) {
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xorKeyStreamVX(dst, src, &c.key, &c.nonce, &c.counter, &c.buf, &c.len)
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}
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// EXRL targets, DO NOT CALL!
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func mvcSrcToBuf()
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func mvcBufToDst()
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