mirror of
https://github.com/letic/terraform-provider-google.git
synced 2024-09-19 01:29:57 +00:00
31 lines
909 B
Go
31 lines
909 B
Go
|
// Copyright 2018 The Go Authors. All rights reserved.
|
||
|
// Use of this source code is governed by a BSD-style
|
||
|
// license that can be found in the LICENSE file.
|
||
|
|
||
|
// +build s390x,!gccgo,!appengine
|
||
|
|
||
|
package chacha20
|
||
|
|
||
|
var haveAsm = hasVectorFacility()
|
||
|
|
||
|
const bufSize = 256
|
||
|
|
||
|
// hasVectorFacility reports whether the machine supports the vector
|
||
|
// facility (vx).
|
||
|
// Implementation in asm_s390x.s.
|
||
|
func hasVectorFacility() bool
|
||
|
|
||
|
// xorKeyStreamVX is an assembly implementation of XORKeyStream. It must only
|
||
|
// be called when the vector facility is available.
|
||
|
// Implementation in asm_s390x.s.
|
||
|
//go:noescape
|
||
|
func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32, buf *[256]byte, len *int)
|
||
|
|
||
|
func (c *Cipher) xorKeyStreamAsm(dst, src []byte) {
|
||
|
xorKeyStreamVX(dst, src, &c.key, &c.nonce, &c.counter, &c.buf, &c.len)
|
||
|
}
|
||
|
|
||
|
// EXRL targets, DO NOT CALL!
|
||
|
func mvcSrcToBuf()
|
||
|
func mvcBufToDst()
|