diff options
| author | James Mills <prologic@shortcircuit.net.au> | 2020-03-21 08:20:16 +1000 |
|---|---|---|
| committer | James Mills <prologic@shortcircuit.net.au> | 2020-03-21 08:20:16 +1000 |
| commit | d7a1eab5beba4241dab4402c5cd268432d7b46cd (patch) | |
| tree | 6383b4ebf511b58597d827dc5af00b71c72caf38 /vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go | |
| parent | 13ffd7117180d1a3093ff291481caeb07a8b71de (diff) | |
Migrate to Go111Modules, Add Dockerfile and GoRelaser support
Diffstat (limited to 'vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go')
| -rw-r--r-- | vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go b/vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go deleted file mode 100644 index d579eae..0000000 --- a/vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go +++ /dev/null @@ -1,161 +0,0 @@ -// Copyright 2019 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. - -package cpu - -const cacheLineSize = 256 - -const ( - // bit mask values from /usr/include/bits/hwcap.h - hwcap_ZARCH = 2 - hwcap_STFLE = 4 - hwcap_MSA = 8 - hwcap_LDISP = 16 - hwcap_EIMM = 32 - hwcap_DFP = 64 - hwcap_ETF3EH = 256 - hwcap_VX = 2048 - hwcap_VXE = 8192 -) - -// bitIsSet reports whether the bit at index is set. The bit index -// is in big endian order, so bit index 0 is the leftmost bit. -func bitIsSet(bits []uint64, index uint) bool { - return bits[index/64]&((1<<63)>>(index%64)) != 0 -} - -// function is the code for the named cryptographic function. -type function uint8 - -const ( - // KM{,A,C,CTR} function codes - aes128 function = 18 // AES-128 - aes192 function = 19 // AES-192 - aes256 function = 20 // AES-256 - - // K{I,L}MD function codes - sha1 function = 1 // SHA-1 - sha256 function = 2 // SHA-256 - sha512 function = 3 // SHA-512 - sha3_224 function = 32 // SHA3-224 - sha3_256 function = 33 // SHA3-256 - sha3_384 function = 34 // SHA3-384 - sha3_512 function = 35 // SHA3-512 - shake128 function = 36 // SHAKE-128 - shake256 function = 37 // SHAKE-256 - - // KLMD function codes - ghash function = 65 // GHASH -) - -// queryResult contains the result of a Query function -// call. Bits are numbered in big endian order so the -// leftmost bit (the MSB) is at index 0. -type queryResult struct { - bits [2]uint64 -} - -// Has reports whether the given functions are present. -func (q *queryResult) Has(fns ...function) bool { - if len(fns) == 0 { - panic("no function codes provided") - } - for _, f := range fns { - if !bitIsSet(q.bits[:], uint(f)) { - return false - } - } - return true -} - -// facility is a bit index for the named facility. -type facility uint8 - -const ( - // cryptography facilities - msa4 facility = 77 // message-security-assist extension 4 - msa8 facility = 146 // message-security-assist extension 8 -) - -// facilityList contains the result of an STFLE call. -// Bits are numbered in big endian order so the -// leftmost bit (the MSB) is at index 0. -type facilityList struct { - bits [4]uint64 -} - -// Has reports whether the given facilities are present. -func (s *facilityList) Has(fs ...facility) bool { - if len(fs) == 0 { - panic("no facility bits provided") - } - for _, f := range fs { - if !bitIsSet(s.bits[:], uint(f)) { - return false - } - } - return true -} - -func doinit() { - // test HWCAP bit vector - has := func(featureMask uint) bool { - return hwCap&featureMask == featureMask - } - - // mandatory - S390X.HasZARCH = has(hwcap_ZARCH) - - // optional - S390X.HasSTFLE = has(hwcap_STFLE) - S390X.HasLDISP = has(hwcap_LDISP) - S390X.HasEIMM = has(hwcap_EIMM) - S390X.HasETF3EH = has(hwcap_ETF3EH) - S390X.HasDFP = has(hwcap_DFP) - S390X.HasMSA = has(hwcap_MSA) - S390X.HasVX = has(hwcap_VX) - if S390X.HasVX { - S390X.HasVXE = has(hwcap_VXE) - } - - // We need implementations of stfle, km and so on - // to detect cryptographic features. - if !haveAsmFunctions() { - return - } - - // optional cryptographic functions - if S390X.HasMSA { - aes := []function{aes128, aes192, aes256} - - // cipher message - km, kmc := kmQuery(), kmcQuery() - S390X.HasAES = km.Has(aes...) - S390X.HasAESCBC = kmc.Has(aes...) - if S390X.HasSTFLE { - facilities := stfle() - if facilities.Has(msa4) { - kmctr := kmctrQuery() - S390X.HasAESCTR = kmctr.Has(aes...) - } - if facilities.Has(msa8) { - kma := kmaQuery() - S390X.HasAESGCM = kma.Has(aes...) - } - } - - // compute message digest - kimd := kimdQuery() // intermediate (no padding) - klmd := klmdQuery() // last (padding) - S390X.HasSHA1 = kimd.Has(sha1) && klmd.Has(sha1) - S390X.HasSHA256 = kimd.Has(sha256) && klmd.Has(sha256) - S390X.HasSHA512 = kimd.Has(sha512) && klmd.Has(sha512) - S390X.HasGHASH = kimd.Has(ghash) // KLMD-GHASH does not exist - sha3 := []function{ - sha3_224, sha3_256, sha3_384, sha3_512, - shake128, shake256, - } - S390X.HasSHA3 = kimd.Has(sha3...) && klmd.Has(sha3...) - } -} |
