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- // +build arm64,linux
- // Minio Cloud Storage, (C) 2016 Minio, Inc.
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- //
- package sha256
- import (
- "bytes"
- "io/ioutil"
- )
- func cpuid(op uint32) (eax, ebx, ecx, edx uint32) {
- return 0, 0, 0, 0
- }
- func cpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32) {
- return 0, 0, 0, 0
- }
- func xgetbv(index uint32) (eax, edx uint32) {
- return 0, 0
- }
- // File to check for cpu capabilities.
- const procCPUInfo = "/proc/cpuinfo"
- // Feature to check for.
- const sha256Feature = "sha2"
- func haveArmSha() bool {
- cpuInfo, err := ioutil.ReadFile(procCPUInfo)
- if err != nil {
- return false
- }
- return bytes.Contains(cpuInfo, []byte(sha256Feature))
- }
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