diff options
Diffstat (limited to 'vendor/github.com/minio/sha256-simd/cpuid_other.go')
| -rw-r--r-- | vendor/github.com/minio/sha256-simd/cpuid_other.go | 40 |
1 files changed, 26 insertions, 14 deletions
diff --git a/vendor/github.com/minio/sha256-simd/cpuid_other.go b/vendor/github.com/minio/sha256-simd/cpuid_other.go index 3e44158282..cd9fbf2d9a 100644 --- a/vendor/github.com/minio/sha256-simd/cpuid_other.go +++ b/vendor/github.com/minio/sha256-simd/cpuid_other.go @@ -1,4 +1,4 @@ -// Minio Cloud Storage, (C) 2016 Minio, Inc. +// Minio Cloud Storage, (C) 2021 Minio, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. @@ -13,22 +13,34 @@ // limitations under the License. // -// +build !386,!amd64,!arm,!arm64 arm64,!linux - package sha256 -func cpuid(op uint32) (eax, ebx, ecx, edx uint32) { - return 0, 0, 0, 0 -} +import ( + "bytes" + "io/ioutil" + "runtime" -func cpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32) { - return 0, 0, 0, 0 -} + "github.com/klauspost/cpuid/v2" +) -func xgetbv(index uint32) (eax, edx uint32) { - return 0, 0 -} +func hasArmSha2() bool { + if cpuid.CPU.Has(cpuid.SHA2) { + return true + } + if runtime.GOARCH != "arm64" || runtime.GOOS != "linux" { + return false + } + + // Fall back to hacky cpuinfo parsing... + const procCPUInfo = "/proc/cpuinfo" + + // Feature to check for. + const sha256Feature = "sha2" + + cpuInfo, err := ioutil.ReadFile(procCPUInfo) + if err != nil { + return false + } + return bytes.Contains(cpuInfo, []byte(sha256Feature)) -func haveArmSha() bool { - return false } |