diff options
Diffstat (limited to 'vendor/golang.org/x/sys/cpu/cpu_linux.go')
-rw-r--r-- | vendor/golang.org/x/sys/cpu/cpu_linux.go | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/vendor/golang.org/x/sys/cpu/cpu_linux.go b/vendor/golang.org/x/sys/cpu/cpu_linux.go deleted file mode 100644 index a8452e094..000000000 --- a/vendor/golang.org/x/sys/cpu/cpu_linux.go +++ /dev/null @@ -1,61 +0,0 @@ -// 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 !amd64,!amd64p32,!386 - -package cpu - -import ( - "encoding/binary" - "io/ioutil" - "runtime" -) - -const ( - _AT_HWCAP = 16 - _AT_HWCAP2 = 26 - - procAuxv = "/proc/self/auxv" - - uintSize uint = 32 << (^uint(0) >> 63) -) - -// For those platforms don't have a 'cpuid' equivalent we use HWCAP/HWCAP2 -// These are initialized in cpu_$GOARCH.go -// and should not be changed after they are initialized. -var HWCap uint -var HWCap2 uint - -func init() { - buf, err := ioutil.ReadFile(procAuxv) - if err != nil { - panic("read proc auxv failed: " + err.Error()) - } - - pb := int(uintSize / 8) - - for i := 0; i < len(buf)-pb*2; i += pb * 2 { - var tag, val uint - switch uintSize { - case 32: - tag = uint(binary.LittleEndian.Uint32(buf[i:])) - val = uint(binary.LittleEndian.Uint32(buf[i+pb:])) - case 64: - if runtime.GOARCH == "ppc64" { - tag = uint(binary.BigEndian.Uint64(buf[i:])) - val = uint(binary.BigEndian.Uint64(buf[i+pb:])) - } else { - tag = uint(binary.LittleEndian.Uint64(buf[i:])) - val = uint(binary.LittleEndian.Uint64(buf[i+pb:])) - } - } - switch tag { - case _AT_HWCAP: - HWCap = val - case _AT_HWCAP2: - HWCap2 = val - } - } - doinit() -} |