mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-22 19:56:39 +00:00
5aeceb5ff7
Bumps [golang.org/x/net](https://github.com/golang/net) from 0.15.0 to 0.16.0. - [Commits](https://github.com/golang/net/compare/v0.15.0...v0.16.0) --- updated-dependencies: - dependency-name: golang.org/x/net dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
72 lines
1.5 KiB
Go
72 lines
1.5 KiB
Go
// 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
|
|
|
|
import (
|
|
"os"
|
|
)
|
|
|
|
const (
|
|
_AT_HWCAP = 16
|
|
_AT_HWCAP2 = 26
|
|
|
|
procAuxv = "/proc/self/auxv"
|
|
|
|
uintSize = int(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 readHWCAP() error {
|
|
// For Go 1.21+, get auxv from the Go runtime.
|
|
if a := getAuxv(); len(a) > 0 {
|
|
for len(a) >= 2 {
|
|
tag, val := a[0], uint(a[1])
|
|
a = a[2:]
|
|
switch tag {
|
|
case _AT_HWCAP:
|
|
hwCap = val
|
|
case _AT_HWCAP2:
|
|
hwCap2 = val
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
buf, err := os.ReadFile(procAuxv)
|
|
if err != nil {
|
|
// e.g. on android /proc/self/auxv is not accessible, so silently
|
|
// ignore the error and leave Initialized = false. On some
|
|
// architectures (e.g. arm64) doinit() implements a fallback
|
|
// readout and will set Initialized = true again.
|
|
return err
|
|
}
|
|
bo := hostByteOrder()
|
|
for len(buf) >= 2*(uintSize/8) {
|
|
var tag, val uint
|
|
switch uintSize {
|
|
case 32:
|
|
tag = uint(bo.Uint32(buf[0:]))
|
|
val = uint(bo.Uint32(buf[4:]))
|
|
buf = buf[8:]
|
|
case 64:
|
|
tag = uint(bo.Uint64(buf[0:]))
|
|
val = uint(bo.Uint64(buf[8:]))
|
|
buf = buf[16:]
|
|
}
|
|
switch tag {
|
|
case _AT_HWCAP:
|
|
hwCap = val
|
|
case _AT_HWCAP2:
|
|
hwCap2 = val
|
|
}
|
|
}
|
|
return nil
|
|
}
|