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author | 2025-03-09 17:47:56 +0100 | |
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committer | 2025-03-10 01:59:49 +0100 | |
commit | 3ac1ee16f377d31a0fb80c8dae28b6239ac4229e (patch) | |
tree | f61faa581feaaeaba2542b9f2b8234a590684413 /vendor/golang.org/x/sys/cpu/hwcap_linux.go | |
parent | [chore] update URLs to forked source (diff) | |
download | gotosocial-3ac1ee16f377d31a0fb80c8dae28b6239ac4229e.tar.xz |
[chore] remove vendor
Diffstat (limited to 'vendor/golang.org/x/sys/cpu/hwcap_linux.go')
-rw-r--r-- | vendor/golang.org/x/sys/cpu/hwcap_linux.go | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/vendor/golang.org/x/sys/cpu/hwcap_linux.go b/vendor/golang.org/x/sys/cpu/hwcap_linux.go deleted file mode 100644 index 34e49f955..000000000 --- a/vendor/golang.org/x/sys/cpu/hwcap_linux.go +++ /dev/null @@ -1,71 +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 - -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 -} |