.gitignore added

[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / golang.org / x / sys@v0.0.0-20210124154548-22da62e12c0c / cpu / hwcap_linux.go

diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/sys@v0.0.0-20210124154548-22da62e12c0c/cpu/hwcap_linux.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/sys@v0.0.0-20210124154548-22da62e12c0c/cpu/hwcap_linux.go
new file mode 100644 (file)
index 0000000..f3baa37
--- /dev/null
+++ b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/sys@v0.0.0-20210124154548-22da62e12c0c/cpu/hwcap_linux.go
@@ -0,0 +1,56 @@
+// 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 (
+       "io/ioutil"
+)
+
+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 {
+       buf, err := ioutil.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
+}