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15
vendor/golang.org/x/sys/cpu/hwcap_linux.go
generated
vendored
15
vendor/golang.org/x/sys/cpu/hwcap_linux.go
generated
vendored
@ -24,6 +24,21 @@ var hwCap uint
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var hwCap2 uint
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func readHWCAP() error {
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// For Go 1.21+, get auxv from the Go runtime.
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if a := getAuxv(); len(a) > 0 {
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for len(a) >= 2 {
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tag, val := a[0], uint(a[1])
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a = a[2:]
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switch tag {
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case _AT_HWCAP:
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hwCap = val
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case _AT_HWCAP2:
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hwCap2 = val
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}
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}
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return nil
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}
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buf, err := ioutil.ReadFile(procAuxv)
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if err != nil {
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// e.g. on android /proc/self/auxv is not accessible, so silently
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