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519474451a
This is a subset of https://golang.org/cl/20022 with only the copyright header lines, so the next CL will be smaller and more reviewable. Go policy has been single space after periods in comments for some time. The copyright header template at: https://golang.org/doc/contribute.html#copyright also uses a single space. Make them all consistent. Change-Id: Icc26c6b8495c3820da6b171ca96a74701b4a01b0 Reviewed-on: https://go-review.googlesource.com/20111 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"syscall"
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"unsafe"
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)
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var (
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modkernel32 = syscall.NewLazyDLL("kernel32.dll")
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procGetSystemInfo = modkernel32.NewProc("GetSystemInfo")
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)
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// see http://msdn.microsoft.com/en-us/library/windows/desktop/ms724958(v=vs.85).aspx
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type systeminfo struct {
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wProcessorArchitecture uint16
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wReserved uint16
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dwPageSize uint32
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lpMinimumApplicationAddress uintptr
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lpMaximumApplicationAddress uintptr
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dwActiveProcessorMask uintptr
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dwNumberOfProcessors uint32
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dwProcessorType uint32
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dwAllocationGranularity uint32
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wProcessorLevel uint16
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wProcessorRevision uint16
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}
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const (
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PROCESSOR_ARCHITECTURE_AMD64 = 9
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PROCESSOR_ARCHITECTURE_INTEL = 0
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)
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var sysinfo systeminfo
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func sysinit() {
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syscall.Syscall(procGetSystemInfo.Addr(), 1, uintptr(unsafe.Pointer(&sysinfo)), 0, 0)
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switch sysinfo.wProcessorArchitecture {
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case PROCESSOR_ARCHITECTURE_AMD64:
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gohostarch = "amd64"
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case PROCESSOR_ARCHITECTURE_INTEL:
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gohostarch = "386"
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default:
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fatal("unknown processor architecture")
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}
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}
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