vdso_linux_amd64.go

     1  // Copyright 2012 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package runtime
     6  
     7  import _ "unsafe" // for linkname
     8  
     9  const (
    10  	// vdsoArrayMax is the byte-size of a maximally sized array on this architecture.
    11  	// See cmd/compile/internal/amd64/galign.go arch.MAXWIDTH initialization.
    12  	vdsoArrayMax = 1<<50 - 1
    13  )
    14  
    15  var vdsoLinuxVersion = vdsoVersionKey{"LINUX_2.6", 0x3ae75f6}
    16  
    17  var vdsoSymbolKeys = []vdsoSymbolKey{
    18  	{"__vdso_gettimeofday", 0x315ca59, 0xb01bca00, &vdsoGettimeofdaySym},
    19  	{"__vdso_clock_gettime", 0xd35ec75, 0x6e43a318, &vdsoClockgettimeSym},
    20  }
    21  
    22  var (
    23  	vdsoGettimeofdaySym uintptr
    24  	vdsoClockgettimeSym uintptr
    25  )
    26  
    27  // vdsoGettimeofdaySym is accessed from the syscall package.
    28  //go:linkname vdsoGettimeofdaySym
    29
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