os_linux_be64.go

Documentation: runtime

     1  // Copyright 2016 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  // The standard Linux sigset type on big-endian 64-bit machines.
     6  
     7  //go:build linux && (ppc64 || s390x)
     8  // +build linux
     9  // +build ppc64 s390x
    10  
    11  package runtime
    12  
    13  const (
    14  	_SS_DISABLE  = 2
    15  	_NSIG        = 65
    16  	_SI_USER     = 0
    17  	_SIG_BLOCK   = 0
    18  	_SIG_UNBLOCK = 1
    19  	_SIG_SETMASK = 2
    20  )
    21  
    22  type sigset uint64
    23  
    24  var sigset_all = sigset(^uint64(0))
    25  
    26  //go:nosplit
    27  //go:nowritebarrierrec
    28  func sigaddset(mask *sigset, i int) {
    29  	if i > 64 {
    30  		throw("unexpected signal greater than 64")
    31  	}
    32  	*mask |= 1 << (uint(i) - 1)
    33  }
    34  
    35  func sigdelset(mask *sigset, i int) {
    36  	if i > 64 {
    37  		throw("unexpected signal greater than 64")
    38  	}
    39  	*mask &^= 1 << (uint(i) - 1)
    40  }
    41  
    42  //go:nosplit
    43  func sigfillset(mask *uint64) {
    44  	*mask = ^uint64(0)
    45  }
    46
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