os_linux_be64.go

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