github.com/ice-blockchain/go/src@v0.0.0-20240403114104-1564d284e521/runtime/os_linux_be64.go (about)

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