Source file src/runtime/os_linux_generic.go

     1	// Copyright 2009 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	// +build !mips
     6	// +build !mipsle
     7	// +build !mips64
     8	// +build !mips64le
     9	// +build !s390x
    10	// +build !ppc64
    11	// +build linux
    12	
    13	package runtime
    14	
    15	const (
    16		_SS_DISABLE  = 2
    17		_NSIG        = 65
    18		_SI_USER     = 0
    19		_SIG_BLOCK   = 0
    20		_SIG_UNBLOCK = 1
    21		_SIG_SETMASK = 2
    22	)
    23	
    24	// It's hard to tease out exactly how big a Sigset is, but
    25	// rt_sigprocmask crashes if we get it wrong, so if binaries
    26	// are running, this is right.
    27	type sigset [2]uint32
    28	
    29	var sigset_all = sigset{^uint32(0), ^uint32(0)}
    30	
    31	//go:nosplit
    32	//go:nowritebarrierrec
    33	func sigaddset(mask *sigset, i int) {
    34		(*mask)[(i-1)/32] |= 1 << ((uint32(i) - 1) & 31)
    35	}
    36	
    37	func sigdelset(mask *sigset, i int) {
    38		(*mask)[(i-1)/32] &^= 1 << ((uint32(i) - 1) & 31)
    39	}
    40	
    41	func sigfillset(mask *uint64) {
    42		*mask = ^uint64(0)
    43	}
    44	

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