| // Copyright 2016 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // The standard GNU/Linux sigset type on big-endian 64-bit machines. |
| |
| //go:build linux && (ppc64 || s390x) |
| // +build linux |
| // +build ppc64 s390x |
| |
| package runtime |
| |
| const ( |
| _SS_DISABLE = 2 |
| _NSIG = 65 |
| _SI_USER = 0 |
| _SIG_BLOCK = 0 |
| _SIG_UNBLOCK = 1 |
| _SIG_SETMASK = 2 |
| ) |
| |
| type sigset uint64 |
| |
| var sigset_all = sigset(^uint64(0)) |
| |
| //go:nosplit |
| //go:nowritebarrierrec |
| func sigaddset(mask *sigset, i int) { |
| if i > 64 { |
| throw("unexpected signal greater than 64") |
| } |
| *mask |= 1 << (uint(i) - 1) |
| } |
| |
| func sigdelset(mask *sigset, i int) { |
| if i > 64 { |
| throw("unexpected signal greater than 64") |
| } |
| *mask &^= 1 << (uint(i) - 1) |
| } |
| |
| //go:nosplit |
| func sigfillset(mask *uint64) { |
| *mask = ^uint64(0) |
| } |