Initial commit: Go 1.23 release state

src/runtime/os_linux_be64.go

@@ -0,0 +1,42 @@
+// 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 Linux sigset type on big-endian 64-bit machines.
+
+//go:build linux && (ppc64 || s390x)
+
+package runtime
+
+const (
+	_SS_DISABLE  = 2
+	_NSIG        = 65
+	_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)
+}