1 files changed, 47 insertions, 0 deletions
diff --git a/libgo/go/runtime/os_gccgo.go b/libgo/go/runtime/os_gccgo.go
new file mode 100644
index 0000000000..a8f05a4b3d
--- /dev/null
+++ b/libgo/go/runtime/os_gccgo.go
@@ -0,0 +1,47 @@
+// Copyright 2009 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.
+
+package runtime
+
+import (
+	"unsafe"
+)
+
+// Temporary for C code to call:
+//go:linkname minit runtime.minit
+
+// Called to initialize a new m (including the bootstrap m).
+// Called on the parent thread (main thread in case of bootstrap), can allocate memory.
+func mpreinit(mp *m) {
+	mp.gsignal = malg(true, true, &mp.gsignalstack, &mp.gsignalstacksize)
+	mp.gsignal.m = mp
+}
+
+// minit is called to initialize a new m (including the bootstrap m).
+// Called on the new thread, cannot allocate memory.
+func minit() {
+	minitSignals()
+
+	// FIXME: We should set _g_.m.procid here.
+}
+
+// Called from dropm to undo the effect of an minit.
+//go:nosplit
+func unminit() {
+	unminitSignals()
+}
+
+var urandom_dev = []byte("/dev/urandom\x00")
+
+func getRandomData(r []byte) {
+	if startupRandomData != nil {
+		n := copy(r, startupRandomData)
+		extendRandom(r, n)
+		return
+	}
+	fd := open(&urandom_dev[0], 0 /* O_RDONLY */, 0)
+	n := read(fd, unsafe.Pointer(&r[0]), int32(len(r)))
+	closefd(fd)
+	extendRandom(r, int(n))
+}