Initial check-in of gcc 4.7.2.

Change-Id: I4a2f5a921c21741a0e18bda986d77e5f1bef0365

1 files changed, 64 insertions, 0 deletions

diff --git a/gcc-4.7/libgo/runtime/signal_unix.c b/gcc-4.7/libgo/runtime/signal_unix.c
new file mode 100644
index 000000000..3b8f43937
--- /dev/null
+++ b/gcc-4.7/libgo/runtime/signal_unix.c
@@ -0,0 +1,64 @@
+// Copyright 2012 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.
+
+// +build darwin freebsd linux openbsd netbsd
+
+#include <sys/time.h>
+
+#include "runtime.h"
+#include "defs.h"
+
+extern SigTab runtime_sigtab[];
+
+void
+runtime_initsig(void)
+{
+	int32 i;
+	SigTab *t;
+
+	// First call: basic setup.
+	for(i = 0; runtime_sigtab[i].sig != -1; i++) {
+		t = &runtime_sigtab[i];
+		if((t->flags == 0) || (t->flags & SigDefault))
+			continue;
+		runtime_setsig(i, false, true);
+	}
+}
+
+void
+runtime_sigenable(uint32 sig)
+{
+	int32 i;
+	SigTab *t;
+
+	for(i = 0; runtime_sigtab[i].sig != -1; i++) {
+		// ~0 means all signals.
+		if(~sig == 0 || runtime_sigtab[i].sig == (int32)sig) {
+			t = &runtime_sigtab[i];
+			if(t->flags & SigDefault) {
+				runtime_setsig(i, false, true);
+				t->flags &= ~SigDefault;  // make this idempotent
+			}
+		}
+	}
+}
+
+void
+runtime_resetcpuprofiler(int32 hz)
+{
+	struct itimerval it;
+
+	runtime_memclr((byte*)&it, sizeof it);
+	if(hz == 0) {
+		runtime_setitimer(ITIMER_PROF, &it, nil);
+		runtime_setprof(false);
+	} else {
+		it.it_interval.tv_sec = 0;
+		it.it_interval.tv_usec = 1000000 / hz;
+		it.it_value = it.it_interval;
+		runtime_setitimer(ITIMER_PROF, &it, nil);
+		runtime_setprof(true);
+	}
+	runtime_m()->profilehz = hz;
+}