1 files changed, 20 insertions, 0 deletions
diff --git a/src/runtime/cgo/gcc_stack_darwin.c b/src/runtime/cgo/gcc_stack_darwin.c
new file mode 100644
index 0000000000..0a9038eb3b
--- /dev/null
+++ b/src/runtime/cgo/gcc_stack_darwin.c
@@ -0,0 +1,20 @@
+// Copyright 2023 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.
+
+#include <pthread.h>
+#include "libcgo.h"
+
+void
+x_cgo_getstackbound(uintptr bounds[2])
+{
+	void* addr;
+	size_t size;
+	pthread_t p;
+
+	p = pthread_self();
+	addr = pthread_get_stackaddr_np(p); // high address (!)
+	size = pthread_get_stacksize_np(p);
+	bounds[0] = (uintptr)addr - size;
+	bounds[1] = (uintptr)addr;
+}