// 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 points into the Go stack. TSAN can't see the synchronization

// in Go around stack reuse.

_cgo_tsan_acquire();

bounds[0] = (uintptr)addr - size;

bounds[1] = (uintptr)addr;

_cgo_tsan_release();

}