blob: 28364c7420e992fecc6955a813b8a8751a2284ec [file] [log] [blame]
// 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();
}