| // 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(); |
| } |
