mirror of https://github.com/golang/go.git
26 lines
617 B
C
26 lines
617 B
C
// Copyright 2023 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#include <pthread.h>
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#include "libcgo.h"
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void
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x_cgo_getstackbound(uintptr bounds[2])
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{
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void* addr;
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size_t size;
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pthread_t p;
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p = pthread_self();
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addr = pthread_get_stackaddr_np(p); // high address (!)
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size = pthread_get_stacksize_np(p);
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// bounds points into the Go stack. TSAN can't see the synchronization
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// in Go around stack reuse.
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_cgo_tsan_acquire();
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bounds[0] = (uintptr)addr - size;
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bounds[1] = (uintptr)addr;
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_cgo_tsan_release();
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}
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