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go/misc/cgo/test/callback_c.c
Dmitriy Vyukov fbfed49134 cgo: fix g0 stack guard
Fixes crash when cgo consumes more than 8K
of stack and makes a callback.

Fixes #1328.

R=golang-dev, rogpeppe, rsc
CC=golang-dev, mpimenov
https://golang.org/cl/5371042
2011-11-09 23:11:48 +03:00

18 lines
357 B
C

// Copyright 2011 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 <sys/types.h>
#include "_cgo_export.h"
void
callback(void *f)
{
// use some stack space
volatile char data[64*1024];
data[0] = 0;
goCallback(f);
data[sizeof(data)-1] = 0;
}