/usr/include/lttng/ust-getcpu.h is in liblttng-ust-dev 2.9.0-2+deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | #ifndef LTTNG_UST_GETCPU_H
#define LTTNG_UST_GETCPU_H
/*
* Copyright (C) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; version 2.1 of
* the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include <stddef.h>
/*
* Set getcpu override read callback. This callback should return the
* current CPU number.
*/
int lttng_ust_getcpu_override(int (*getcpu)(void));
#endif /* LTTNG_UST_GETCPU_H */
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