mirror of
https://github.com/genodelabs/genode.git
synced 2024-12-22 23:12:24 +00:00
35 lines
900 B
C
35 lines
900 B
C
|
/*
|
||
|
|
* \brief Trace timestamp
|
||
|
|
* \author Norman Feske
|
||
|
|
* \date 2021-05-01
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2021 Genode Labs GmbH
|
||
|
|
*
|
||
|
|
* This file is part of the Genode OS framework, which is distributed
|
||
|
|
* under the terms of the GNU Affero General Public License version 3.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _INCLUDE__SPEC__ARM_64__TRACE__TIMESTAMP_H_
|
||
|
|
#define _INCLUDE__SPEC__ARM_64__TRACE__TIMESTAMP_H_
|
||
|
|
|
||
|
|
#include <base/fixed_stdint.h>
|
||
|
|
|
||
|
|
namespace Genode { namespace Trace {
|
||
|
|
|
||
|
|
typedef uint64_t Timestamp;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* In Linux/AARCH64, the 'mrs' instruction cannot be executed in user land.
|
||
|
|
* It triggers the abort of the program with an illegal-instruction
|
||
|
|
* exception.
|
||
|
|
*
|
||
|
|
* By returning 0, we discharge the timestamp-based interpolation of
|
||
|
|
* 'Timer::Connection::curr_time', falling back to a precision of 1 ms.
|
||
|
|
*/
|
||
|
|
inline Timestamp timestamp() { return 0; }
|
||
|
|
} }
|
||
|
|
|
||
|
|
#endif /* _INCLUDE__SPEC__ARM_64__TRACE__TIMESTAMP_H_ */
|