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41 lines
1.0 KiB
C
41 lines
1.0 KiB
C
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/*
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* \brief Generic timestamp for CTF traces
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* \author Johannes Schlatow
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* \date 2021-08-04
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*/
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/*
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* Copyright (C) 2021 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _CTF__TIMESTAMP_H_
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#define _CTF__TIMESTAMP_H_
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#include <base/fixed_stdint.h>
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#include <util/register.h>
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namespace Ctf {
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using namespace Genode;
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/* generic fixed-width timestamp type for different Trace::Timestamp widths */
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template <int PWIDTH>
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struct _Timestamp : Register<64> {
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static constexpr bool extended() { return PWIDTH < 64; }
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/* define _PWIDTH to get a valid Extension Bitfield even for 64-bit */
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enum { _PWIDTH = PWIDTH < 64 ? PWIDTH : 0 };
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struct Base : Bitfield<0, PWIDTH> { };
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struct Extension : Bitfield<_PWIDTH, 64-_PWIDTH> { };
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};
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typedef _Timestamp<sizeof(Trace::Timestamp)*8> Timestamp;
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typedef uint64_t __attribute__((aligned(1))) Timestamp_base;
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}
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#endif /* _CTF__TIMESTAMP_H_ */
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