mirror of
https://github.com/genodelabs/genode.git
synced 2024-12-30 18:47:01 +00:00
ca971bbfd8
This patch changes the top-level directory layout as a preparatory step for improving the tools for managing 3rd-party source codes. The rationale is described in the issue referenced below. Issue #1082
46 lines
809 B
C++
46 lines
809 B
C++
/*
|
|
* \brief Trace timestamp
|
|
* \author Josef Soentgen
|
|
* \date 2013-02-12
|
|
*
|
|
* Serialized reading of tsc on x86_32.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2013 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU General Public License version 2.
|
|
*/
|
|
|
|
#ifndef _INCLUDE__TRACE_TIMESTAMP_H_
|
|
#define _INCLUDE__TRACE_TIMESTAMP_H_
|
|
|
|
#include <base/fixed_stdint.h>
|
|
|
|
namespace Genode { namespace Trace {
|
|
|
|
typedef uint64_t Timestamp;
|
|
|
|
inline Timestamp timestamp()
|
|
{
|
|
uint64_t t;
|
|
__asm__ __volatile__ (
|
|
"pushl %%ebx\n\t"
|
|
"xorl %%eax,%%eax\n\t"
|
|
"cpuid\n\t"
|
|
"popl %%ebx\n\t"
|
|
:
|
|
:
|
|
: "%eax", "%ecx", "%edx"
|
|
);
|
|
__asm__ __volatile__ (
|
|
"rdtsc" : "=A" (t)
|
|
);
|
|
|
|
return t;
|
|
}
|
|
} }
|
|
|
|
#endif /* _INCLUDE__TRACE_TIMESTAMP_H_ */
|