ed52d5a211
Instead of holding SPEC-variable dependent files and directories inline within the repository structure, move them into 'spec' subdirectories at the corresponding levels, e.g.: repos/base/include/spec repos/base/mk/spec repos/base/lib/mk/spec repos/base/src/core/spec ... Moreover, this commit removes the 'platform' directories. That term was used in an overloaded sense. All SPEC-relative 'platform' directories are now named 'spec'. Other files, like for instance those related to the kernel/architecture specific startup library, where moved from 'platform' directories to explicit, more meaningful places like e.g.: 'src/lib/startup'. Fix #1673
45 lines
919 B
C++
45 lines
919 B
C++
/*
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* \brief Trace timestamp
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* \author Josef Soentgen
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* \date 2013-02-12
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*
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* Serialized reading of tsc on x86_64.
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*/
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/*
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* Copyright (C) 2013 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 General Public License version 2.
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*/
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#ifndef _INCLUDE__SPEC__X86_64__TRACE__TIMESTAMP_H_
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#define _INCLUDE__SPEC__X86_64__TRACE__TIMESTAMP_H_
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#include <base/fixed_stdint.h>
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namespace Genode { namespace Trace {
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typedef uint64_t Timestamp;
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inline Timestamp timestamp() __attribute((always_inline));
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inline Timestamp timestamp()
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{
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uint32_t lo, hi;
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__asm__ __volatile__ (
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"xorl %%eax,%%eax\n\t"
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"cpuid\n\t"
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:
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:
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: "%rax", "%rbx", "%rcx", "%rdx"
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);
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__asm__ __volatile__ (
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"rdtsc" : "=a" (lo), "=d" (hi)
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);
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return (uint64_t)hi << 32 | lo;
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}
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} }
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#endif /* _INCLUDE__SPEC__X86_64__TRACE__TIMESTAMP_H_ */
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