/usr/include/xenomai/asm-blackfin/tsc.h is in libxenomai-dev 2.6.4+dfsg-1.
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 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | /*
* Copyright (C) 2005 Philippe Gerum <rpm@xenomai.org>.
*
* Xenomai is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
*
* Xenomai 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Xenomai; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _XENO_ASM_BLACKFIN_TSC_H
#define _XENO_ASM_BLACKFIN_TSC_H
#ifndef __KERNEL__
static inline unsigned long long __xn_rdtsc (void)
{
union {
struct {
unsigned long l;
unsigned long h;
} s;
unsigned long long t;
} u;
unsigned long cy2;
__asm__ __volatile__ ( "1: %0 = CYCLES2\n"
"%1 = CYCLES\n"
"%2 = CYCLES2\n"
"CC = %2 == %0\n"
"if !cc jump 1b\n"
:"=d" (u.s.h),
"=d" (u.s.l),
"=d" (cy2)
: /*no input*/ : "cc");
return u.t;
}
#endif
#endif /* _XENO_ASM_BLACKFIN_TSC_H */
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