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428dd03f5a
Without HP_TIMING_ACCUM, dl_hp_timing_overhead is write-only. If we remove it, there's no point in HP_TIMING_DIFF_INIT either.
53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
/* High precision, low overhead timing functions. sparcv9 version.
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Copyright (C) 2001-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by David S. Miller <davem@redhat.com>, 2001.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _HP_TIMING_H
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#define _HP_TIMING_H 1
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#include <string.h>
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#include <sys/param.h>
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#include <_itoa.h>
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#define HP_TIMING_AVAIL (1)
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#define HP_TIMING_INLINE (1)
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typedef unsigned long long int hp_timing_t;
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#define HP_TIMING_NOW(Var) \
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__asm__ __volatile__ ("rd %%tick, %L0\n\t" \
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"srlx %L0, 32, %H0" \
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: "=r" (Var))
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#define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start))
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#define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff)
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#define HP_TIMING_PRINT(Buf, Len, Val) \
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do { \
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char __buf[20]; \
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char *__cp = _itoa (Val, __buf + sizeof (__buf), 10, 0); \
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int __len = (Len); \
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char *__dest = (Buf); \
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while (__len-- > 0 && __cp < __buf + sizeof (__buf)) \
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*__dest++ = *__cp++; \
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memcpy (__dest, " clock cycles", MIN (__len, sizeof (" clock cycles"))); \
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} while (0)
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#endif /* hp-timing.h */
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