diff options
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | sysdeps/x86_64/hp-timing.h | 38 |
2 files changed, 39 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog index b27a3cd066..38ab651239 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2002-08-30 Roland McGrath <roland@redhat.com> + * sysdeps/x86_64/hp-timing.h (HP_TIMING_NOW, HP_TIMING_ACCUM): New + macros replace the i686 versions for 64-bit mode. + * locale/duplocale.c: Include <string.h>. * intl/dcigettext.c (DCIGETTEXT) [_LIBC]: Check for bogus CATEGORY. diff --git a/sysdeps/x86_64/hp-timing.h b/sysdeps/x86_64/hp-timing.h index 1f24ffcf5e..5738039fa4 100644 --- a/sysdeps/x86_64/hp-timing.h +++ b/sysdeps/x86_64/hp-timing.h @@ -1,2 +1,36 @@ -/* We can use the i686 implementation without changes. */ -#include <sysdeps/i386/i686/hp-timing.h> +/* High precision, low overhead timing functions. x86-64 version. + Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _HP_TIMING_H + +/* We can use some of the i686 implementation without changes. */ +# include <sysdeps/i386/i686/hp-timing.h> + +/* The "=A" constraint used in 32-bit mode does not work in 64-bit mode. */ +# undef HP_TIMING_NOW +# define HP_TIMING_NOW(Var) \ + ({ unsigned int _hi, _lo; asm ("rdtsc" : "=a" (_lo), "=d" (_hi)); \ + (Var) = ((unsigned long long int) _hi << 32) | _lo; }) + +/* The funny business for 32-bit mode is not required here. */ +# undef HP_TIMING_ACCUM +# define HP_TIMING_ACCUM(Sum, Diff) ((Sum) += (Diff)) + + +#endif /* hp-timing.h */ |