diff options
Diffstat (limited to 'sysdeps/i386/i686/hp-timing.h')
| -rw-r--r-- | sysdeps/i386/i686/hp-timing.h | 61 |
1 files changed, 1 insertions, 60 deletions
diff --git a/sysdeps/i386/i686/hp-timing.h b/sysdeps/i386/i686/hp-timing.h index 12c613e9de..512efc5bd8 100644 --- a/sysdeps/i386/i686/hp-timing.h +++ b/sysdeps/i386/i686/hp-timing.h @@ -20,50 +20,6 @@ #ifndef _HP_TIMING_H #define _HP_TIMING_H 1 -#include <string.h> -#include <sys/param.h> -#include <_itoa.h> - -/* The macros defined here use the timestamp counter in i586 and up versions - of the x86 processors. They provide a very accurate way to measure the - time with very little overhead. The time values themself have no real - meaning, only differences are interesting. - - This version is for the i686 processors. The difference to the i586 - version is that the timerstamp register is unconditionally used. This is - not the case for the i586 version where we have to perform runtime test - whether the processor really has this capability. We have to make this - distinction since the sysdeps/i386/i586 code is supposed to work on all - platforms while the i686 already contains i686-specific code. - - The list of macros we need includes the following: - - - HP_TIMING_AVAIL: test for availability. - - - HP_TIMING_INLINE: this macro is non-zero if the functionality is not - implemented using function calls but instead uses some inlined code - which might simply consist of a few assembler instructions. We have to - know this since we might want to use the macros here in places where we - cannot make function calls. - - - hp_timing_t: This is the type for variables used to store the time - values. - - - HP_TIMING_NOW: place timestamp for current time in variable given as - parameter. - - - HP_TIMING_DIFF: compute difference between two times and store it - in a third. Source and destination might overlap. - - - HP_TIMING_ACCUM_NT: add time difference to another variable, without - being thread-safe. - - - HP_TIMING_PRINT: write decimal representation of the timing value into - the given string. This operation need not be inline even though - HP_TIMING_INLINE is specified. - -*/ - /* We always assume having the timestamp register. */ #define HP_TIMING_AVAIL (1) @@ -80,21 +36,6 @@ typedef unsigned long long int hp_timing_t; in accurate clock cycles here so we don't do this. */ #define HP_TIMING_NOW(Var) __asm__ __volatile__ ("rdtsc" : "=A" (Var)) -/* It's simple arithmetic for us. */ -#define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) - -#define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff) - -/* Print the time value. */ -#define HP_TIMING_PRINT(Buf, Len, Val) \ - do { \ - char __buf[20]; \ - char *__cp = _itoa (Val, __buf + sizeof (__buf), 10, 0); \ - size_t __len = (Len); \ - char *__dest = (Buf); \ - while (__len-- > 0 && __cp < __buf + sizeof (__buf)) \ - *__dest++ = *__cp++; \ - memcpy (__dest, " clock cycles", MIN (__len, sizeof (" clock cycles"))); \ - } while (0) +#include <hp-timing-common.h> #endif /* hp-timing.h */ |