diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/alpha/hp-timing.h | 53 | ||||
| -rw-r--r-- | sysdeps/generic/hp-timing-common.h | 62 | ||||
| -rw-r--r-- | sysdeps/generic/hp-timing.h | 32 | ||||
| -rw-r--r-- | sysdeps/i386/i686/hp-timing.h | 61 | ||||
| -rw-r--r-- | sysdeps/ia64/hp-timing.h | 56 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc32/power4/hp-timing.h | 54 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/hp-timing.h | 54 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc32/sparcv9/hp-timing.h | 19 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc64/hp-timing.h | 19 | ||||
| -rw-r--r-- | sysdeps/x86_64/hp-timing.h | 16 |
10 files changed, 82 insertions, 344 deletions
diff --git a/sysdeps/alpha/hp-timing.h b/sysdeps/alpha/hp-timing.h index 9745e5360d..26a0287029 100644 --- a/sysdeps/alpha/hp-timing.h +++ b/sysdeps/alpha/hp-timing.h @@ -20,42 +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 IA-64. 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. - - 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 have the timestamp register, but it's got only a 4 second range. Use it for ld.so profiling only. */ #define HP_TIMING_AVAIL (0) @@ -77,21 +41,6 @@ typedef unsigned int hp_timing_t; (VAR) = (int) (x_) - (int) (x_ >> 32); \ } while (0) -/* 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_word (Val, __buf + sizeof (__buf), 10, 0); \ - int __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 */ diff --git a/sysdeps/generic/hp-timing-common.h b/sysdeps/generic/hp-timing-common.h new file mode 100644 index 0000000000..1d7e95ee80 --- /dev/null +++ b/sysdeps/generic/hp-timing-common.h @@ -0,0 +1,62 @@ +/* High precision, low overhead timing functions. Generic version. + Copyright (C) 1998-2014 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. + + 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, see + <http://www.gnu.org/licenses/>. */ + +/* In case a platform supports timers in the hardware the following macros + and types must be defined: + + - 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. This type must be integral. + + - HP_TIMING_NOW: place timestamp for current time in variable given as + parameter. +*/ + +/* The target supports hp-timing. Share the common infrastructure. */ + +#include <string.h> +#include <sys/param.h> +#include <_itoa.h> + +/* Compute the difference between START and END, storing into DIFF. */ +#define HP_TIMING_DIFF(Diff, Start, End) ((Diff) = (End) - (Start)) + +/* Accumulate ADD into SUM. No attempt is made to be thread-safe. */ +#define HP_TIMING_ACCUM_NT(Sum, Diff) ((Sum) += (Diff)) + +/* Write a decimal representation of the timing value into the given string. */ +#define HP_TIMING_PRINT(Dest, Len, Val) \ + do { \ + char __buf[20]; \ + char *__dest = (Dest); \ + size_t __len = (Len); \ + char *__cp = _itoa ((Val), __buf + sizeof (__buf), 10, 0); \ + size_t __cp_len = MIN (__buf + sizeof (__buf) - __cp, __len); \ + memcpy (__dest, __cp, __cp_len); \ + memcpy (__dest + __cp_len, " cycles", \ + MIN (__len - __cp_len, sizeof (" cycles"))); \ + __dest[__len - 1] = '\0'; \ + } while (0) diff --git a/sysdeps/generic/hp-timing.h b/sysdeps/generic/hp-timing.h index 49ddb91046..95c051dd57 100644 --- a/sysdeps/generic/hp-timing.h +++ b/sysdeps/generic/hp-timing.h @@ -20,39 +20,9 @@ #ifndef _HP_TIMING_H #define _HP_TIMING_H 1 - /* There are no generic definitions for the times. We could write something using the `gettimeofday' system call where available but the overhead of - the system call might be too high. - - In case a platform supports timers in the hardware the following macros - and types must be defined: - - - 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. - -*/ + the system call might be too high. */ /* Provide dummy definitions. */ #define HP_TIMING_AVAIL (0) 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 */ diff --git a/sysdeps/ia64/hp-timing.h b/sysdeps/ia64/hp-timing.h index 6b49ffc2eb..3d441ff1ad 100644 --- a/sysdeps/ia64/hp-timing.h +++ b/sysdeps/ia64/hp-timing.h @@ -20,44 +20,6 @@ #ifndef _HP_TIMING_H #define _HP_TIMING_H 1 -#include <string.h> -#include <sys/param.h> -#include <_itoa.h> -#include <ia64intrin.h> - -/* The macros defined here use the timestamp counter in IA-64. 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. - - 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) @@ -81,22 +43,6 @@ typedef unsigned long int hp_timing_t; while (REPEAT_READ (__itc)); \ Var = __itc; }) -/* 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_word (Val, __buf + sizeof (__buf), 10, 0); \ - int __len = (Len); \ - char *__dest = (Buf); \ - while (__len-- > 0 && __cp < __buf + sizeof (__buf)) \ - *__dest++ = *__cp++; \ - memcpy (__dest, " clock cycles", MIN (__len, \ - (int) sizeof (" clock cycles"))); \ - } while (0) +#include <hp-timing-common.h> #endif /* hp-timing.h */ diff --git a/sysdeps/powerpc/powerpc32/power4/hp-timing.h b/sysdeps/powerpc/powerpc32/power4/hp-timing.h index 702efac396..f5237e38d9 100644 --- a/sysdeps/powerpc/powerpc32/power4/hp-timing.h +++ b/sysdeps/powerpc/powerpc32/power4/hp-timing.h @@ -20,43 +20,6 @@ #ifndef _HP_TIMING_H #define _HP_TIMING_H 1 -#include <string.h> -#include <sys/param.h> -#include <_itoa.h> -#include <atomic.h> - -/* The macros defined here use the powerpc 64-bit time base register. - The time base is nominally clocked at 1/8th the CPU clock, but this - can vary. - - 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) @@ -85,21 +48,6 @@ typedef unsigned long long int hp_timing_t; Var = ((hp_timing_t) hi << 32) | lo; \ } while (0) -/* It's simple arithmetic in 64-bit. */ -#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, " ticks", MIN (__len, sizeof (" ticks"))); \ - } while (0) +#include <hp-timing-common.h> #endif /* hp-timing.h */ diff --git a/sysdeps/powerpc/powerpc64/hp-timing.h b/sysdeps/powerpc/powerpc64/hp-timing.h index 7241b9b9d7..d4fcb3d606 100644 --- a/sysdeps/powerpc/powerpc64/hp-timing.h +++ b/sysdeps/powerpc/powerpc64/hp-timing.h @@ -20,43 +20,6 @@ #ifndef _HP_TIMING_H #define _HP_TIMING_H 1 -#include <string.h> -#include <sys/param.h> -#include <_itoa.h> -#include <atomic.h> - -/* The macros defined here use the powerpc 64-bit time base register. - The time base is nominally clocked at 1/8th the CPU clock, but this - can vary. - - 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) @@ -77,21 +40,6 @@ typedef unsigned long long int hp_timing_t; #define HP_TIMING_NOW(Var) __asm__ __volatile__ ("mftb %0" : "=r" (Var)) #endif -/* It's simple arithmetic in 64-bit. */ -#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, " ticks", MIN (__len, sizeof (" ticks"))); \ - } while (0) +#include <hp-timing-common.h> #endif /* hp-timing.h */ diff --git a/sysdeps/sparc/sparc32/sparcv9/hp-timing.h b/sysdeps/sparc/sparc32/sparcv9/hp-timing.h index 3f63ce68d3..4d9188f4e0 100644 --- a/sysdeps/sparc/sparc32/sparcv9/hp-timing.h +++ b/sysdeps/sparc/sparc32/sparcv9/hp-timing.h @@ -20,10 +20,6 @@ #ifndef _HP_TIMING_H #define _HP_TIMING_H 1 -#include <string.h> -#include <sys/param.h> -#include <_itoa.h> - #define HP_TIMING_AVAIL (1) #define HP_TIMING_INLINE (1) @@ -34,19 +30,6 @@ typedef unsigned long long int hp_timing_t; "srlx %L0, 32, %H0" \ : "=r" (Var)) -#define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) - -#define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff) - -#define HP_TIMING_PRINT(Buf, Len, Val) \ - do { \ - char __buf[20]; \ - char *__cp = _itoa (Val, __buf + sizeof (__buf), 10, 0); \ - int __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 */ diff --git a/sysdeps/sparc/sparc64/hp-timing.h b/sysdeps/sparc/sparc64/hp-timing.h index 521f64ec43..ea3ba9b780 100644 --- a/sysdeps/sparc/sparc64/hp-timing.h +++ b/sysdeps/sparc/sparc64/hp-timing.h @@ -20,10 +20,6 @@ #ifndef _HP_TIMING_H #define _HP_TIMING_H 1 -#include <string.h> -#include <sys/param.h> -#include <_itoa.h> - #define HP_TIMING_AVAIL (1) #define HP_TIMING_INLINE (1) @@ -31,19 +27,6 @@ typedef unsigned long int hp_timing_t; #define HP_TIMING_NOW(Var) __asm__ __volatile__ ("rd %%tick, %0" : "=r" (Var)) -#define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) - -#define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff) - -#define HP_TIMING_PRINT(Buf, Len, Val) \ - do { \ - char __buf[20]; \ - char *__cp = _itoa (Val, __buf + sizeof (__buf), 10, 0); \ - int __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 */ diff --git a/sysdeps/x86_64/hp-timing.h b/sysdeps/x86_64/hp-timing.h index e132dacab6..89501fc3f4 100644 --- a/sysdeps/x86_64/hp-timing.h +++ b/sysdeps/x86_64/hp-timing.h @@ -17,15 +17,23 @@ <http://www.gnu.org/licenses/>. */ #ifndef _HP_TIMING_H +#define _HP_TIMING_H 1 -/* We can use some of the i686 implementation without changes. */ -# include <sysdeps/i386/i686/hp-timing.h> +/* We always assume having the timestamp register. */ +#define HP_TIMING_AVAIL (1) + +/* We indeed have inlined functions. */ +#define HP_TIMING_INLINE (1) + +/* We use 64bit values for the times. */ +typedef unsigned long long int hp_timing_t; /* The "=A" constraint used in 32-bit mode does not work in 64-bit mode. */ -# undef HP_TIMING_NOW -# define HP_TIMING_NOW(Var) \ +#define HP_TIMING_NOW(Var) \ ({ unsigned int _hi, _lo; \ asm volatile ("rdtsc" : "=a" (_lo), "=d" (_hi)); \ (Var) = ((unsigned long long int) _hi << 32) | _lo; }) +#include <hp-timing-common.h> + #endif /* hp-timing.h */ |