diff options
Diffstat (limited to 'sysdeps/unix/i386')
| -rw-r--r-- | sysdeps/unix/i386/i586/Versions | 5 | ||||
| -rw-r--r-- | sysdeps/unix/i386/i586/clock_getres.c | 72 | ||||
| -rw-r--r-- | sysdeps/unix/i386/i586/clock_gettime.c | 107 | ||||
| -rw-r--r-- | sysdeps/unix/i386/i586/clock_nanosleep.c | 25 | ||||
| -rw-r--r-- | sysdeps/unix/i386/i586/clock_settime.c | 85 | ||||
| -rw-r--r-- | sysdeps/unix/i386/i586/cpuclock-init.h | 27 | ||||
| -rw-r--r-- | sysdeps/unix/i386/i686/Implies | 1 | ||||
| -rw-r--r-- | sysdeps/unix/i386/i686/tempname.c | 35 |
8 files changed, 0 insertions, 357 deletions
diff --git a/sysdeps/unix/i386/i586/Versions b/sysdeps/unix/i386/i586/Versions deleted file mode 100644 index 4242ca448a..0000000000 --- a/sysdeps/unix/i386/i586/Versions +++ /dev/null @@ -1,5 +0,0 @@ -ld { - GLIBC_2.2.3 { - _dl_cpuclock_offset; - } -} diff --git a/sysdeps/unix/i386/i586/clock_getres.c b/sysdeps/unix/i386/i586/clock_getres.c deleted file mode 100644 index d11d0464af..0000000000 --- a/sysdeps/unix/i386/i586/clock_getres.c +++ /dev/null @@ -1,72 +0,0 @@ -/* Copyright (C) 1999, 2000, 2001 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <time.h> -#include <sys/param.h> -#include <libc-internal.h> - -/* This implementation uses the TSC register in modern (i586 and up) IA-32 - processors (most modern clones also provide it). Since we need the - resolution of the clock and since determining this is not cheap, we - cache the value. But this means that systems with processors running - at different speeds or process migration to machines with slower or - faster processors will not work without changes. */ - - -/* Clock frequency of the processor. */ -static long int nsec; - - -/* We add an limitation here: we assume that the machine is not up as - long as it takes to wrap-around the 64-bit timestamp counter. On a - 4GHz machine it would take 136 years of uptime to wrap around so - this "limitation" is not severe. - - We use this clock also as the monotonic clock since we don't allow - setting the CPU-time clock. If this should ever change we will have - to separate the two. */ -#define EXTRA_CLOCK_CASES \ - case CLOCK_PROCESS_CPUTIME_ID: \ - case CLOCK_THREAD_CPUTIME_ID: \ - { \ - if (__builtin_expect (nsec == 0, 0)) \ - { \ - unsigned long long int freq; \ - \ - /* This can only happen if we haven't initialized the `freq' \ - variable yet. Do this now. We don't have to protect this \ - code against multiple execution since all of them should \ - lead to the same result. */ \ - freq = __get_clockfreq (); \ - if (__builtin_expect (freq == 0, 0)) \ - /* Something went wrong. */ \ - break; \ - \ - nsec = MAX (1000000000ULL / freq, 1); \ - } \ - \ - /* File in the values. The seconds are always zero (unless we \ - have a 1Hz machine). */ \ - res->tv_sec = 0; \ - res->tv_nsec = nsec; \ - \ - retval = 0; \ - } \ - break; - -#include <sysdeps/posix/clock_getres.c> diff --git a/sysdeps/unix/i386/i586/clock_gettime.c b/sysdeps/unix/i386/i586/clock_gettime.c deleted file mode 100644 index 5e28370acf..0000000000 --- a/sysdeps/unix/i386/i586/clock_gettime.c +++ /dev/null @@ -1,107 +0,0 @@ -/* Copyright (C) 1999, 2000, 2001 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <time.h> -#include <libc-internal.h> - -#include "cpuclock-init.h" - - -/* This implementation uses the TSC register in modern (i586 and up) IA-32 - processors (most modern clones also provide it). Since we need the - resolution of the clock and since determining this is not cheap, we - cache the value. But this means that systems with processors running - at different speeds or process migration to machines with slower or - faster processors will not work without changes. */ - - -/* Clock frequency of the processor. We make it a 64-bit variable - because some jokers are already playing with processors with more - than 4GHz. */ -static unsigned long long int freq; - - -/* We need the starting time for the process. */ -CPUCLOCK_VARDECL (_dl_cpuclock_offset); - - -/* This function is defined in the thread library. */ -extern int __pthread_clock_gettime (unsigned long long int freq, - struct timespec *tp) - __attribute__ ((__weak__)); - - -/* We add an limitation here: we assume that the process is not - running as long as it takes to wrap-around the 64-bit timestamp - counter. On a 4GHz machine it would take 136 years of uptime to - wrap around so this "limitation" is not severe. */ -#define EXTRA_CLOCK_CASES \ - case CLOCK_THREAD_CPUTIME_ID: \ - if (__pthread_clock_gettime != NULL) \ - { \ - if (__builtin_expect (freq == 0, 0)) \ - { \ - /* This can only happen if we haven't initialized the `freq' \ - variable yet. Do this now. We don't have to protect this \ - code against multiple execution since all of them should \ - lead to the same result. */ \ - freq = __get_clockfreq (); \ - if (__builtin_expect (freq == 0, 0)) \ - /* Something went wrong. */ \ - break; \ - } \ - \ - retval = __pthread_clock_gettime (freq, tp); \ - break; \ - } \ - /* FALLTHROUGH */ \ - \ - case CLOCK_PROCESS_CPUTIME_ID: \ - { \ - unsigned long long int tsc; \ - \ - if (__builtin_expect (freq == 0, 0)) \ - { \ - /* This can only happen if we haven't initialized the `freq' \ - variable yet. Do this now. We don't have to protect this \ - code against multiple execution since all of them should \ - lead to the same result. */ \ - freq = __get_clockfreq (); \ - if (__builtin_expect (freq == 0, 0)) \ - /* Something went wrong. */ \ - break; \ - } \ - \ - /* Get the current counter. */ \ - asm volatile ("rdtsc" : "=A" (tsc)); \ - \ - /* Compute the offset since the start time of the process. */ \ - tsc -= _dl_cpuclock_offset; \ - \ - /* Compute the seconds. */ \ - tp->tv_sec = tsc / freq; \ - \ - /* And the nanoseconds. This computation should be stable until \ - we get machines with about 16GHz frequency. */ \ - tp->tv_nsec = ((tsc % freq) * 1000000000ull) / freq; \ - \ - retval = 0; \ - } \ - break; - -#include <sysdeps/unix/clock_gettime.c> diff --git a/sysdeps/unix/i386/i586/clock_nanosleep.c b/sysdeps/unix/i386/i586/clock_nanosleep.c deleted file mode 100644 index a1250cc4bb..0000000000 --- a/sysdeps/unix/i386/i586/clock_nanosleep.c +++ /dev/null @@ -1,25 +0,0 @@ -/* High-resolution sleep with the specified clock. - Copyright (C) 2000 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* Additional definitions for the x86 version. */ -#define CLOCK_P(clock) \ - (clock) != CLOCK_PROCESS_CPUTIME_ID \ - && (clock) != CLOCK_THREAD_CPUTIME_ID - -#include <sysdeps/unix/clock_nanosleep.c> diff --git a/sysdeps/unix/i386/i586/clock_settime.c b/sysdeps/unix/i386/i586/clock_settime.c deleted file mode 100644 index af7ed1be87..0000000000 --- a/sysdeps/unix/i386/i586/clock_settime.c +++ /dev/null @@ -1,85 +0,0 @@ -/* Copyright (C) 2001 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <time.h> - -#include "cpuclock-init.h" -#include "libc-internal.h" - -/* This implementation uses the TSC register in modern (i586 and up) IA-32 - processors (most modern clones also provide it). Since we need the - resolution of the clock and since determining this is not cheap, we - cache the value. But this means that systems with processors running - at different speeds or process migration to machines with slower or - faster processors will not work without changes. */ - - -/* Clock frequency of the processor. We make it a 64-bit variable - because some jokers are already playing with processors with more - than 4GHz. */ -static unsigned long long int freq; - - -/* We need the starting time for the process. */ -CPUCLOCK_VARDECL (_dl_cpuclock_offset); - - -/* This function is defined in the thread library. */ -extern void __pthread_clock_settime (unsigned long long int offset) - __attribute__ ((__weak__)); - - -/* We add an limitation here: we assume that the process is not - running as long as it takes to wrap-around the 64-bit timestamp - counter. On a 4GHz machine it would take 136 years of uptime to - wrap around so this "limitation" is not severe. */ -#define EXTRA_CLOCK_CASES \ - case CLOCK_PROCESS_CPUTIME_ID: \ - case CLOCK_THREAD_CPUTIME_ID: \ - { \ - unsigned long long int tsc; \ - unsigned long long int usertime; \ - \ - /* First thing is to get the current time. */ \ - asm volatile ("rdtsc" : "=A" (tsc)); \ - \ - if (__builtin_expect (freq == 0, 0)) \ - { \ - /* This can only happen if we haven't initialized the `freq' \ - variable yet. Do this now. We don't have to protect this \ - code against multiple execution since all of them should \ - lead to the same result. */ \ - freq = __get_clockfreq (); \ - if (__builtin_expect (freq == 0, 0)) \ - /* Something went wrong. */ \ - break; \ - } \ - \ - /* Convert the user-provided time into CPU ticks. */ \ - usertime = tp->tv_sec * freq + (tp->tv_nsec * freq) / 1000000000ull; \ - \ - /* Determine the offset and use it as the new base value. */ \ - if (clock_id != CLOCK_THREAD_CPUTIME_ID \ - || __pthread_clock_settime == NULL) \ - _dl_cpuclock_offset = tsc - usertime; \ - else \ - __pthread_clock_settime (tsc - usertime); \ - } \ - break; - -#include <sysdeps/unix/clock_settime.c> diff --git a/sysdeps/unix/i386/i586/cpuclock-init.h b/sysdeps/unix/i386/i586/cpuclock-init.h deleted file mode 100644 index ff1ff9752a..0000000000 --- a/sysdeps/unix/i386/i586/cpuclock-init.h +++ /dev/null @@ -1,27 +0,0 @@ -/* x86 TSC based CPU clock initialization code. - Copyright (C) 2001 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* The TSC value has 64 bits. */ -#define CPUCLOCK_VARDEF(name) unsigned long long int name - -/* A declaration. */ -#define CPUCLOCK_VARDECL(name) extern unsigned long long int name - -/* Reading the TSC value is a simple instruction. */ -#define CPUCLOCK_INIT(name) asm volatile ("rdtsc" : "=A" (name)) diff --git a/sysdeps/unix/i386/i686/Implies b/sysdeps/unix/i386/i686/Implies deleted file mode 100644 index 6f31c95d44..0000000000 --- a/sysdeps/unix/i386/i686/Implies +++ /dev/null @@ -1 +0,0 @@ -unix/i386/i586 diff --git a/sysdeps/unix/i386/i686/tempname.c b/sysdeps/unix/i386/i686/tempname.c deleted file mode 100644 index 3d2476e612..0000000000 --- a/sysdeps/unix/i386/i686/tempname.c +++ /dev/null @@ -1,35 +0,0 @@ -/* Copyright (C) 2001 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* For i686 and up we have a better and faster source of random bits in the - form of the time stamp counter. */ -#define RANDOM_BITS(Var) \ - if (__builtin_expect (value == UINT64_C (0), 0)) \ - { \ - /* If this is the first time this function is used initialize \ - the variable we accumulate the value in to some somewhat \ - random value. If we'd not do this programs at startup time \ - might have a reduced set of possible names, at least on slow \ - machines. */ \ - struct timeval tv; \ - __gettimeofday (&tv, NULL); \ - value = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec; \ - } \ - __asm__ __volatile__ ("rdtsc" : "=A" (Var)) - -#include_next <tempname.c> |