diff options
Diffstat (limited to 'sysdeps/unix')
| -rw-r--r-- | sysdeps/unix/clock_gettime.c | 63 | ||||
| -rw-r--r-- | sysdeps/unix/clock_nanosleep.c | 7 | ||||
| -rw-r--r-- | sysdeps/unix/clock_settime.c | 58 | ||||
| -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 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/get_clockfreq.c | 4 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/ia64/get_clockfreq.c | 89 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/bits/time.h | 73 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9b/bits/time.h | 73 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc64/bits/time.h | 73 |
16 files changed, 431 insertions, 366 deletions
diff --git a/sysdeps/unix/clock_gettime.c b/sysdeps/unix/clock_gettime.c index 854cb979c2..7ea75ba00f 100644 --- a/sysdeps/unix/clock_gettime.c +++ b/sysdeps/unix/clock_gettime.c @@ -17,14 +17,30 @@ Boston, MA 02111-1307, USA. */ #include <errno.h> +#include <stdint.h> #include <time.h> #include <sys/time.h> +#include <libc-internal.h> +#include <hp-timing.h> -#ifndef EXTRA_CLOCK_CASES -# define EXTRA_CLOCK_CASES +#if HP_TIMING_AVAIL +/* 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 hp_timing_t freq; + + +/* We need the starting time for the process. */ +extern hp_timing_t _dl_cpuclock_offset; + + +/* This function is defined in the thread library. */ +extern int __pthread_clock_gettime (hp_timing_t freq, struct timespec *tp) + __attribute__ ((__weak__)); #endif + /* Get current value of CLOCK and store it in TP. */ int clock_gettime (clockid_t clock_id, struct timespec *tp) @@ -41,7 +57,48 @@ clock_gettime (clockid_t clock_id, struct timespec *tp) TIMEVAL_TO_TIMESPEC (&tv, tp); break; - EXTRA_CLOCK_CASES +#if HP_TIMING_AVAIL + case CLOCK_PROCESS_CPUTIME_ID: + case CLOCK_THREAD_CPUTIME_ID: + { + hp_timing_t 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; + } + + if (clock_id == CLOCK_THREAD_CPUTIME_ID + && __pthread_clock_gettime != NULL) + { + retval = __pthread_clock_gettime (freq, tp); + break; + } + + /* Get the current counter. */ + HP_TIMING_NOW (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) * UINT64_C (1000000000)) / freq; + + retval = 0; + } + break; +#endif default: __set_errno (EINVAL); diff --git a/sysdeps/unix/clock_nanosleep.c b/sysdeps/unix/clock_nanosleep.c index 0170188f06..635eec4160 100644 --- a/sysdeps/unix/clock_nanosleep.c +++ b/sysdeps/unix/clock_nanosleep.c @@ -20,9 +20,14 @@ #include <assert.h> #include <errno.h> #include <time.h> +#include <hp-timing.h> -#ifndef CLOCK_P +#if HP_TIMING_AVAIL +# define CLOCK_P(clock) \ + (clock) != CLOCK_PROCESS_CPUTIME_ID \ + && (clock) != CLOCK_THREAD_CPUTIME_ID +#else # define CLOCK_P(clock) 0 #endif diff --git a/sysdeps/unix/clock_settime.c b/sysdeps/unix/clock_settime.c index 9155d4607d..69d6802b38 100644 --- a/sysdeps/unix/clock_settime.c +++ b/sysdeps/unix/clock_settime.c @@ -19,12 +19,26 @@ #include <errno.h> #include <time.h> #include <sys/time.h> +#include <libc-internal.h> -#ifndef EXTRA_CLOCK_CASES -# define EXTRA_CLOCK_CASES +#if HP_TIMING_AVAIL +/* 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 hp_timing_t freq; + + +/* We need the starting time for the process. */ +extern hp_timing_t _dl_cpuclock_offset; + + +/* This function is defined in the thread library. */ +extern void __pthread_clock_settime (hp_timing_t offset) + __attribute__ ((__weak__)); #endif + /* Set CLOCK to value TP. */ int clock_settime (clockid_t clock_id, const struct timespec *tp) @@ -47,7 +61,45 @@ clock_settime (clockid_t clock_id, const struct timespec *tp) retval = settimeofday (&tv, NULL); break; - EXTRA_CLOCK_CASES +#if HP_TIMING_AVAIL + case CLOCK_PROCESS_CPUTIME_ID: + case CLOCK_THREAD_CPUTIME_ID: + { + hp_timing_t tsc; + hp_timing_t usertime; + + /* First thing is to get the current time. */ + HP_TIMING_NOW (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. */ + retval = -1; + 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); + + retval = 0; + } + break; +#endif default: __set_errno (EINVAL); 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> diff --git a/sysdeps/unix/sysv/linux/i386/get_clockfreq.c b/sysdeps/unix/sysv/linux/i386/get_clockfreq.c index 4d7303ab26..3caf66c88c 100644 --- a/sysdeps/unix/sysv/linux/i386/get_clockfreq.c +++ b/sysdeps/unix/sysv/linux/i386/get_clockfreq.c @@ -24,7 +24,7 @@ #include <libc-internal.h> -unsigned long long int +hp_timing_t __get_clockfreq (void) { /* We read the information from the /proc filesystem. It contains at @@ -33,7 +33,7 @@ __get_clockfreq (void) or also cpu MHz : 497.841 We search for this line and convert the number in an integer. */ - static unsigned long long int result; + static hp_timing_t result; int fd; /* If this function was called before, we know the result. */ diff --git a/sysdeps/unix/sysv/linux/ia64/get_clockfreq.c b/sysdeps/unix/sysv/linux/ia64/get_clockfreq.c new file mode 100644 index 0000000000..77106eadb7 --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/get_clockfreq.c @@ -0,0 +1,89 @@ +/* Get frequency of the system processor. IA-64/Linux version. + 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 <ctype.h> +#include <fcntl.h> +#include <string.h> +#include <unistd.h> +#include <libc-internal.h> + + +hp_timing_t +__get_clockfreq (void) +{ + /* We read the information from the /proc filesystem. It contains at + least one line like + itc MHz : 733.390988 + We search for this line and convert the number in an integer. */ + static hp_timing_t result; + int fd; + + /* If this function was called before, we know the result. */ + if (result != 0) + return result; + + fd = open ("/proc/cpuinfo", O_RDONLY); + if (__builtin_expect (fd != -1, 1)) + { + /* XXX AFAIK the /proc filesystem can generate "files" only up + to a size of 4096 bytes. */ + char buf[4096]; + ssize_t n; + + n = read (fd, buf, sizeof buf); + if (__builtin_expect (n, 1) > 0) + { + char *mhz = memmem (buf, n, "itc MHz", 7); + + if (__builtin_expect (mhz != NULL, 1)) + { + char *endp = buf + n; + int seen_decpoint = 0; + int ndigits = 0; + + /* Search for the beginning of the string. */ + while (mhz < endp && (*mhz < '0' || *mhz > '9') && *mhz != '\n') + ++mhz; + + while (mhz < endp && *mhz != '\n') + { + if (*mhz >= '0' && *mhz <= '9') + { + result *= 10; + result += *mhz - '0'; + if (seen_decpoint) + ++ndigits; + } + else if (*mhz == '.') + seen_decpoint = 1; + + ++mhz; + } + + /* Compensate for missing digits at the end. */ + while (ndigits++ < 6) + result *= 10; + } + } + + close (fd); + } + + return result; +} diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/bits/time.h b/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/bits/time.h new file mode 100644 index 0000000000..26d9b51693 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/bits/time.h @@ -0,0 +1,73 @@ +/* System-dependent timing definitions. Linux/SPARCv9 version. + Copyright (C) 1996, 1997, 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. */ + +/* + * Never include this file directly; use <time.h> instead. + */ + +#ifndef __need_timeval +# ifndef _BITS_TIME_H +# define _BITS_TIME_H 1 + +/* ISO/IEC 9899:1990 7.12.1: <time.h> + The macro `CLOCKS_PER_SEC' is the number per second of the value + returned by the `clock' function. */ +/* CAE XSH, Issue 4, Version 2: <time.h> + The value of CLOCKS_PER_SEC is required to be 1 million on all + XSI-conformant systems. */ +# define CLOCKS_PER_SEC 1000000l + +# if !defined __STRICT_ANSI__ && !defined __USE_XOPEN2K +/* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK + presents the real value for clock ticks per second for the system. */ +# include <bits/types.h> +extern long int __sysconf (int); +# define CLK_TCK ((__clock_t) __sysconf (2)) /* 2 is _SC_CLK_TCK */ +# endif + +# ifdef __USE_POSIX199309 +/* Identifier for system-wide realtime clock. */ +# define CLOCK_REALTIME 0 +/* High-resolution timer from the CPU. */ +# define CLOCK_PROCESS_CPUTIME_ID 2 +/* Thread-specific CPU-time clock. */ +# define CLOCK_THREAD_CPUTIME_ID 3 + +/* Flag to indicate time is absolute. */ +# define TIMER_ABSTIME 1 +# endif + +# endif /* bits/time.h */ +#endif + +#ifdef __need_timeval +# undef __need_timeval +# ifndef _STRUCT_TIMEVAL +# define _STRUCT_TIMEVAL 1 +# include <bits/types.h> + +/* A time value that is accurate to the nearest + microsecond but also has a range of years. */ +struct timeval + { + __time_t tv_sec; /* Seconds. */ + __suseconds_t tv_usec; /* Microseconds. */ + }; +# endif /* struct timeval */ +#endif /* need timeval */ diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9b/bits/time.h b/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9b/bits/time.h new file mode 100644 index 0000000000..6d0d8e4687 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9b/bits/time.h @@ -0,0 +1,73 @@ +/* System-dependent timing definitions. Linux/SPARCv9b version. + Copyright (C) 1996, 1997, 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. */ + +/* + * Never include this file directly; use <time.h> instead. + */ + +#ifndef __need_timeval +# ifndef _BITS_TIME_H +# define _BITS_TIME_H 1 + +/* ISO/IEC 9899:1990 7.12.1: <time.h> + The macro `CLOCKS_PER_SEC' is the number per second of the value + returned by the `clock' function. */ +/* CAE XSH, Issue 4, Version 2: <time.h> + The value of CLOCKS_PER_SEC is required to be 1 million on all + XSI-conformant systems. */ +# define CLOCKS_PER_SEC 1000000l + +# if !defined __STRICT_ANSI__ && !defined __USE_XOPEN2K +/* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK + presents the real value for clock ticks per second for the system. */ +# include <bits/types.h> +extern long int __sysconf (int); +# define CLK_TCK ((__clock_t) __sysconf (2)) /* 2 is _SC_CLK_TCK */ +# endif + +# ifdef __USE_POSIX199309 +/* Identifier for system-wide realtime clock. */ +# define CLOCK_REALTIME 0 +/* High-resolution timer from the CPU. */ +# define CLOCK_PROCESS_CPUTIME_ID 2 +/* Thread-specific CPU-time clock. */ +# define CLOCK_THREAD_CPUTIME_ID 3 + +/* Flag to indicate time is absolute. */ +# define TIMER_ABSTIME 1 +# endif + +# endif /* bits/time.h */ +#endif + +#ifdef __need_timeval +# undef __need_timeval +# ifndef _STRUCT_TIMEVAL +# define _STRUCT_TIMEVAL 1 +# include <bits/types.h> + +/* A time value that is accurate to the nearest + microsecond but also has a range of years. */ +struct timeval + { + __time_t tv_sec; /* Seconds. */ + __suseconds_t tv_usec; /* Microseconds. */ + }; +# endif /* struct timeval */ +#endif /* need timeval */ diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/bits/time.h b/sysdeps/unix/sysv/linux/sparc/sparc64/bits/time.h new file mode 100644 index 0000000000..752b0a03f1 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/bits/time.h @@ -0,0 +1,73 @@ +/* System-dependent timing definitions. Linux/SPARC64 version. + Copyright (C) 1996, 1997, 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. */ + +/* + * Never include this file directly; use <time.h> instead. + */ + +#ifndef __need_timeval +# ifndef _BITS_TIME_H +# define _BITS_TIME_H 1 + +/* ISO/IEC 9899:1990 7.12.1: <time.h> + The macro `CLOCKS_PER_SEC' is the number per second of the value + returned by the `clock' function. */ +/* CAE XSH, Issue 4, Version 2: <time.h> + The value of CLOCKS_PER_SEC is required to be 1 million on all + XSI-conformant systems. */ +# define CLOCKS_PER_SEC 1000000l + +# if !defined __STRICT_ANSI__ && !defined __USE_XOPEN2K +/* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK + presents the real value for clock ticks per second for the system. */ +# include <bits/types.h> +extern long int __sysconf (int); +# define CLK_TCK ((__clock_t) __sysconf (2)) /* 2 is _SC_CLK_TCK */ +# endif + +# ifdef __USE_POSIX199309 +/* Identifier for system-wide realtime clock. */ +# define CLOCK_REALTIME 0 +/* High-resolution timer from the CPU. */ +# define CLOCK_PROCESS_CPUTIME_ID 2 +/* Thread-specific CPU-time clock. */ +# define CLOCK_THREAD_CPUTIME_ID 3 + +/* Flag to indicate time is absolute. */ +# define TIMER_ABSTIME 1 +# endif + +# endif /* bits/time.h */ +#endif + +#ifdef __need_timeval +# undef __need_timeval +# ifndef _STRUCT_TIMEVAL +# define _STRUCT_TIMEVAL 1 +# include <bits/types.h> + +/* A time value that is accurate to the nearest + microsecond but also has a range of years. */ +struct timeval + { + __time_t tv_sec; /* Seconds. */ + __suseconds_t tv_usec; /* Microseconds. */ + }; +# endif /* struct timeval */ +#endif /* need timeval */ |