Add clock_adjtime syscall.

This commit is contained in:
Ulrich Drepper 2011-03-30 22:00:57 -04:00
parent bb2420590c
commit 83fe108b0a
6 changed files with 216 additions and 86 deletions

View File

@ -1,3 +1,11 @@
2011-03-30 Ulrich Drepper <drepper@gmail.com>
* sysdeps/unix/sysv/linux/syscalls.list: Add clock_adjtime.
* sysdeps/unix/sysv/linux/bits/time.h: New file.
* sysdeps/unix/sysv/linux/sys/timex.h: Move struct timex definition
to...
* sysdeps/unix/sysv/linux/bits/timex.h: ...here. New file.
2011-03-22 Ulrich Drepper <drepper@gmail.com>
* sysdeps/unix/sysv/linux/i386/sysconf.c (intel_check_word): Increment

4
NEWS
View File

@ -1,4 +1,4 @@
GNU C Library NEWS -- history of user-visible changes. 2011-3-21
GNU C Library NEWS -- history of user-visible changes. 2011-3-30
Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
See the end for copying conditions.
@ -7,6 +7,8 @@ using `glibc' in the "product" field.
Version 2.14
* New Linux interfaces: clock_adjtime
* The following bugs are resolved with this release:
11724, 12445, 12454, 12460, 12469, 12489, 12509, 12510, 12583, 12587, 12597

View File

@ -0,0 +1,93 @@
/* System-dependent timing definitions. Linux version.
Copyright (C) 1996,1997,1999-2003,2010,2011 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. */
/*
* Never include this file directly; use <time.h> instead.
*/
#if defined __need_timeval || defined __USE_GNU
# 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
#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
/* Monotonic system-wide clock. */
# define CLOCK_MONOTONIC 1
/* High-resolution timer from the CPU. */
# define CLOCK_PROCESS_CPUTIME_ID 2
/* Thread-specific CPU-time clock. */
# define CLOCK_THREAD_CPUTIME_ID 3
/* Monotonic system-wide clock, not adjusted for frequency scaling. */
# define CLOCK_MONOTONIC_RAW 4
/* Identifier for system-wide realtime clock, updated only on ticks. */
# define CLOCK_REALTIME_COARSE 5
/* Monotonic system-wide clock, updated only on ticks. */
# define CLOCK_MONOTONIC_COARSE 6
/* Flag to indicate time is absolute. */
# define TIMER_ABSTIME 1
# endif
# ifdef __USE_GNU
# include <bits/timex.h>
__BEGIN_DECLS
/* Tune a POSIX clock. */
extern int clock_adjtime (__clockid_t __clock_id, struct timex *__utx) __THROW;
__END_DECLS
# endif /* use GNU */
# endif /* bits/time.h */
#endif
#undef __need_timeval

View File

@ -0,0 +1,108 @@
/* Copyright (C) 1995-1997,1999,2007,2009,2011 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 _BITS_TIMEX_H
#define _BITS_TIMEX_H 1
/* These definitions from linux/timex.h as of 2.6.30. */
struct timex
{
unsigned int modes; /* mode selector */
long int offset; /* time offset (usec) */
long int freq; /* frequency offset (scaled ppm) */
long int maxerror; /* maximum error (usec) */
long int esterror; /* estimated error (usec) */
int status; /* clock command/status */
long int constant; /* pll time constant */
long int precision; /* clock precision (usec) (read only) */
long int tolerance; /* clock frequency tolerance (ppm) (read only) */
struct timeval time; /* (read only) */
long int tick; /* (modified) usecs between clock ticks */
long int ppsfreq; /* pps frequency (scaled ppm) (ro) */
long int jitter; /* pps jitter (us) (ro) */
int shift; /* interval duration (s) (shift) (ro) */
long int stabil; /* pps stability (scaled ppm) (ro) */
long int jitcnt; /* jitter limit exceeded (ro) */
long int calcnt; /* calibration intervals (ro) */
long int errcnt; /* calibration errors (ro) */
long int stbcnt; /* stability limit exceeded (ro) */
int tai; /* TAI offset (ro) */
/* ??? */
int :32; int :32; int :32; int :32;
int :32; int :32; int :32; int :32;
int :32; int :32; int :32;
};
/* Mode codes (timex.mode) */
#define ADJ_OFFSET 0x0001 /* time offset */
#define ADJ_FREQUENCY 0x0002 /* frequency offset */
#define ADJ_MAXERROR 0x0004 /* maximum time error */
#define ADJ_ESTERROR 0x0008 /* estimated time error */
#define ADJ_STATUS 0x0010 /* clock status */
#define ADJ_TIMECONST 0x0020 /* pll time constant */
#define ADJ_TAI 0x0080 /* set TAI offset */
#define ADJ_MICRO 0x1000 /* select microsecond resolution */
#define ADJ_NANO 0x2000 /* select nanosecond resolution */
#define ADJ_TICK 0x4000 /* tick value */
#define ADJ_OFFSET_SINGLESHOT 0x8001 /* old-fashioned adjtime */
#define ADJ_OFFSET_SS_READ 0xa001 /* read-only adjtime */
/* xntp 3.4 compatibility names */
#define MOD_OFFSET ADJ_OFFSET
#define MOD_FREQUENCY ADJ_FREQUENCY
#define MOD_MAXERROR ADJ_MAXERROR
#define MOD_ESTERROR ADJ_ESTERROR
#define MOD_STATUS ADJ_STATUS
#define MOD_TIMECONST ADJ_TIMECONST
#define MOD_CLKB ADJ_TICK
#define MOD_CLKA ADJ_OFFSET_SINGLESHOT /* 0x8000 in original */
#define MOD_TAI ADJ_TAI
#define MOD_MICRO ADJ_MICRO
#define MOD_NANO ADJ_NANO
/* Status codes (timex.status) */
#define STA_PLL 0x0001 /* enable PLL updates (rw) */
#define STA_PPSFREQ 0x0002 /* enable PPS freq discipline (rw) */
#define STA_PPSTIME 0x0004 /* enable PPS time discipline (rw) */
#define STA_FLL 0x0008 /* select frequency-lock mode (rw) */
#define STA_INS 0x0010 /* insert leap (rw) */
#define STA_DEL 0x0020 /* delete leap (rw) */
#define STA_UNSYNC 0x0040 /* clock unsynchronized (rw) */
#define STA_FREQHOLD 0x0080 /* hold frequency (rw) */
#define STA_PPSSIGNAL 0x0100 /* PPS signal present (ro) */
#define STA_PPSJITTER 0x0200 /* PPS signal jitter exceeded (ro) */
#define STA_PPSWANDER 0x0400 /* PPS signal wander exceeded (ro) */
#define STA_PPSERROR 0x0800 /* PPS signal calibration error (ro) */
#define STA_CLOCKERR 0x1000 /* clock hardware fault (ro) */
#define STA_NANO 0x2000 /* resolution (0 = us, 1 = ns) (ro) */
#define STA_MODE 0x4000 /* mode (0 = PLL, 1 = FLL) (ro) */
#define STA_CLK 0x8000 /* clock source (0 = A, 1 = B) (ro) */
/* Read-only bits */
#define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | \
STA_PPSERROR | STA_CLOCKERR | STA_NANO | STA_MODE | STA_CLK)
#endif /* bits/timex.h */

View File

@ -1,4 +1,4 @@
/* Copyright (C) 1995-1997, 1999, 2007, 2009 Free Software Foundation, Inc.
/* Copyright (C) 1995-1997,1999,2007,2009,2011 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
@ -24,6 +24,8 @@
/* These definitions from linux/timex.h as of 2.6.30. */
#include <bits/timex.h>
#define NTP_API 4 /* NTP API version */
struct ntptimeval
@ -39,90 +41,6 @@ struct ntptimeval
long int __unused4;
};
struct timex
{
unsigned int modes; /* mode selector */
long int offset; /* time offset (usec) */
long int freq; /* frequency offset (scaled ppm) */
long int maxerror; /* maximum error (usec) */
long int esterror; /* estimated error (usec) */
int status; /* clock command/status */
long int constant; /* pll time constant */
long int precision; /* clock precision (usec) (read only) */
long int tolerance; /* clock frequency tolerance (ppm) (read only) */
struct timeval time; /* (read only) */
long int tick; /* (modified) usecs between clock ticks */
long int ppsfreq; /* pps frequency (scaled ppm) (ro) */
long int jitter; /* pps jitter (us) (ro) */
int shift; /* interval duration (s) (shift) (ro) */
long int stabil; /* pps stability (scaled ppm) (ro) */
long int jitcnt; /* jitter limit exceeded (ro) */
long int calcnt; /* calibration intervals (ro) */
long int errcnt; /* calibration errors (ro) */
long int stbcnt; /* stability limit exceeded (ro) */
int tai; /* TAI offset (ro) */
/* ??? */
int :32; int :32; int :32; int :32;
int :32; int :32; int :32; int :32;
int :32; int :32; int :32;
};
/* Mode codes (timex.mode) */
#define ADJ_OFFSET 0x0001 /* time offset */
#define ADJ_FREQUENCY 0x0002 /* frequency offset */
#define ADJ_MAXERROR 0x0004 /* maximum time error */
#define ADJ_ESTERROR 0x0008 /* estimated time error */
#define ADJ_STATUS 0x0010 /* clock status */
#define ADJ_TIMECONST 0x0020 /* pll time constant */
#define ADJ_TAI 0x0080 /* set TAI offset */
#define ADJ_MICRO 0x1000 /* select microsecond resolution */
#define ADJ_NANO 0x2000 /* select nanosecond resolution */
#define ADJ_TICK 0x4000 /* tick value */
#define ADJ_OFFSET_SINGLESHOT 0x8001 /* old-fashioned adjtime */
#define ADJ_OFFSET_SS_READ 0xa001 /* read-only adjtime */
/* xntp 3.4 compatibility names */
#define MOD_OFFSET ADJ_OFFSET
#define MOD_FREQUENCY ADJ_FREQUENCY
#define MOD_MAXERROR ADJ_MAXERROR
#define MOD_ESTERROR ADJ_ESTERROR
#define MOD_STATUS ADJ_STATUS
#define MOD_TIMECONST ADJ_TIMECONST
#define MOD_CLKB ADJ_TICK
#define MOD_CLKA ADJ_OFFSET_SINGLESHOT /* 0x8000 in original */
#define MOD_TAI ADJ_TAI
#define MOD_MICRO ADJ_MICRO
#define MOD_NANO ADJ_NANO
/* Status codes (timex.status) */
#define STA_PLL 0x0001 /* enable PLL updates (rw) */
#define STA_PPSFREQ 0x0002 /* enable PPS freq discipline (rw) */
#define STA_PPSTIME 0x0004 /* enable PPS time discipline (rw) */
#define STA_FLL 0x0008 /* select frequency-lock mode (rw) */
#define STA_INS 0x0010 /* insert leap (rw) */
#define STA_DEL 0x0020 /* delete leap (rw) */
#define STA_UNSYNC 0x0040 /* clock unsynchronized (rw) */
#define STA_FREQHOLD 0x0080 /* hold frequency (rw) */
#define STA_PPSSIGNAL 0x0100 /* PPS signal present (ro) */
#define STA_PPSJITTER 0x0200 /* PPS signal jitter exceeded (ro) */
#define STA_PPSWANDER 0x0400 /* PPS signal wander exceeded (ro) */
#define STA_PPSERROR 0x0800 /* PPS signal calibration error (ro) */
#define STA_CLOCKERR 0x1000 /* clock hardware fault (ro) */
#define STA_NANO 0x2000 /* resolution (0 = us, 1 = ns) (ro) */
#define STA_MODE 0x4000 /* mode (0 = PLL, 1 = FLL) (ro) */
#define STA_CLK 0x8000 /* clock source (0 = A, 1 = B) (ro) */
/* Read-only bits */
#define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | \
STA_PPSERROR | STA_CLOCKERR | STA_NANO | STA_MODE | STA_CLK)
/* Clock states (time_state) */
#define TIME_OK 0 /* clock synchronized, no leap second */
#define TIME_INS 1 /* insert leap second */

View File

@ -4,6 +4,7 @@ adjtimex adjtime adjtimex i:p __adjtimex adjtimex ntp_adjtime __adjtimex_interna
bdflush EXTRA bdflush i:ii bdflush
capget EXTRA capget i:pp capget
capset EXTRA capset i:pp capset
clock_adjtime EXTRA clock_adjtime i:ip clock_adjtime
creat - creat Ci:si __libc_creat creat
create_module EXTRA create_module 3 create_module
delete_module EXTRA delete_module 3 delete_module