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* sysdeps/unix/sysv/linux/powerpc/bits/stat.h: Define UTIME_NOW and

Browse Source 
UTIME_OMIT.
	* sysdeps/unix/sysv/linux/x86_64/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/kernel-features.h: Define __ASSUME_UTIMENSAT.
	* io/sys/stat.h: Declare utimensat, futimens.
	* io/utimensat.c: New file.
	* io/futimens.c: New file.
	* sysdeps/unix/sysv/linux/utimensat.c: New file.
	* sysdeps/unix/sysv/linux/futimens.c: New file.
	* io/Makefile (routines): Add utimensat, futimens.
	* io/Versions: Add utimensat, futimens to GLIBC_2.6.
	* sysdeps/unix/sysv/linux/lutimes.c: New file.
	* sysdeps/unix/sysv/linux/futimes.c: Use utimensat syscall if
	available.

	* include/sys/cdefs.h: Redefine __nonnull so that test for
	incorrect parameters in the libc code itself are not omitted.
This commit is contained in:
Ulrich Drepper 2007-05-10 21:44:41 +00:00
parent 00afb11fc0
commit c27d207813
18 changed files with 367 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
ChangeLog
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@ -1,3 +1,28 @@
2007-05-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/powerpc/bits/stat.h: Define UTIME_NOW and
UTIME_OMIT.
* sysdeps/unix/sysv/linux/x86_64/bits/stat.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/stat.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/stat.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/stat.h: Likewise.
* sysdeps/unix/sysv/linux/bits/stat.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/stat.h: Likewise.
* sysdeps/unix/sysv/linux/kernel-features.h: Define __ASSUME_UTIMENSAT.
* io/sys/stat.h: Declare utimensat, futimens.
* io/utimensat.c: New file.
* io/futimens.c: New file.
* sysdeps/unix/sysv/linux/utimensat.c: New file.
* sysdeps/unix/sysv/linux/futimens.c: New file.
* io/Makefile (routines): Add utimensat, futimens.
* io/Versions: Add utimensat, futimens to GLIBC_2.6.
* sysdeps/unix/sysv/linux/lutimes.c: New file.
* sysdeps/unix/sysv/linux/futimes.c: Use utimensat syscall if
available.
* include/sys/cdefs.h: Redefine __nonnull so that test for
incorrect parameters in the libc code itself are not omitted.
2007-05-09 Jakub Jelinek <jakub@redhat.com>
* sysdeps/ia64/fpu/fraiseexcpt.c (feraiseexcept): Don't raise overflow

3
io/Makefile
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@ -51,7 +51,8 @@ routines := \
ftw ftw64 fts poll ppoll \
posix_fadvise posix_fadvise64 \
posix_fallocate posix_fallocate64 \
sendfile sendfile64
sendfile sendfile64 \
utimensat futimens
# These routines will be omitted from the libc shared object.
# Instead the static object files will be included in a special archive

3
io/Versions
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@ -113,4 +113,7 @@ libc {
ppoll;
}
GLIBC_2.6 {
utimensat; futimens;
}
}

36
io/futimens.c Normal file
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@ -0,0 +1,36 @@
/* Change access and modification times of open file. Linux version.
Copyright (C) 2007 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. */
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <time.h>
#include <sysdep.h>
/* Change the access time of the file associated with FD to TSP[0] and
the modification time of FILE to TSP[1]. */
int
futimens (int fd, const struct timespec tsp[2])
{
__set_errno (ENOSYS);
return -1;
}
stub_warning (futimens)
#include <stub-tag.h>

17
io/sys/stat.h
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@ -28,7 +28,7 @@
#include <bits/types.h> /* For __mode_t and __dev_t. */
#if defined __USE_XOPEN || defined __USE_MISC
#if defined __USE_XOPEN || defined __USE_XOPEN2K || defined __USE_MISC
# if defined __USE_XOPEN || defined __USE_XOPEN2K
# define __need_time_t
# endif
@ -354,6 +354,21 @@ extern int mkfifoat (int __fd, __const char *__path, __mode_t __mode)
__THROW __nonnull ((2));
#endif
#ifdef __USE_ATFILE
/* Set file access and modification times relative to directory file
descriptor. */
extern int utimensat (int __fd, __const char *__path,
__const struct timespec __times[2],
int __flags)
__THROW __nonnull ((2));
#endif
#ifdef __USE_GNU
/* XXX This will change to the macro for the next 2008 POSIX revision. */
/* Set file access and modification times of the file associated with FD. */
extern int futimens (int __fd, __const struct timespec __times[2]) __THROW;
#endif
/* To allow the `struct stat' structure and the file type `mode_t'
bits to vary without changing shared library major version number,
the `stat' family of functions and `mknod' are in fact inline

34
io/utimensat.c Normal file
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@ -0,0 +1,34 @@
/* Change access and modification times of open file. Stub version.
Copyright (C) 2007 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. */
#include <errno.h>
#include <sys/stat.h>
/* Change the access time of FILE to TSP[0] and
the modification time of FILE to TSP[1]. */
int
utimensat (int fd, const char *file, const struct timespec tsp[2],
int flags)
{
__set_errno (ENOSYS);
return -1;
}
stub_warning (utimensat)
#include <stub-tag.h>

6
sysdeps/unix/sysv/linux/alpha/bits/stat.h
View File

@ -149,3 +149,9 @@ struct stat64
#define __S_IREAD 0400 /* Read by owner. */
#define __S_IWRITE 0200 /* Write by owner. */
#define __S_IEXEC 0100 /* Execute by owner. */
#if defined __USE_ATFILE || defined __USE_GNU
/* XXX This will change to the macro for the next 2008 POSIX revision. */
# define UTIME_NOW ((1l << 30) - 1l)
# define UTIME_OMIT ((1l << 30) - 2l)
#endif

6
sysdeps/unix/sysv/linux/bits/stat.h
View File

@ -161,3 +161,9 @@ struct stat64
#define __S_IREAD 0400 /* Read by owner. */
#define __S_IWRITE 0200 /* Write by owner. */
#define __S_IEXEC 0100 /* Execute by owner. */
#if defined __USE_ATFILE || defined __USE_GNU
/* XXX This will change to the macro for the next 2008 POSIX revision. */
# define UTIME_NOW ((1l << 30) - 1l)
# define UTIME_OMIT ((1l << 30) - 2l)
#endif

45
sysdeps/unix/sysv/linux/futimens.c Normal file
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@ -0,0 +1,45 @@
/* Change access and modification times of open file. Linux version.
Copyright (C) 2007 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. */
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <time.h>
#include <sysdep.h>
/* Change the access time of the file associated with FD to TSP[0] and
the modification time of FILE to TSP[1].
Starting with 2.6.22 the Linux kernel has the utimensat syscall which
can be used to implement futimens. */
int
futimens (int fd, const struct timespec tsp[2])
{
#ifdef __NR_utimensat
return INLINE_SYSCALL (utimensat, 4, fd, NULL, tsp, 0);
#else
__set_errno (ENOSYS);
return -1;
#endif
}
#ifndef __NR_utimensat
stub_warning (futimens)
# include <stub-tag.h>
#endif

47
sysdeps/unix/sysv/linux/futimes.c
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@ -20,6 +20,7 @@
#include <errno.h>
#include <sysdep.h>
#include <string.h>
#include <time.h>
#include <utime.h>
#include <sys/time.h>
#include <stdio-common/_itoa.h>
@ -27,21 +28,56 @@
#include <kernel-features.h>
/* Change the access time of FILE to TVP[0] and
the modification time of FILE to TVP[1], but do not follow symlinks.
The Linux kernel has no futimes() syscall so we use the /proc
filesystem. */
#ifndef __ASSUME_UTIMENSAT
static int miss_utimensat;
#endif
/* Change the access time of the file associated with FD to TVP[0] and
the modification time of FILE to TVP[1].
Starting with 2.6.22 the Linux kernel has the utimensat syscall which
can be used to implement futimes. Earlier kernels have no futimes()
syscall so we use the /proc filesystem. */
int
__futimes (int fd, const struct timeval tvp[2])
{
/* The utimensat system call expects timespec not timeval. */
struct timespec ts[2];
if (tvp != NULL)
{
if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000
|| tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)
{
__set_errno (EINVAL);
return -1;
}
TIMEVAL_TO_TIMESPEC (&tvp[0], &ts[0]);
TIMEVAL_TO_TIMESPEC (&tvp[1], &ts[1]);
}
#ifdef __ASSUME_UTIMENSAT
return INLINE_SYSCALL (utimensat, 4, fd, NULL, tvp ? &ts : NULL, 0);
#else
int result;
# ifdef __NR_utimensat
if (!__builtin_expect (miss_utimensat, 0))
{
result = INLINE_SYSCALL (utimensat, 4, fd, NULL, tvp ? &ts : NULL, 0);
if (__builtin_expect (result, 0) != -1 || errno != ENOSYS)
return result;
miss_utimensat = 1;
}
# endif
static const char selffd[] = "/proc/self/fd/";
char fname[sizeof (selffd) + 3 * sizeof (int)];
fname[sizeof (fname) - 1] = '\0';
char *cp = _itoa_word ((unsigned int) fd, fname + sizeof (fname) - 1, 10, 0);
cp = memcpy (cp - sizeof (selffd) + 1, selffd, sizeof (selffd) - 1);
int result;
# ifdef __NR_utimes
result = INLINE_SYSCALL (utimes, 2, cp, tvp);
# ifndef __ASSUME_UTIMES
@ -97,5 +133,6 @@ __futimes (int fd, const struct timeval tvp[2])
}
return result;
#endif
}
weak_alias (__futimes, futimes)

6
sysdeps/unix/sysv/linux/ia64/bits/stat.h
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@ -138,3 +138,9 @@ struct stat64
#define __S_IREAD 0400 /* Read by owner. */
#define __S_IWRITE 0200 /* Write by owner. */
#define __S_IEXEC 0100 /* Execute by owner. */
#if defined __USE_ATFILE || defined __USE_GNU
/* XXX This will change to the macro for the next 2008 POSIX revision. */
# define UTIME_NOW ((1l << 30) - 1l)
# define UTIME_OMIT ((1l << 30) - 2l)
#endif

5
sysdeps/unix/sysv/linux/kernel-features.h
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@ -458,3 +458,8 @@
#if __LINUX_KERNEL_VERSION >= 0x020612
# define __ASSUME_FUTEX_LOCK_PI 1
#endif
/* Support for utimensat syscall was added in 2.6.22. */
#if __LINUX_KERNEL_VERSION >= 0x020616
# define __ASSUME_UTIMENSAT 1
#endif

59
sysdeps/unix/sysv/linux/lutimes.c Normal file
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@ -0,0 +1,59 @@
/* Change access and/or modification date of file. Do not follow symbolic
links.
Copyright (C) 2007 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. */
#include <errno.h>
#include <fcntl.h>
#include <time.h>
#include <sys/time.h>
#include <sysdep.h>
#include <kernel-features.h>
int
lutimes (const char *file, const struct timeval tvp[2])
{
#ifdef __NR_utimensat
/* The system call espects timespec, not timeval. */
struct timespec ts[2];
if (tvp != NULL)
{
if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000
|| tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)
{
__set_errno (EINVAL);
return -1;
}
TIMEVAL_TO_TIMESPEC (&tvp[0], &ts[0]);
TIMEVAL_TO_TIMESPEC (&tvp[1], &ts[1]);
}
return INLINE_SYSCALL (utimensat, 4, AT_FDCWD, file, tvp ? ts : NULL,
AT_SYMLINK_NOFOLLOW);
#else
__set_errno (ENOSYS);
return -1;
#endif
}
#ifndef __NR_utimensat
stub_warning (lutimes)
# include <stub-tag.h>
#endif

6
sysdeps/unix/sysv/linux/powerpc/bits/stat.h
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@ -265,3 +265,9 @@ struct stat64
#define __S_IREAD 0400 /* Read by owner. */
#define __S_IWRITE 0200 /* Write by owner. */
#define __S_IEXEC 0100 /* Execute by owner. */
#if defined __USE_ATFILE || defined __USE_GNU
/* XXX This will change to the macro for the next 2008 POSIX revision. */
# define UTIME_NOW ((1l << 30) - 1l)
# define UTIME_OMIT ((1l << 30) - 2l)
#endif

6
sysdeps/unix/sysv/linux/s390/bits/stat.h
View File

@ -254,3 +254,9 @@ struct stat64
#define __S_IREAD 0400 /* Read by owner. */
#define __S_IWRITE 0200 /* Write by owner. */
#define __S_IEXEC 0100 /* Execute by owner. */
#if defined __USE_ATFILE || defined __USE_GNU
/* XXX This will change to the macro for the next 2008 POSIX revision. */
# define UTIME_NOW ((1l << 30) - 1l)
# define UTIME_OMIT ((1l << 30) - 2l)
#endif

6
sysdeps/unix/sysv/linux/sparc/bits/stat.h
View File

@ -163,3 +163,9 @@ struct stat64
#define __S_IREAD 0400 /* Read by owner. */
#define __S_IWRITE 0200 /* Write by owner. */
#define __S_IEXEC 0100 /* Execute by owner. */
#if defined __USE_ATFILE || defined __USE_GNU
/* XXX This will change to the macro for the next 2008 POSIX revision. */
# define UTIME_NOW ((1l << 30) - 1l)
# define UTIME_OMIT ((1l << 30) - 2l)
#endif

50
sysdeps/unix/sysv/linux/utimensat.c Normal file
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@ -0,0 +1,50 @@
/* Change access and modification times of open file. Linux version.
Copyright (C) 2007 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. */
#include <errno.h>
#include <sys/stat.h>
#include <sysdep.h>
#include <kernel-features.h>
/* Change the access time of FILE to TSP[0] and
the modification time of FILE to TSP[1].
Starting with 2.6.22 the Linux kernel has the utimensat syscall. */
int
utimensat (int fd, const char *file, const struct timespec tsp[2],
int flags)
{
if (file == NULL)
{
__set_errno (EINVAL);
return -1;
}
#ifdef __NR_utimensat
return INLINE_SYSCALL (utimensat, 4, fd, file, tsp, flags);
#else
__set_errno (ENOSYS);
return -1;
#endif
}
#ifndef __NR_utimensat
stub_warning (utimensat)
# include <stub-tag.h>
#endif

6
sysdeps/unix/sysv/linux/x86_64/bits/stat.h
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@ -201,3 +201,9 @@ struct stat64
#define __S_IREAD 0400 /* Read by owner. */
#define __S_IWRITE 0200 /* Write by owner. */
#define __S_IEXEC 0100 /* Execute by owner. */
#if defined __USE_ATFILE || defined __USE_GNU
/* XXX This will change to the macro for the next 2008 POSIX revision. */
# define UTIME_NOW ((1l << 30) - 1l)
# define UTIME_OMIT ((1l << 30) - 2l)
#endif