diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/bits/stat.h | 6 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/stat.h | 6 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/futimens.c | 45 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/futimes.c | 63 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/ia64/bits/stat.h | 6 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/kernel-features.h | 5 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/lutimes.c | 59 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/bits/stat.h | 6 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/s390/bits/stat.h | 6 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/bits/stat.h | 6 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/utimensat.c | 50 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/bits/stat.h | 6 |
12 files changed, 251 insertions, 13 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/bits/stat.h b/sysdeps/unix/sysv/linux/alpha/bits/stat.h index 40b6853430..42748be762 100644 --- a/sysdeps/unix/sysv/linux/alpha/bits/stat.h +++ b/sysdeps/unix/sysv/linux/alpha/bits/stat.h @@ -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 diff --git a/sysdeps/unix/sysv/linux/bits/stat.h b/sysdeps/unix/sysv/linux/bits/stat.h index e08899c9a4..cc665f377e 100644 --- a/sysdeps/unix/sysv/linux/bits/stat.h +++ b/sysdeps/unix/sysv/linux/bits/stat.h @@ -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 diff --git a/sysdeps/unix/sysv/linux/futimens.c b/sysdeps/unix/sysv/linux/futimens.c new file mode 100644 index 0000000000..67f2588f86 --- /dev/null +++ b/sysdeps/unix/sysv/linux/futimens.c @@ -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 diff --git a/sysdeps/unix/sysv/linux/futimes.c b/sysdeps/unix/sysv/linux/futimes.c index b307c3ff64..610f1deb29 100644 --- a/sysdeps/unix/sysv/linux/futimes.c +++ b/sysdeps/unix/sysv/linux/futimes.c @@ -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> @@ -27,32 +28,67 @@ #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 +# ifdef __NR_utimes result = INLINE_SYSCALL (utimes, 2, cp, tvp); -# ifndef __ASSUME_UTIMES +# ifndef __ASSUME_UTIMES if (result == -1 && errno == ENOSYS) +# endif # endif -#endif { /* The utimes() syscall does not exist or is not available in the used kernel. Use utime(). For this we have to convert to the data format utime() expects. */ -#ifndef __ASSUME_UTIMES +# ifndef __ASSUME_UTIMES struct utimbuf buf; struct utimbuf *times; @@ -66,7 +102,7 @@ __futimes (int fd, const struct timeval tvp[2]) times = NULL; result = INLINE_SYSCALL (utime, 2, cp, times); -#endif +# endif } if (result == -1) @@ -88,14 +124,15 @@ __futimes (int fd, const struct timeval tvp[2]) case ENOENT: /* Validate the file descriptor by letting fcntl set errno to EBADF if it's bogus. Otherwise it's a /proc issue. */ -#if !defined __NR_fcntl && defined __NR_fcntl64 -# define __NR_fcntl __NR_fcntl64 -#endif +# if !defined __NR_fcntl && defined __NR_fcntl64 +# define __NR_fcntl __NR_fcntl64 +# endif if (INLINE_SYSCALL (fcntl, 3, fd, F_GETFD, 0) != -1) __set_errno (ENOSYS); break; } return result; +#endif } weak_alias (__futimes, futimes) diff --git a/sysdeps/unix/sysv/linux/ia64/bits/stat.h b/sysdeps/unix/sysv/linux/ia64/bits/stat.h index f6b6671c0e..1988c492b0 100644 --- a/sysdeps/unix/sysv/linux/ia64/bits/stat.h +++ b/sysdeps/unix/sysv/linux/ia64/bits/stat.h @@ -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 diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h index e54f675dbe..ed32001544 100644 --- a/sysdeps/unix/sysv/linux/kernel-features.h +++ b/sysdeps/unix/sysv/linux/kernel-features.h @@ -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 diff --git a/sysdeps/unix/sysv/linux/lutimes.c b/sysdeps/unix/sysv/linux/lutimes.c new file mode 100644 index 0000000000..7ea91c336a --- /dev/null +++ b/sysdeps/unix/sysv/linux/lutimes.c @@ -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 diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/stat.h b/sysdeps/unix/sysv/linux/powerpc/bits/stat.h index b020504d0b..53457ef1fa 100644 --- a/sysdeps/unix/sysv/linux/powerpc/bits/stat.h +++ b/sysdeps/unix/sysv/linux/powerpc/bits/stat.h @@ -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 diff --git a/sysdeps/unix/sysv/linux/s390/bits/stat.h b/sysdeps/unix/sysv/linux/s390/bits/stat.h index c8ff532d49..00fcf078ba 100644 --- a/sysdeps/unix/sysv/linux/s390/bits/stat.h +++ b/sysdeps/unix/sysv/linux/s390/bits/stat.h @@ -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 diff --git a/sysdeps/unix/sysv/linux/sparc/bits/stat.h b/sysdeps/unix/sysv/linux/sparc/bits/stat.h index 2fccb14cf9..17c912a70f 100644 --- a/sysdeps/unix/sysv/linux/sparc/bits/stat.h +++ b/sysdeps/unix/sysv/linux/sparc/bits/stat.h @@ -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 diff --git a/sysdeps/unix/sysv/linux/utimensat.c b/sysdeps/unix/sysv/linux/utimensat.c new file mode 100644 index 0000000000..f9b60a0d35 --- /dev/null +++ b/sysdeps/unix/sysv/linux/utimensat.c @@ -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 diff --git a/sysdeps/unix/sysv/linux/x86_64/bits/stat.h b/sysdeps/unix/sysv/linux/x86_64/bits/stat.h index e756d7e8ca..add2c8eca3 100644 --- a/sysdeps/unix/sysv/linux/x86_64/bits/stat.h +++ b/sysdeps/unix/sysv/linux/x86_64/bits/stat.h @@ -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 |