diff options
Diffstat (limited to 'ports/sysdeps/unix')
-rw-r--r-- | ports/sysdeps/unix/sysv/linux/alpha/Makefile | 1 | ||||
-rw-r--r-- | ports/sysdeps/unix/sysv/linux/alpha/fdatasync.c | 65 | ||||
-rw-r--r-- | ports/sysdeps/unix/sysv/linux/alpha/kernel-features.h | 5 |
3 files changed, 71 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/alpha/Makefile b/ports/sysdeps/unix/sysv/linux/alpha/Makefile index f64f23fd7a..9676feea98 100644 --- a/ports/sysdeps/unix/sysv/linux/alpha/Makefile +++ b/ports/sysdeps/unix/sysv/linux/alpha/Makefile @@ -20,6 +20,7 @@ sysdep_routines += osf_select osf_gettimeofday osf_settimeofday \ # Support old ipc control sysdep_routines += oldmsgctl oldsemctl oldshmctl +CFLAGS-fdatasync.c = -fexceptions CFLAGS-ioperm.c = -Wa,-mev6 endif diff --git a/ports/sysdeps/unix/sysv/linux/alpha/fdatasync.c b/ports/sysdeps/unix/sysv/linux/alpha/fdatasync.c new file mode 100644 index 0000000000..10f5035787 --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/alpha/fdatasync.c @@ -0,0 +1,65 @@ +/* fdatasync -- synchronize at least the data part of a file with + the underlying media. Linux version. + + Copyright (C) 2007-2012 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, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <unistd.h> + +#include <sysdep-cancel.h> +#include <sys/syscall.h> +#include <bp-checks.h> + +#include <kernel-features.h> + +static int +do_fdatasync (int fd) +{ +#ifdef __ASSUME_FDATASYNC + return INLINE_SYSCALL (fdatasync, 1, fd); +#elif defined __NR_fdatasync + static int __have_no_fdatasync; + + if (!__builtin_expect (__have_no_fdatasync, 0)) + { + int result = INLINE_SYSCALL (fdatasync, 1, fd); + if (__builtin_expect (result, 0) != -1 || errno != ENOSYS) + return result; + + __have_no_fdatasync = 1; + } +#endif + return INLINE_SYSCALL (fsync, 1, fd); +} + +int +__fdatasync (int fd) +{ + if (SINGLE_THREAD_P) + return do_fdatasync (fd); + + int oldtype = LIBC_CANCEL_ASYNC (); + + int result = do_fdatasync (fd); + + LIBC_CANCEL_RESET (oldtype); + + return result; +} + +weak_alias (__fdatasync, fdatasync) diff --git a/ports/sysdeps/unix/sysv/linux/alpha/kernel-features.h b/ports/sysdeps/unix/sysv/linux/alpha/kernel-features.h index ee349bc93d..9fb53798a0 100644 --- a/ports/sysdeps/unix/sysv/linux/alpha/kernel-features.h +++ b/ports/sysdeps/unix/sysv/linux/alpha/kernel-features.h @@ -82,4 +82,9 @@ #undef __ASSUME_STATFS64 #define __ASSUME_STATFS64 0 +/* Support for fsyncdata was added for alpha after 2.6.21. */ +#if __LINUX_KERNEL_VERSION >= 0x020616 +# define __ASSUME_FDATASYNC 1 +#endif + #endif /* _KERNEL_FEATURES_H */ |