mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-19 12:57:53 +00:00
123 lines
3.8 KiB
Diff
123 lines
3.8 KiB
Diff
2009-07-25 Aurelien Jarno <aurelien@aurel32.net>
|
|
|
|
* sysdeps/unix/sysv/linux/kernel-features.h: define
|
|
__ASSUME_FDATASYNC.
|
|
* sysdeps/unix/sysv/linux/fdatasync.c: New file.
|
|
* sysdeps/unix/sysv/linux/Makefile: compile fdatasync.c with
|
|
-fexceptions.
|
|
* sysdeps/unix/sysv/linux/syscalls.list: Remove fdatasync.
|
|
|
|
sysdeps/unix/sysv/linux/Makefile | 1
|
|
sysdeps/unix/sysv/linux/fdatasync.c | 69 ++++++++++++++++++++++++++++++
|
|
sysdeps/unix/sysv/linux/kernel-features.h | 6 ++
|
|
sysdeps/unix/sysv/linux/syscalls.list | 1
|
|
4 files changed, 76 insertions(+), 1 deletion(-)
|
|
|
|
--- a/sysdeps/unix/sysv/linux/Makefile
|
|
+++ b/sysdeps/unix/sysv/linux/Makefile
|
|
@@ -21,6 +21,7 @@
|
|
setfsuid setfsgid makedev epoll_pwait signalfd \
|
|
eventfd eventfd_read eventfd_write prlimit
|
|
|
|
+CFLAGS-fdatasync.c = -fexceptions
|
|
CFLAGS-gethostid.c = -fexceptions
|
|
CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=0x80000000-__getpagesize()"
|
|
|
|
--- /dev/null
|
|
+++ b/sysdeps/unix/sysv/linux/fdatasync.c
|
|
@@ -0,0 +1,69 @@
|
|
+/* fdatasync -- synchronize at least the data part of a file with
|
|
+ the underlying media. 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 <unistd.h>
|
|
+
|
|
+#include <sysdep-cancel.h>
|
|
+#include <sys/syscall.h>
|
|
+#include <bp-checks.h>
|
|
+
|
|
+#include <kernel-features.h>
|
|
+
|
|
+#if defined __NR_fdatasync && !defined __ASSUME_FDATASYNC
|
|
+static int __have_no_fdatasync;
|
|
+#endif
|
|
+
|
|
+static int
|
|
+do_fdatasync (int fd)
|
|
+{
|
|
+#ifdef __ASSUME_FDATASYNC
|
|
+ return INLINE_SYSCALL (fdatasync, 1, fd);
|
|
+#elif defined __NR_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)
|
|
+
|
|
--- a/sysdeps/unix/sysv/linux/kernel-features.h
|
|
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
|
|
@@ -459,6 +459,12 @@
|
|
# define __ASSUME_FUTEX_LOCK_PI 1
|
|
#endif
|
|
|
|
+/* Support for fsyncdata syscall was added in 2.6.22 on alpha, but it
|
|
+ was already present in 2.0 kernels on other architectures. */
|
|
+#if (!defined __alpha || __LINUX_KERNEL_VERSION >= 0x020616)
|
|
+# define __ASSUME_FDATASYNC 1
|
|
+#endif
|
|
+
|
|
/* Support for utimensat syscall was added in 2.6.22, on SH
|
|
only after 2.6.22-rc1. */
|
|
#if __LINUX_KERNEL_VERSION >= 0x020616 \
|
|
--- a/sysdeps/unix/sysv/linux/syscalls.list
|
|
+++ b/sysdeps/unix/sysv/linux/syscalls.list
|
|
@@ -12,7 +12,6 @@
|
|
epoll_create1 EXTRA epoll_create1 i:i epoll_create1
|
|
epoll_ctl EXTRA epoll_ctl i:iiip epoll_ctl
|
|
epoll_wait EXTRA epoll_wait Ci:ipii epoll_wait
|
|
-fdatasync - fdatasync Ci:i fdatasync
|
|
flock - flock i:ii __flock flock
|
|
fork - fork i: __libc_fork __fork fork
|
|
get_kernel_syms EXTRA get_kernel_syms i:p get_kernel_syms
|