diff options
| author | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2012-06-18 11:18:10 +0200 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2013-01-08 09:02:36 +0100 |
| commit | ff6efa4488b338e0a72f574b26e4fff669acab8d (patch) | |
| tree | c23eebc884bc2efce47ad3eb146033201d86f532 /libc/sysdeps | |
| parent | 495c425c3b10fd9e277995fa2a379ba4a62f78bf (diff) | |
libc: handle sync_file_range
Add cancellation and support arm, ppc64, mips32.
Compile-tested.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc/sysdeps')
| -rw-r--r-- | libc/sysdeps/linux/common/sync_file_range.c | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/libc/sysdeps/linux/common/sync_file_range.c b/libc/sysdeps/linux/common/sync_file_range.c index b07f8e501..66751c65d 100644 --- a/libc/sysdeps/linux/common/sync_file_range.c +++ b/libc/sysdeps/linux/common/sync_file_range.c @@ -4,24 +4,34 @@ * * Copyright (C) 2008 Bernhard Reutner-Fischer <uclibc@uclibc.org> * - * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. */ #include <sys/syscall.h> - -#if defined __NR_sync_file_range && defined __UCLIBC_HAS_LFS__ && defined __USE_GNU +#if defined __UCLIBC_HAS_LFS__ && defined __USE_GNU +# include <bits/wordsize.h> +# include <endian.h> # include <fcntl.h> +# include <cancel.h> -# define __NR___syscall_sync_file_range __NR_sync_file_range -static __inline__ _syscall6(int, __syscall_sync_file_range, int, fd, - off_t, offset_hi, off_t, offset_lo, - off_t, nbytes_hi, off_t, nbytes_lo, unsigned int, flags) +# ifdef __NR_sync_file_range2 +# undef __NR_sync_file_range +# define __NR_sync_file_range __NR_sync_file_range2 +# endif -int sync_file_range(int fd, off64_t offset, off64_t nbytes, unsigned int flags) +# ifdef __NR_sync_file_range +static int __NC(sync_file_range)(int fd, off64_t offset, off64_t nbytes, unsigned int flags) { - return __syscall_sync_file_range(fd, - __LONG_LONG_PAIR((long)(offset >> 32), (long)(offset & 0xffffffff)), - __LONG_LONG_PAIR((long)(nbytes >> 32), (long)(nbytes & 0xffffffff)), - flags); +# if defined __powerpc__ && __WORDSIZE == 64 + return INLINE_SYSCALL(sync_file_range, 4, fd, offset, nbytes, flags); +# elif defined __mips__ && __WORDSIZE == 32 + return INLINE_SYSCALL(sync_file_range, 7, fd, 0, + OFF64_HI_LO(offset), OFF64_HI_LO(nbytes), flags); +# else + return INLINE_SYSCALL(sync_file_range, 6, fd, + OFF64_HI_LO(offset), OFF64_HI_LO(nbytes), flags); +# endif } +CANCELLABLE_SYSCALL(int, sync_file_range, (int fd, off64_t offset, off64_t nbytes, unsigned int flags), (fd, offset, nbytes, flags)) +# endif #endif |