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Diffstat (limited to 'sysdeps/unix/sysv/linux/pwritev.c')
-rw-r--r--sysdeps/unix/sysv/linux/pwritev.c77
1 files changed, 25 insertions, 52 deletions
diff --git a/sysdeps/unix/sysv/linux/pwritev.c b/sysdeps/unix/sysv/linux/pwritev.c
index e66f08e1d2..b11606cfaf 100644
--- a/sysdeps/unix/sysv/linux/pwritev.c
+++ b/sysdeps/unix/sysv/linux/pwritev.c
@@ -15,67 +15,40 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <sys/param.h>
-#if __WORDSIZE == 64 && !defined PWRITEV
-/* Hide the pwritev64 declaration. */
-# define pwritev64 __redirect_pwritev64
-#endif
#include <sys/uio.h>
-
#include <sysdep-cancel.h>
-#include <sys/syscall.h>
-#include <kernel-features.h>
+#if __WORDSIZE != 64 || defined (__ASSUME_OFF_DIFF_OFF64)
-#ifndef PWRITEV
-# define PWRITEV pwritev
-# define PWRITEV_REPLACEMENT __atomic_pwritev_replacement
-# define PWRITE __pwrite
-# define OFF_T off_t
-#endif
-
-#define LO_HI_LONG(val) \
- (off_t) val, \
- (off_t) ((((uint64_t) (val)) >> (sizeof (long) * 4)) >> (sizeof (long) * 4))
-
-#ifndef __ASSUME_PWRITEV
-static ssize_t PWRITEV_REPLACEMENT (int, const struct iovec *,
- int, OFF_T) internal_function;
-#endif
+# ifdef __ASSUME_PREADV
+# ifndef __NR_pwritev
+# define __NR_pwritev __NR_pwritev64
+# endif
ssize_t
-PWRITEV (int fd, const struct iovec *vector, int count, OFF_T offset)
+pwritev (int fd, const struct iovec *vector, int count, off_t offset)
{
-#ifdef __NR_pwritev
- ssize_t result;
-
- result = SYSCALL_CANCEL (pwritev, fd, vector, count, LO_HI_LONG (offset));
-
-# ifdef __ASSUME_PWRITEV
- return result;
-# endif
-#endif
-
-#ifndef __ASSUME_PWRITEV
-# ifdef __NR_pwritev
+ return SYSCALL_CANCEL (pwritev, fd, vector, count,
+ __ALIGNMENT_ARG SYSCALL_LL (offset));
+}
+# else
+static ssize_t __atomic_pwritev_replacement (int, const struct iovec *,
+ int, off_t) internal_function;
+ssize_t
+pwritev (int fd, const struct iovec *vector, int count, off_t offset)
+{
+# ifdef __NR_pwritev
+ ssize_t result = SYSCALL_CANCEL (pwritev, fd, vector, count,
+ __ALIGNMENT_ARG SYSCALL_LL (offset));
if (result >= 0 || errno != ENOSYS)
return result;
-# endif
-
- return PWRITEV_REPLACEMENT (fd, vector, count, offset);
-#endif
+# endif
+ return __atomic_pwritev_replacement (fd, vector, count, offset);
}
-#if __WORDSIZE == 64 && defined pwritev64
-# undef pwritev64
-strong_alias (pwritev, pwritev64)
-#endif
-
-#ifndef __ASSUME_PWRITEV
-# undef PWRITEV
-# define PWRITEV static internal_function PWRITEV_REPLACEMENT
-# include <sysdeps/posix/pwritev.c>
+# define PWRITEV static internal_function __atomic_pwritev_replacement
+# define PWRITE __pwrite
+# define OFF_T off_t
+# include <sysdeps/posix/pwritev.c>
+# endif /* __ASSUME_PREADV */
#endif