summaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/pwritev64.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/linux/pwritev64.c')
-rw-r--r--sysdeps/unix/sysv/linux/pwritev64.c60
1 files changed, 55 insertions, 5 deletions
diff --git a/sysdeps/unix/sysv/linux/pwritev64.c b/sysdeps/unix/sysv/linux/pwritev64.c
index 1e8168f103..2152ec163b 100644
--- a/sysdeps/unix/sysv/linux/pwritev64.c
+++ b/sysdeps/unix/sysv/linux/pwritev64.c
@@ -1,6 +1,56 @@
-#define PWRITEV pwritev64
-#define PWRITEV_REPLACEMENT __atomic_pwritev64_replacement
-#define PWRITE __pwrite64
-#define OFF_T off64_t
+/* Copyright (C) 2016-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-#include "pwritev.c"
+ 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 <sys/uio.h>
+#include <sysdep-cancel.h>
+
+#ifdef __ASSUME_PWRITEV
+
+# ifndef __NR_pwritev64
+# define __NR_pwritev64 __NR_pwritev
+# endif
+
+ssize_t
+pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset)
+{
+ return SYSCALL_CANCEL (pwritev64, fd, vector, count, LO_HI_LONG (offset));
+}
+#else
+static ssize_t __atomic_pwritev64_replacement (int, const struct iovec *,
+ int, off64_t);
+ssize_t
+pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset)
+{
+#ifdef __NR_pwritev64
+ ssize_t result = SYSCALL_CANCEL (pwritev64, fd, vector, count,
+ LO_HI_LONG (offset));
+ if (result >= 0 || errno != ENOSYS)
+ return result;
+#endif
+ return __atomic_pwritev64_replacement (fd, vector, count, offset);
+}
+# define PWRITEV static __atomic_pwritev64_replacement
+# define PWRITE __pwrite64
+# define OFF_T off64_t
+# include <sysdeps/posix/pwritev_common.c>
+#endif
+libc_hidden_def (pwritev64)
+
+#ifdef __OFF_T_MATCHES_OFF64_T
+strong_alias (pwritev64, pwritev)
+libc_hidden_def (pwritev)
+#endif