1 files changed, 46 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/pwrite.c b/newlib/libc/sys/linux/pwrite.c
new file mode 100644
index 000000000..239463e59
--- /dev/null
+++ b/newlib/libc/sys/linux/pwrite.c
@@ -0,0 +1,46 @@
+/* Linux version of pwrite so we can have a weak alias */
+
+#include <_ansi.h>
+#include <unistd.h>
+#include <reent.h>
+#include <machine/weakalias.h>
+
+ssize_t
+_DEFUN (_pwrite_r, (rptr, fd, buf, n, off),
+     struct _reent *rptr _AND
+     int fd _AND
+     _CONST _PTR buf _AND
+     size_t n _AND
+     off_t off)
+{
+  off_t cur_pos;
+  _READ_WRITE_RETURN_TYPE num_written;
+  
+  if ((cur_pos = _lseek_r (rptr, fd, 0, SEEK_CUR)) == (off_t)-1)
+    return -1;
+
+  if (_lseek_r (rptr, fd, off, SEEK_SET) == (off_t)-1)
+    return -1;
+
+  num_written = _write_r (rptr, fd, buf, n);
+
+  if (_lseek_r (rptr, fd, cur_pos, SEEK_SET) == (off_t)-1)
+    return -1;
+
+  return (ssize_t)num_written;
+}
+
+#ifndef _REENT_ONLY
+
+ssize_t
+_DEFUN (__libc_pwrite, (fd, buf, n, off),
+     int fd _AND
+     _CONST _PTR buf _AND
+     size_t n _AND
+     off_t off)
+{
+  return _pwrite_r (_REENT, fd, buf, n, off);
+}
+weak_alias(__libc_pwrite,pwrite)
+
+#endif