1 files changed, 47 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/arm/posix_fadvise64.c b/libc/sysdeps/linux/arm/posix_fadvise64.c
new file mode 100644
index 000000000..672443b7d
--- /dev/null
+++ b/libc/sysdeps/linux/arm/posix_fadvise64.c
@@ -0,0 +1,47 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * posix_fadvise64() for ARM uClibc
+ * http://www.opengroup.org/onlinepubs/009695399/functions/posix_fadvise.html
+ *
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <features.h>
+#include <unistd.h>
+#include <errno.h>
+#include <endian.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+#include <fcntl.h>
+
+#ifdef __UCLIBC_HAS_LFS__
+
+#if defined __NR_arm_fadvise64_64
+/* This is for the ARM version of fadvise64_64 which swaps the params
+ * about to avoid having ABI compat issues
+ */
+#define __NR___syscall_arm_fadvise64_64 __NR_arm_fadvise64_64
+int __libc_posix_fadvise64(int fd, __off64_t offset, __off64_t len, int advise)
+{
+  INTERNAL_SYSCALL_DECL (err);
+  int ret = INTERNAL_SYSCALL (arm_fadvise64_64, err, 6, fd, advise,
+                              __LONG_LONG_PAIR ((long)(offset >> 32), (long)offset),
+                              __LONG_LONG_PAIR ((long)(len >> 32), (long)len));
+  if (!INTERNAL_SYSCALL_ERROR_P (ret, err))
+    return 0;
+  if (INTERNAL_SYSCALL_ERRNO (ret, err) != ENOSYS)
+   return INTERNAL_SYSCALL_ERRNO (ret, err);
+  return 0;
+}
+weak_alias(__libc_posix_fadvise64, posix_fadvise64);
+#else
+int posix_fadvise64(int fd, __off64_t offset, __off64_t len, int advise)
+{
+        __set_errno(ENOSYS);
+        return -1;
+}
+#endif
+#endif