summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/powerpc/posix_fadvise.c
diff options
context:
space:
mode:
Diffstat (limited to 'libc/sysdeps/linux/powerpc/posix_fadvise.c')
-rw-r--r--libc/sysdeps/linux/powerpc/posix_fadvise.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/powerpc/posix_fadvise.c b/libc/sysdeps/linux/powerpc/posix_fadvise.c
new file mode 100644
index 000000000..ce3574f4e
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/posix_fadvise.c
@@ -0,0 +1,36 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * posix_fadvise() for 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 <sys/syscall.h>
+#include <fcntl.h>
+
+#ifdef __NR_fadvise64
+#define __NR_posix_fadvise __NR_fadvise64
+int posix_fadvise(int fd, off_t offset, off_t len, int advice)
+{
+ INTERNAL_SYSCALL_DECL(err);
+ int ret = (int) (INTERNAL_SYSCALL(posix_fadvise, err, 6, fd, 0,
+ __LONG_LONG_PAIR (offset >> 31, offset), len, advice));
+ if (INTERNAL_SYSCALL_ERROR_P (ret, err))
+ return INTERNAL_SYSCALL_ERRNO (ret, err);
+ return 0;
+}
+
+#if defined __UCLIBC_HAS_LFS__ && (!defined __NR_fadvise64_64 || !defined _syscall6)
+strong_alias(posix_fadvise,posix_fadvise64)
+#endif
+
+#else
+int posix_fadvise(int fd attribute_unused, off_t offset attribute_unused, off_t len attribute_unused, int advice attribute_unused)
+{
+#warning This is not correct as far as SUSv3 is concerned.
+ return ENOSYS;
+}
+#endif